Ceph 3 Node Performance









-Reaching full capacity Either the whole cluster is reaching full capacity or some nodes are near full or full but overall cluster is not. Hi, I have a 3 nodes cluster running on 11x SATA HDDs and 6xSSDs, all consumer. The performance improvements were immediate and nothing short of phenomenal. Gluster is a scalable network filesystem. Ceph is an independent open source project. The following examples describe performance domains. They are horrible with anything below maybe 8 nodes. The Red Hat Ceph Storage environment makes use of industry standard servers that form Ceph nodes for scalability, fault-tolerance, and performance. Also I'm using Jewel version of Ceph and rbd-provisioner is based on Jewel as well. +16dBm - Energy Consumption: ~ 0. 3% scale out well. One 25GbE port should handle the full read bandwidth a Ceph server with 40+ HDDs or 5-12 SSDs (depending on SSD type). self-healing, self-managing, intelligent storage nodes (OSDs) and lightweight monitors (Mons) $ ceph fs set cephfs max_mds 3 $ ceph status Performance. The full 750-node cluster, running 2-3 W per processor, runs at 1000W idle, 3000W at typical and 4000W at peak (with the switches) and is substantially cheaper, if also computationally a lot slower. For example, LinkedIn mobile uses nginx. My adventures with Ceph Storage. 3 Adding Nodes to CHPC Clusters. 4 Additional Information 2 Salt Cluster Administration 2. HA Partner The name of the HA partner node, if applicable. eploying Ceph with igh erformance Networks Architectures and enchmarks for Block Storage Solutions Ceph-deploy 1. it's easy to migrate a VM from one node to another node. Consistently, write speed drops significantly when load is generated by all 4 nodes. at boot time We need to create a services file for 'RBD Auto Mount'. TestDrive a HyperDrive Try a Ceph-Powered Scale-out Storage Cluster for 90 Days. As an example, you can retrieve the latest performance data for an OSD on Charlie, given an OSD ID of 3, with:. total number of nodes n for a full binary tree with depth d is: n = 20 + 21 + 22 + … + 2d = 2d+1 − 1 For example, the full binary tree of depth 2 above has 23 – 1 = 7 nodes. For HA Ceph cluster you need at least three nodes. With one more OSD node, the performance of Ceph with iWARP increased by 48. At the moment we're running about 50 VMs (Windows and Linux servers) which have assigned 192 vCPU cores, 377 GB RAM and 12 TB allocated storage, of which 8,3 TB are really in use. 2 of those nodes (kolla1 and kolla2) will also provide other services like control, network, compute, and monitoring. Before you delve into the actual installation let’s take a moment to look at the big picture. The Ceph Reference Architecture can deliver 693K IOPS to I/O-intensive workloads and 28. Test methodology a. 2 Journal; 3. Consider a small system with 4 nodes using 3 X replication; should a complete server fail then the system now is only 75% more capable than before the failure. Dell EMC Ready Architecture for Red Hat Ceph Storage 3. [size=2]I believe that I have a unknown problem with this node-locked license. Figure 2: Ceph can scale out to many nodes for both redundancy and increased performance for multiple database instances. Download it to your local machine which will act as the local head node. Ceph is used to build multi-petabyte storage clusters. Performance Admin Node,Gateway Nodes, Monitor Node, OSD Node / SKU: SYS-F629P3-S0SBS 4U 4 Nodes: SYS-F629P3-S0SBS + CSE-826BE1C-R741JBOD 4U 4 Nodes w/ JBOD: SYS-F629P3-S0SBS + CSE-826BE1C-R741JBOD 4U 4 Nodes w/ JBOD: 1: Data Disks SAS SAS SATA SSD 128 TB - 16x 8TB 3. DISCLAIMER: I am a Python web developer , who uses Web2py and Tornado for web development , But i will try to be as least bias as possible. For optimal performance, while also adding redundancy, this sample will configure Ceph to make three full copies of the data on multiple nodes. In this guide, we will cover the installation and configuration of a fully functional Ceph Storage Cluster on Ubuntu 18. No Commitment. // Load the core build. Here are the two options I'm considering: OPTION 1 6 spinning hard disks for OSDs, 2 per node. com) — 1-Blockchain Node. Benchmarks: Node. Therefore, Ceph builds on the base RADOS capabilities and provides higher-level storage types that can be more easily consumed by clients. The basic building block of a Ceph storage cluster is the storage node. Ceph provides a POSIX-compliant network file system (CephFS) that aims for high performance, large data storage, and maximum compatibility with legacy applications. We have 4 OSDs in each. I supposed that compiling with a node-locked license would give me better performance. ML120 PRO RGB LED 120MM PWM Premium Magnetic Levitation Fan — 3 Fan Pack with Lighting Node PRO. StopTech (950. Slow performance is defined when the cluster is actively processing IO requests, but it appears to be operating at a lower performance level than what is expected. Ceph on 8 node 5 OSD nodes - 24 cores - 128 GB RAM 16 OSD daemons per node - 1 per SSD, 5 per NVME 3 MON/MDS nodes - 24 cores - 128 GB RAM 9 client nodes 16 cores - 64 GB RAM Basic networking performance • • • • 25G networking, 25G to 100G interfaces Client node -> OSD node 25Gbit/s Multiple client nodes -> OSD node 72 Gbit/s. Now with HCI 3. I hope that number grabs your attention. 2 Adding New Roles to Nodes 2. The size of the “global datasphere” will grow to 163 zettabytes, or 163 trillion gigabytes, by 2025, according to IDC. "When a Ceph Storage Cluster runs multiple Ceph Monitors for high availability, Ceph Monitors use Paxos to establish consensus about the master cluster map. A kind of DRBD on steroids… 高可用性. These slow requests will likely be highlighted on the Ceph status display with a counter for how long the request has been blocked. Review the build differences & pick one that’s right for you. 0 were clearly more consistent compared to the dynamic languages — Python and Node. The ceph-mon charm deploys Ceph monitor nodes, allowing one to create a monitor. Good Morning. ZFS send) seems to be a better solution generally. As an example, you can retrieve the latest performance data for an OSD on Charlie, given an OSD ID of 3, with:. Table 3 Pilot study datasets showing the performance metrics and significance results of the proposed approach and each physician expert to localize the metastatic lymph node and remnant tissue. OSD: st6000nm0034 block. 3 BlueStore/Beast performance with Red Hat Ceph Storage 2. Some features of the combined Red Hat Ceph Storage and Samsung NVMe Reference Design are: • OpenStack integration • S3 and SWIFT support using RESTful interfaces • High performance − 700K+ IOPS for small (4 KB) random IO across a 3-node Ceph cluster − 30 GB/s for large (128 KB) sequential IO across a 3-node Ceph cluster. js 12 has arrived as the latest version of the server-side JavaScript framework, with faster startup and improved default heap limits. 3 x Monitoring Node, per node: - 4GB RAM - Dual Core CPU (with HT) - Single 120 GB Intel Enterprise SSD - 2 x 1 GB Network (Active/Backup) Replication/size: 2 Ceph Version: 12. With the integration of Ceph, an open source software-defined storage platform, Proxmox VE has the ability to run and manage Ceph storage directly on the hypervisor nodes. 04-based node, which carries two virtual appliances: • Fuel Master node—an. Frontend and backend mobile teams could be combined into a single unit. 10GbE Aggregate performance of 4 Ceph servers 25GbE: 67Gb/s & 242K IOPS (vs. The Cisco UCS S3260 Storage Server can be used for all types of Red Hat Ceph Storage target workloads. 0 installed, as well as. Generally speaking, distributing the same number of disks among twice as many storage nodes will double performance. The boxes have 4 Cpu with 8g mem on each one of them. Part 1 introduced the benefits of adding MongoDB to Mirage to enhance the performance of Mirage when working with a large number of small files. 5-inch NVMe SSDs. A Ceph storage cluster is built from large numbers of nodes for scalability, fault-tolerance, and performance. It will upgrade the Ceph on your node to Nautilus. It is limited by a sum of local hard drive (do not forget each node participates as a data server as well) speed and available network bandwidth. RBD FIO 4KB Random 70% Read / 30% Write Performance. SUSE: With Ceph being an Open Source community project, there is no anticipated effect on the Ceph project as a result of the pending IBM acquisition of Red Hat. Ceph Ceph was designed to fulfill the following goals specified by three national laboratories (LLNL, LANL, and Sandia) back in 2005: Petabytes of data on one to thousands of hard drives. MySQL Client Nodes 12x Super Server 2UTwin2 nodes Dual Intel Xeon E5-2670v2 (cpuset limited to 8 or 16 vCPUs) 64GB SDRAM DDR3 Storage Server Software: Red Hat Ceph Storage 1. Follow the tasks allocated by TL/ PMDevelop high performance, reusable & bug - free applicationsBug…See this and similar jobs on LinkedIn. Working Ceph Cluster. MIT licensed, with 30k+ stars on Github. -Reaching full capacity Either the whole cluster is reaching full capacity or some nodes are near full or full but overall cluster is not. Observation 3 — Consistent performance of compiled vs dynamic. CPU Groups. Getting started. Register for Agility 2020 to get the education, inspiration, and networking you need. As we can see, if we introduce the client-side cache feature to OLTP on the Ceph solution, we can expect greater improvement of OLTP performances. n MONs MON. Tesla Model 3 Performance Insurance daveymatey on 08/05/2020 - 19:31 I just put through my order for a model 3 and was wondering where the cheapest insurance is for NSW and can cover me under my parents name. Hi, I have a 3 nodes cluster running on 11x SATA HDDs and 6xSSDs, all consumer. Ceph client ID that is capable of creating images in the pool. Because of this capability, the overlay2 driver provides better performance for layer-related Docker commands, such as docker build, and consumes fewer inodes on the backing filesystem. Generally, slow performance is caused by a component of your Ceph cluster reaching saturation and becoming a bottleneck. Workload is generated by 400 clients on 20 additional nodes. Cluster monitors (ceph-mon) that keep track of active and failed cluster nodes, cluster configuration, and information about data placement and global cluster state. 1 write per node) it depends how fast the HDD-server can write the file to one of its OSD. Ceph MDS is running on the OSD nodes. To use the cache you # must provide separate disks than those for the OSDs # ceph_enable_cache: "no" # Valid options are [ forward, none, writeback ] # ceph_cache_mode: "writeback" # A requirement for using the erasure-coded pools is you must setup a cache tier. For optimal performance, while also adding redundancy, this sample will configure Ceph to make three full copies of the data on multiple nodes. The Cisco UCS S3260 Storage Server can be used for all types of Red Hat Ceph Storage target workloads. Replace the contents of BlogPostBenchmarks. Storage node • CPU ‒ Number and speed of cores • Memory • Storage controller ‒ Bandwidth, performance, cache size • SSDs for OSD journal ‒ SSD to HDD ratio • HDDs ‒ Count, capacity, performance. Measure the single DTN node performance of a Lustre client (max. Gigabyte R272-Z31 running latest BIOS (R10) 40Gbit OCP 3. When using block storage, such as Ceph RBD, the physical block storage is managed by the pod. The group ID defined in the pod becomes the group ID of both the Ceph RBD mount inside the container, and the group ID of the actual storage itself. Online shopping for Automotive from a great selection of Carburetors & Parts, Fuel Injection, Fittings, Fuel Pumps & Accessories, Nitrous Oxide Accessories & more at everyday low prices. At this point, the average CPU utilization on the Ceph storage nodes is over 90%, limiting performance. Now install Ceph on all other nodes from the ceph-admin node. Introduction With the continuing development of new. csproj with the following:. The Ceph Manager daemon. x release) or store the content of files in a filesystem. Install Ceph on All Nodes. The clustered NAS can scale in two-node increments to a total of 24 nodes, with 1. 2 corosync 2. Waits while the file system opens and reads the file. Ceph scales very well by adding new OSD nodes when capacity increase is required. RA3 nodes leverage your workload patterns and advanced data management techniques, such as automatic fine-grained data eviction and intelligent data pre-fetching, to deliver the performance of local SSD while scaling storage automatically to S3. Tesla Model 3 Performance Insurance daveymatey on 08/05/2020 - 19:31 I just put through my order for a model 3 and was wondering where the cheapest insurance is for NSW and can cover me under my parents name. MySQL on Kubernetes with Ceph performance report¶ This scenario is executed with Sysbench tool. Using Ceph as a Block Device on the CentOS 7 Client node has been successful. Local raid and failover / replication (e. You absolutely have to wide stripe to as many nodes as you can do. A Ceph storage cluster is built from large numbers of nodes for scalability, fault-tolerance, and performance. This is the fourth episode of the performance blog series on RHCS 3. Ceph reaction to a missing OSD If an OSD goes down, the Ceph cluster starts copying data with fewer copies than specified. It can be deployed on top of commodity servers and sup-. 0 were clearly more consistent compared to the dynamic languages — Python and Node. Buy a Red Hat Ceph Storage - premium subscription (1 year) - 12 physical nodes, u or other Storage Networking/SAN Software at CDW. 8 Replacing an OSD Disk. I have been successful in deploying 3-node Containerized Ceph cluster. Each node uses intelligent daemons that communicate with each other to: • Store and retrieve data • Replicate data • Monitor and report on cluster health. Added in Ceph 11. js applications and compete in the modern digital era. 0 installed, as well as. After evaluation, some of the advantages of Node. Seagate Confidential 3 Configurations: • All flash storage - Performance • Highest performance per node • Less maximum capacity per node • Hybrid HDD and flash storage - Balanced • Balances performance, capacity and cost • Application and workload suitable for • Performance critical data on flash • Utilize host software caching. x) Results Fair Use Guidelines. Here are the two options I'm considering: OPTION 1 6 spinning hard disks for OSDs, 2 per node. As an example, you can retrieve the latest performance data for an OSD on Charlie, given an OSD ID of 3, with:. Withdrawn VMmark 3. With a replica of 3 (i. We also take advantage of Content Delivery Networks (CDNs), which copy the static assets to servers around the world. Upgrade on each Ceph cluster node. Installation packages are available in the form of package repositories for Linux. in capacity and performance by supporting flexible configurations from 4 up to 500 nodes. Because the overlay driver works with a single lower OverlayFS layer, you cannot implement multi-layered images as multiple OverlayFS layers. com /testdrive Built for Storage, Not Compute. The key to Ceph is parallelism. 5'' HDD) OSD: RADOS¶ Tuning have significant performance impact of Ceph storage system, there are hundreds of tuning knobs for swift. The System's capability to recover from a failure. 1-24 of over 1,000 results for Automotive: Performance Parts & Accessories: Filters: Air Intake K&N Cold Air Intake Kit: High Performance, Guaranteed to Increase Horsepower: 2014-2020 Chevy/GMC/Cadillac (Silverado 1500, Suburban, Tahoe, Sierra 1500, Yukon, Yukon Denali, Escalade) V8,63-3082. We are constantly working to improve the Node. Step #1 Update the ceph-values. Docker installed on a Server to run Prometheus Ceph exporter. External Graphics over Thunderbolt 3 using the AKiTiO Node External video cards for laptops have long been a dream of many PC enthusiasts, and for good rea. The approach is demonstrated with a practical application to the erasure coding plugins of the increasingly popular CEPH distributed file system. This presentation provides a basic overview of Ceph, upon which SUSE Storage is based. num_osds, ceph. Tweaking some memory settings seems to help but does not eliminate the problem entirely. The XFS file system performs well, too, but you should avoid the Ext4 file system. Ceph Reference Design for NVMe Extensible platform for IOPS. js applications to debug and overcome bottlenecks. It should be able to talk to ceph cluster. Object storage devices ( ceph-osd ) that use a direct, journaled disk storage (named BlueStore, [9] since the v12. For production purposes Ceph recommends 3 monitors. If this results in only two monitor daemons, you may add more monitors by repeating this procedure until you have a sufficient number of ceph-mon daemons to achieve a quorum. Show Archived. The Large 3595-based VM is intended for use as a performance-enhanced MnT node. yaml -n 3 ceph-osd juju deploy --to lxd:0 ceph-mon juju add-unit --to lxd:1 ceph-mon juju add-unit --to lxd:2 ceph-mon juju add-relation ceph-osd ceph-mon Here, a containerised MON is running alongside each OSD. Ceph's Controlled Replication Under Scalable Hashing, or CRUSH, algorithm decides where to store data in the Ceph object store. 2 Ceph Performance & Benchmarking by Mark Nelson; 8. 5 Each node configured with 5 OSDs (HDDs), 1 Journal (PCIe SSD) 3 Monitors eploying Ceph with igh erformance Networks Architectures and enchmarks for Block Storage Solutions page 4. js® is a JavaScript runtime built on Chrome's V8 JavaScript engine. • Replicate data. The following examples describe performance domains. RBD FIO 4KB Random 70% Read / 30% Write Performance. More detailed Installation Guide. With a replica of 3 (i. CEPH write performance pisses me off! Thread starter i did read to check CPU usage as write can use that a bit more liberally but each OSD node's CPU is at 30-40% usage on active read/write operations. Have said this if performance is ok for your need ceph is fun to play. Reference Design - Hardware. Removing a Ceph Monitor using Ansible; 1. js, and PHP. Note that the Gen 3 servers have larger disks, and thus Ceph puts twice as much data on them, and thus they get double the IOPS than the old servers. com TECHNOLOGY DETAIL Red Hat Ceph Storage on servers with Intel processors and SSDs 3 CEPH ARCHITECTURE OVERVIEW A Ceph storage cluster is built from large numbers of Ceph nodes for scalability, fault-tolerance, and performance. It is limited by a sum of local hard drive (do not forget each node participates as a data server as well) speed and available network bandwidth. 0 Filestore/Civetweb December 5, 2019 This post is the sequel to the object storage performance testing we did two years back based on Red Hat Ceph Storage 2. Encoding rate (r) = 3 / 5 = 0. With 10 drives per storage node, this architecture has a usable storage capacity of 232TB that can be scaled out by adding additional 1U storage nodes. The following examples describe performance domains. 6, CentOS 7. 5 PB using 7+2 Erasure Code 2. In a BigBang Core system with a. Approach to storing data 2. yaml -n 3 ceph-osd juju deploy --to lxd:0 ceph-mon juju add-unit --to lxd:1 ceph-mon juju add-unit --to lxd:2 ceph-mon juju add-relation ceph-osd ceph-mon Here, a containerised MON is running alongside each OSD. Thus, we conducted this meta-analysis. So, before you start benchmarking your cluster, you need to obtain baseline performance statistics for the two main components of your Ceph infrastructure: your disks and your network. Setup Ceph Cluster. The Ceph Storage Cluster is the foundation for all Ceph deployments. It is not clear yet whether it’s a bug in Ceph or a problem in how Rook manages Ceph. Install Ceph on All Nodes. SUSE Enterprise Storage, powered by Ceph, is a software-defined storage solution that reduces capital expenditures while it provides unlimited scalability, allowing IT organizations to improve the speed, durability, and reliability of their data and data-based services. My idea is to use a 3 host cluster with ceph with local storage for OSDs in a hybrid disk environment. This may be your Ceph storage node as well, if that is how it was installed. Time to learn by example, so the third tip in this series focuses on an example process flow diagram in SAS Enterprise Miner. There is currently no application for its use as a PAN, PSN, or pxGrid node. Ceph Performance Testing vs. Upgrade all your nodes with the following commands. Ceph is a free-software storage platform, implements object storage on a single distributed computer cluster, and provides interfaces for object-, block- and file-level storage. The below diagram shows the layout of an example 3 node cluster with Ceph storage. Complications. CEPH is an open source software intended to provide highly scalable object, block, and file-based storage in a unified system. 07/23/2019; 2 minutes to read; In this article. There are two faculty involved at the OPL. With a myriad of HTTP utility methods and middleware at your disposal, creating a robust API is quick and easy. Summary (sorry for not providing an image): Node A: 1st link. You can use 2 Proxmox servers for a multi-node setup, but if you want to set up Proxmox for high availability, you need 3 or more Proxmox nodes. A million uses and counting. Questions and answers OpenStack Community Ceph mon on neutron controller node. 1 Node as a NAS for DATA also a R710 with 4-6x 2tb drives. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. This will allow the single-node Ceph cluster to operate in a clean state, ready and willing to serve requests. Brandt Carlos Maltzahn University of California, Santa Cruz {sage,aleung,scott,carlosm}@cs. /PRNewswire/ -- Super Micro Computer, Inc. Designing for High Performance Ceph at Scale - Duration: 46:40. juju deploy --config ceph-osd. The group ID defined in the pod becomes the group ID of both the Ceph RBD mount inside the container, and the group ID of the actual storage itself. We like to setup a as-far-as-possible-standard installation of PVE and Ceph. Ceph monitor maintains the cluster state, autherntication, logging, monitor map, manager map, OSD map, CRUSH map. But this can become a bottleneck because when a write has to be destaged from the journal to the OSD, the same disk has to read from the journal and write to the OSD, thus. performance-now. Ceph: A Scalable, High-Performance Distributed File System Ceph Architecture Metadata Distribution in Ceph In the past, distributed filesystems have used static sub-tree partitioning to distribute filesystem load This does not perform optimally for some cases (e. 2 Percona Server 5. With a replica of 3 (i. Follow the tasks allocated by TL/ PMDevelop high performance, reusable & bug - free applicationsBug…See this and similar jobs on LinkedIn. Ceph BlueStore Performance on Latest Intel Server Platforms Orlando Moreno Performance Engineer, Intel Corporation May 10, 2018. A Ceph storage cluster is built from large numbers of nodes for scalability, fault-tolerance, and performance. I don't have any experience with Ceph and I wanted to get some people's opinions on this: 3 Node Cluster (2x R510, 1xR520) Storage to be used for light VM usage. The complete 6LoWPAN mesh network runs on top of the TI-15. Added in Ceph 11. just making sure "ceph -s" == "ceph status" Comment 5 John Fulton 2017-10-12 16:09:02 UTC (In reply to Jon Schlueter from comment #4 ) > just making sure "ceph -s" == "ceph status" yes. The data is replicated, making it fault tolerant. Just add one more node and be done with it After a quick glance something between EPYC 7251 and 7351 should do, Intel P4610 SSDs, plus 128-ish GB RAM, but picking the CPU is like stabbing in the dark, for RAM I still need to read through the Ceph planning guides. At the same time, you. Being a professional asp. Some colleagues of mine have suggested to test ScaleIO. So, before you start benchmarking your cluster, you need to obtain baseline performance statistics for the two main components of your Ceph infrastructure: your disks and your network. Get to know the community. This enables lower cost all-flash arrays that can displace HDD arrays needing more performance, as well as displace TLC all-flash arrays that are cost sensitive and need more density. So it is around $100,000 for a base configuration. For example consider 3 nodes where one node only carries HDDs. Complications. It is required. Hi, I have a 3 nodes cluster running on 11x SATA HDDs and 6xSSDs, all consumer. 2 Object Storage Architecture Guide Dell EMC Service Provider Solutions. My adventures with Ceph Storage. In some cases, the network adapter is connected to the second numa node. 2 GigaFLOPS. (I think I was around 100k iops 4k). The performance of HHVM is about 74% better than Zend PHP. Create a directory named BlogPostBenchmarks. 3, Red Hat Enterprise Linux® 7. Eagle nodes have a theoretical peak performance of 3,456 GigaFLOPS—3. As we can see, if we introduce the client-side cache feature to OLTP on the Ceph solution, we can expect greater improvement of OLTP performances. Phoronix: AMD Ryzen 3 2200G + Ryzen 5 2400G Linux CPU Performance, 21-Way Intel/AMD Comparison Yesterday I posted some initial Linux benchmarks of the Ryzen 5. It is not clear yet whether it’s a bug in Ceph or a problem in how Rook manages Ceph. However it provides 3 nodes trial for free. The example uses high-performance data mining (HPDM) nodes to build the following modeling flow and requires SAS High-Performance Data Mining license to run in a distributed mode. • Ceph filesystem: uses multiple metadata servers with dynamic subtree partitioning • Goal: make Ceph available for use by Hadoop, with similar or better performance Ceph scalability advantages • Ceph's metadata server is dynamically distributed over many nodes • Ceph's reliable object store handles replication, rebalancing, and. Data transfer nodes are used to allow transfers between local and remote sites. CBT - The Ceph Benchmarking Tool INTRODUCTION. Save the secret definition to a file, for example ceph-secret. It can be deployed on top of commodity servers and sup-. ? [ceph] Show snapshot real disk usage. A four-node cluster in this configuration can use as little as a 4U rack space for the storage nodes while providing 672TB of raw capacity (=224TB usable with triple replication). The Ceph gateway node is an object storage interface that provides applications with a RESTful gateway to the Ceph cluster. A Ceph storage cluster is built from large numbers of nodes for scalability, fault-tolerance, and performance. If a usable node comes online, Rook will begin to use it automatically. Keywords Performance modeling Cloud computing and big data infrastructures Storage systems Erasure codes CEPH. nodes in its massive Hadoop clusters at over 42,000 nodes as of July 2011, while Facebook stores more than 100 PetaByte of data on HDFS. Configure placement of data to reflect SLAs, performance requirements, and failure domains using the CRUSH algorithm. In addition, two minimum master nodes should be detected by other nodes (we have 3 masters). Let’s dive a little deeper into 3 Ceph features: Scalability: This is the reason most of our customers truly love Ceph - its ability to scale in both capacity and performance. Weil Andrew W. Ceph support on Ubuntu. The Ceph platform is a software-only product based on multiple storage nodes and a technology called Rados (reliable autonomic distributed object store) that lays out and manages data across. About 10MB write and 50MB read. The Ceph performance counters are a collection of internal infrastructure metrics. 2 corosync 2. 6 < 1 Storage Required = 1 / 0. Design and performance evaluation of a GMPLS-enabled MPLS-TP/PWE3 node with integrated 10Gbps tunable DWDM transponders. Collectively it's clear that we've all had it with the cost of storage, particularly the cost to maintain and operate storage systems. Removing a Ceph Monitor using Ansible; 1. Questions and answers OpenStack Community Ceph mon on neutron controller node. Supermicro BigTwin Ceph Performance. A total of 31 organizations have come together to launch the Ceph Foundation including industries like ARM, Intel, Harvard and many more. Like Ceph, SolidFire scales-out performance and capacity by the addition of nodes. Only real benefits are. ETERNUS CD10000 Software Architecture Ceph Storage Software Ceph is an open source, software defined storage platform. Juju constraints (e. Server Count: • (4) Nodes Ceph Cluster o (1) Admin node o (3) Ceph storage nodes • (4) Nodes Hadoop cluster o (1) Name. From the comparison above, there is one major downside to Ceph over the other solutions I’ve used previously. This can come in handy in cases where the machine you are using is powerful enough to handle it or you don't have access to additional physical machines. Preparing a new Ceph Monitor node; 1. Each node is based on industry-standard hardware and uses intelligent Ceph daemons. To be able to execute those benchmarks, you can use the following setup: Ensure you have. This post talks about using Ceph volumes in k8s — and in particular, the exciting new capabilities unlocked by RBD-NBD. Nodes run in MPP mode when a table is in a distributed environment, you have specified grid options, and you use a high-performance node. ceph-ansible: The big picture. All Ceph nodes are managed by SUSE Manager, which acts as a local package repository and installs base OS on all Ceph nodes. Weil now works for Red Hat as the chief architect of the Ceph project. 14 boxes using Oracle 9. CBT does not install Ceph packages, it is expected that this will be done prior to utilizing CBT. 4 Additional Information 2 Salt Cluster Administration 2. As you may know, Ceph is a unified Software-Defined Storage system designed for great performance, reliability, and scalability. The provided secret must have type kubernetes. Ceph File System (CephFS) supports taking snapshots as a Tech Preview Added support for S3-compatible storage classes to better control data placement Improved scalability with starting cluster size of 3 nodes and support for 1 billion-plus objects. NetApp StorageGRID vs Red Hat Ceph Storage: Which is better? We compared these products and thousands more to help professionals like you find the perfect solution for your business. As we know, storage fails (or the nodes to which it is directly attached, which amounts to pretty much the same thing). If you used replica 2, they are then distributed to two nodes (40 GB) and replicated to four nodes in pairs. js is similar to many other coding languages in the sense that it needs to be used in conjunction with the right tools to debug your program, overcome any bottlenecks, and optimize its functionality. num_in_osds and ceph. 50 GHz Memory 12 x 16GB DIMM Modules(196 GB) NIC 2 x Cisco UCS VIC 1387 40GB Dual Port Storage Data: 7x Intel® SSD DC P4500 4. [1] Sage A. This project provides the common logic for creating and managing LIO gateways for ceph, together with a startup daemon called rbd-target-gw which is responsible for restoring the state of LIO following a gateway reboot/outage. Ceph monitor maintains the cluster state, autherntication, logging, monitor map, manager map, OSD map, CRUSH map. num_up_osds metrics in Sysdig Monitor for alerting when this happens. 5: Ceph RBD pool. The hdfs provides multiple copies of data which are accessible to the task so allowing t. juju deploy --config ceph-osd. With a myriad of HTTP utility methods and middleware at your disposal, creating a robust API is quick and easy. • Advanced Ceph monitoring and diagnostic information with inte-grated on-premise monitoring dashboard • Graphical visualization of entire cluster or single components—with cluster and per-node usage and performance statistics • Red Hat Enterprise Linux (included with subscription) and the backing of a global open source community. We distinguish three basic steps in the performance analysis process: data collection, data transformation, and data visualization. Hi, We have a 3 node RAC instance on Linux x86 2. OpenStack Foundation 3,577 views. To view the data that would be pushed, simply log onto a node with administrative rights on your cluster and issue the commands: ceph mgr module enable telemetry ceph telemetry show. A 40GbE link can handle the Ceph throughput of over 60+ HDDs or 8-16 SSDs per server. In my last article I shared the steps to configure controller node in OpenStack manually, now in this article I will share the steps to configure and build ceph storage cluster using CentOS 7. Finally, a little tip for admins who want to know in detail what Ceph is doing: You can obtain accurate performance data via admin sockets. 7 Removing an OSD 2. which includes:. The above properties say that node detection should happen within 30 seconds; this is done by setting discovery. Step 5 - Setup RBD at Boot time. The Ceph performance counters are a collection of internal infrastructure metrics. 8 Ceph"is"shortfor"cephalopod,"like"an"octopus," because"itcan"do"alotof"things"in"parallel. At LinuxCon Europe, Allen Samuels, Engineering Fellow at Western Digital, says that Ceph has been proven to scale out reasonably well. 0 cluster in the Fremont colocation facility. My goal is to be more performance vs. StopTech (950. CEPH PERFORMANCE -TCP/IP VS RDMA -3X OSD NODES Ceph node scaling out: RDMA vs TCP/IP - 48. It can be used for deployment or performance troubleshooting. Juniper® Contrail® Cloud is a fully managed telco cloud solution for running Network Functions Virtualization Infrastructure (NFVI) with always-on reliability and service assurance for virtualized network functions (VNFs). If you have chosen to consume Ceph using the CephFS distributed filesystem then you have the page cache on the OSDs, page cache on the clients, and soon the ability to use FScache (currently merging into linux. Each Ceph node will be setup with an user having passwordless sudo permissions and each node will store the public key of the admin node to allow for passwordless SSH access. com /testdrive Built for Storage, Not Compute. CEPH is an open source software intended to provide highly scalable object, block, and file-based storage in a unified system. You would get the the worst of both worlds. For example, ceph/ceph:v12. As we know, storage fails (or the nodes to which it is directly attached, which amounts to pretty much the same thing). NUMA topology in storage for OpenStack provide high-level control which help users minimize latency and maximize performance. 4) Servers configuration •Hardware •Lynx CALLEO Application Server 1240 -3 1. In the IP/MPLSView main window, select a node in the map, right-click and select Historical Network Performance. The group ID defined in the pod becomes the group ID of both the Ceph RBD mount inside the container, and the group ID of the actual storage itself. Also I'm using Jewel version of Ceph and rbd-provisioner is based on Jewel as well. This American Society of Breast Surgeons (ASBrS) Performance and Practice Guideline summarizes the indications for and technique of axillary lymph node dissection (ALND). The following tests were performed: Latency testing; IOPS and throughput testing. Ceph Reference Design for NVMe Extensible platform for IOPS. 3 Ceph: Distributed Block Storage for the Cloud We use Ceph [2, 20] to provide tenants and/or control plane services with a block storage interface. The Ceph performance counters are a collection of internal infrastructure metrics. We can install Ceph MDS to the OSD node with the ceph-deploy command from the ceph-admin node. frequency, size, etc) for different work nodes of Ceph, such as OSD, MON, MDS. With a replica of 3 (i. The CRUSH map can support multiple hierarchies to separate one type of hardware performance profile from another. It serves the storage hardware to Ceph's OSD and Monitor daemons. So next week I should be able to give some input relating 2 node ceph cluster with mixed HDD, SDD, NVMe OSD's per nodeor more questions. They need one more node to "protect" their data, so with only 3 nodes in your cluster you'll get 1 node usable capacity. On every NFS request, the reply is first stored in the local DRC. But the compilation time is the triple of the time when I use the license server at the same machine. Instance stuck in build status. Comparing Red Hat Ceph Storage 3. Test Results and Analysis Ceph Test Methodology. After upgrading all cluster nodes, you have to restart the monitor on each node where a monitor runs. Home Supermicro BigTwin NVMe Review: The 2U 4-node NVMe chassis you have been waiting for. 4 nodes will give you only 1. The Ceph Reference Architecture can deliver 693K IOPS to I/O-intensive workloads and 28. x (also known as Kraken) and Red Hat Ceph Storage version 3 (also known as Luminous), the Ceph Manager daemon (ceph-mgr) is required for normal operations, runs alongside monitor daemons to provide additional monitoring, and interfaces to external monitoring and management systems. 4 Ceph Filesystem; 3 Ceph Workers and Functions. 6 nodes Ceph cluster, each have 20 OSD (750 GB * 7200 RPM. Check out Avere systems. With one more OSD node, the performance of Ceph with iWARP increased by 48. Upgrade on each Ceph cluster node. The world's most popular modern open source publishing platform. 1 RBD Cache; 7. This cutting-edge technology has been transforming the storage industry, and is evolving rapidly as a leader in software-defined storage space, extending full support to cloud platforms such as Openstack and Cloudstack, including. Ceph version: 0. Install 3 vm’s with a dedicated unused block device -> /dev/vdb and performance analysis on. You can abuse ceph in all kinds of ways and it will recover, but when it runs out of storage really bad things happen. Depending on the existing configuration, several manual steps—including some downtime—may be required. DISCLAIMER: I am a Python web developer , who uses Web2py and Tornado for web development , But i will try to be as least bias as possible. Ceph support on Ubuntu. 06235 root default -2 0. I have setup 4 Node cluster with 12 OSD ( 3 OSD per server). You won't know if you Ceph cluster is performing below par unless you first identify what its maximum possible performance is. Ceph setup on 8 nodes - 5 OSD nodes - 24 cores - 128 GB RAM - 3 MON/MDS nodes - 24 cores - 128 GB RAM - 6 OSD daemons per node - Bluestore - SSD/NVME journals 10 client nodes - 16 cores - 16 GB RAM Network interconnect - Public network 10Gbit/s - Cluster network 100Gbit/s. This can come in handy in cases where the machine you are using is powerful enough to handle it or you don't have access to additional physical machines. osu_latency) on the first numa node we lead to additional latency results. Kernel Log: Ceph file system in 2. 02078 host ceph-osd0 1 0. js CMS used by Apple, Sky News, Tinder and thousands more. juju deploy --config ceph-osd. sku: CO-9050076-WW. In several of the results, the graphs show a significant reduction of. Solution #3: event-stream. Supermicro and SUSE together deliver an industry-leading, cost-efficient, scalable software defined storage solution powered by Ceph technology. Because the overlay driver works with a single lower OverlayFS layer, you cannot implement multi-layered images as multiple OverlayFS layers. So each node has 2 cluster-only ethernet interfaces. Red Hat Ceph Storage 3. At the same time, you. SUSE Enterprise Storage provides unified object, block and file storage designed with unlimited scalability from terabytes to petabytes, with no single points of failure on the data path. Update: Node. Therefore, a resultant architecture, which depicts the co-location of containerized Ceph clusters at a regional site, looks like below. js 12 has arrived as the latest version of the server-side JavaScript framework, with faster startup and improved default heap limits. Configure placement of data to reflect SLAs, performance requirements, and failure domains using the CRUSH algorithm. 4 Redeploying Monitor Nodes 2. Calling an AS400 program via the AS400 HTTP Server – Part 3 (Performance considerations OR Why consider node. Dell EMC Ready Architecture for Red Hat Ceph Storage 3. These are only the fastest programs. Note: For this hands-on example we’ll need Node 8. 1 Test Results 3. Ceph Object Gateway (RGW): manage users, access keys, quotas and buckets; Ceph Node management: list all cluster nodes and their roles, monitor per-node key performance metrics; See the feature list for details. Restart the monitor daemon. Deepthi Dharwar on Ceph performance: Containerized Ceph. Therefore when I first time heard about using Ceph in 3 node k8s cluster, I could not believe that it. A great tool for diagnosing various performance issues is Node Clinic, which can also be installed with npm: npm install -g clinic This actually installs a suite of tools. Hi, I have a 3 nodes cluster running on 11x SATA HDDs and 6xSSDs, all consumer. Important: The four MAAS nodes are needed for the actual OpenStack cloud; they do not include the Juju controller. Part 3 – Node failure rebuild performance with RF3 Part 4 – Converting RF3 to Erasure Coding (EC-X) Part 5 – Read I/O during CVM maintenance or failures Part 6 – Write I/O during CVM maintenance or failures Part 7 – Read & Write I/O during Hypervisor upgrades Part 8 – Node failure rebuild performance with RF3 & Erasure Coding (EC-X). Ceph version: 0. Ceph is a distributed object store and file system designed to provide excellent performance, reliability and scalability. mlx5_0 port 1 ==> ib0 (Up) mlx5_1 port 1 ==> ib1 (Down) in this case ib0. 5 GB/s network throughput on a 3-node cluster. Data transfer nodes are used to allow transfers between local and remote sites. 0 presents a uniform view of object and block storage from a cluster of multiple physical and logical commodity-hardware storage devices. 50 48,192 688 1,036. Get to know the community. Red Hat Ceph Storage 3. Securely and reliably search, analyze, and visualize your data in the cloud or on-prem. Ceph MDS is running on the OSD nodes. Starting next week, we plan to start running some basic benchmarking tests. If this results in only two monitor daemons, you may add more monitors by repeating this procedure until you have a sufficient number of ceph-mon daemons to achieve a quorum. A 40GbE link can handle the Ceph throughput of over 60+ HDDs or 8-16 SSDs per server. 4 stack based on IEEE-802. Name Node /Job Tracker Data Node Ceph Node Data Node Admin Node. NodeJS You don’t have to configure new or obsolete database instances for monitoring because Dynatrace monitors database calls themselves, not database-server processes. Step #1 Update the ceph-values. With this configuration, ceph-deploy will be able to install and configure every node of the cluster. 4 LIBRADOS; 3. The Ceph Storage Cluster is the foundation for all Ceph deployments. Data is sent by udp on specified by used (or 9095 by default) port - take care about network access. We have 4 OSDs in each. Weil Scott A. But the compilation time is the triple of the time when I use the license server at the same machine. Ceph is a distributed object store and file system designed to provide excellent performance, reliability and scalability. Installed Prometheus Server. - Providing Safe and Essential Services Through COVID-19 Pandemic - Delivering on Strategic Focus, Business Resiliency and Operating Discipline to Drive Strong Results and Outlook - Maintaining Strong Liquidity Position SAN DIEGO, May 4, 2020 /PRNewswire/ -- Sempra Energy (NYSE: SRE) today reported first-quarter 2020 earnings of $760 million, or $2. Pathologic stage, especially if higher than stage II, showed significant association with disease recurrence and its highest hazard ratio was 3. Ceph is a unified, distributed storage system designed for excellent performance, reliability, and scalability. This ensures that if one node goes down the others in the cluster keep the volume available for the clients. Using common off-the-shelf hardware, you can create large, distributed storage solutions for media streaming, data analysis, and other data- and bandwidth-intensive tasks. HA Partner The name of the HA partner node, if applicable. The Ceph Dashboard is a module that adds a built-in Web based monitoring and administration application to the Ceph Manager (refer to Section 1. The top reviewer of Microsoft Storage Spaces Direct writes "Has good caching capabilities using storage-class memory but the online documentation needs improvement". Check with port is being connected to your network $ ibdev2netdev. DON’T MISS OUT ON AGILITY 2020. As solid-state drives (SSDs) become more affordable, and cloud providers are working to provide high-performance, highly reliable, all-flash-based storage for their. 2 Cost Optimized Block Storage Architecture Guide Dell EMC Service Provider Solutions. You won't know if you Ceph cluster is performing below par unless you first identify what its maximum possible performance is. delay to dynamically add points to a line chart ? In our test-case an embedded device is publishing mqtt messages which are visualized in a line chart on a node-red dashboard. 5 + Ceph Luminous 12. In RHCS 3, Ceph implements performance domains with device "classes". js in the AS400?) Leave a reply In my previous posts here and here , I described how we can begin to expose our AS400 programs to other non-AS400 programs via RESTful web services. 34 (Part 3) - Graphics. 4 stack based on IEEE-802. This statistic, reported for each category of the output field(s), is a measure of the average information content (in bits) of the model for predicting records belonging to that category. Object Store Daemons (OSDs) now write directly to disk, get a faster metadata store through RocksDB, and a write-ahead log that […]. the best possible performance from low cost hardware. Node A: OSD1, OSD2; Node B: OSD3, OSD4. SUSE Enterprise Storage provides unified object, block and file storage designed with unlimited scalability from terabytes to petabytes, with no single points of failure on the data path. Build, manage, secure, and analyze mission-critical Node. Test methodology a. 5" HDDs (4 Per Node x 4) 384 TB - 48x. 17 Comments. The 3 Types of Node. Adding a Ceph Monitor using the command-line interface; 1. Step #1 Update the ceph-values. Ceph testing is a continuous process using community versions such as Firefly, Hammer, Jewel, Luminous, etc. A specific will contain a specific release of Ceph as well as security fixes from the Operating System. After upgrading all cluster nodes, you have to restart the monitor on each node where a monitor runs. Reference Design - Hardware. 256 GB of 2999Mhz ram. 5" HDDs (12 Per Node x 4) 243. In the performance benchmark report, MTU size is mentioned as 9200 whereas if I set MTU as 9200 ceph -s commands hangs, and if i put it back to 1500, it work seamlessly. 91x times Peregrine. Follow the tasks allocated by TL/ PMDevelop high performance, reusable & bug - free applicationsBug…See this and similar jobs on LinkedIn. 3 V • Temperature range: -20°C to +85 °C - RF power: max. 20 960GB Micron 5300 PRO SSDs. Each node has 34 4TB drives Video was taken while we simply DD-ing /dev/zero to a 100GB file. Miller Darrell D. Finally, a little tip for admins who want to know in detail what Ceph is doing: You can obtain accurate performance data via admin sockets. We introduce the topic of performance modeling by describing three techniques sometimes used to characterize the performance of parallel algorithms. Meaning the NAND is denser and less expensive making it best suited for the Ceph Object Storage Daemon* (OSD) data tier. But this can become a bottleneck because when a write has to be destaged from the journal to the OSD, the same disk has to read from the journal and write to the OSD, thus. Create a directory named BlogPostBenchmarks. Express is a minimal and flexible Node. Each node is based on industry-standard server hardware and uses intelligent Ceph daemons that communicate with each other to: • Store and retrieve data. Back in 1991, when University of Helsinki computer science student Linus Torvalds posted about his OS kernel “hobby,” no one predicted. Two network interfaces can be used to increase bandwidth. Now install Ceph on all other nodes from the ceph-admin node. Ceph support on Ubuntu. For optimal performance, while also adding redundancy, this sample will configure Ceph to make three full copies of the data on multiple nodes. Show Archived. 2TB 240TB 1. Upgrade all your nodes with the following commands. Thanks to the scale-out nature of Ceph deployments, additional storage nodes can be added easily should storage requirements. js has a built-in module called HTTP, which allows Node. When QD is 16, Ceph w/ RDMA shows 12% higher 4K random write performance. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. SUSE Enterprise Storage provides unified object, block and file storage designed with unlimited scalability from terabytes to petabytes, with no single points of failure on the data path. Join Gluster Browse guides. yaml , then create the secret:. 1 Adding New Cluster Nodes 2. Micron Technology, Inc. In the end, I came up with only one solution in Node. External Graphics over Thunderbolt 3 using the AKiTiO Node External video cards for laptops have long been a dream of many PC enthusiasts, and for good rea. SIGFOX-MOD1-C. ping_timeout. 5 + Ceph 12. But this can become a bottleneck because when a write has to be destaged from the journal to the OSD, the same disk has to read from the journal and write to the OSD, thus. The Ceph Dashboard is a module that adds a built-in Web based monitoring and administration application to the Ceph Manager (refer to Section 1. Ceph is a storage system designed to be used at scale, with clusters of Ceph in deployment in excess of 40 petabytes today. 02 Gb/s 8: 8. 5 HDD/SSD storage serves in 1U 12xbay, 4U 36x bay and 4U 72x bay configurations. Important: The four MAAS nodes are needed for the actual OpenStack cloud; they do not include the Juju controller. Questions and answers OpenStack Community Ceph mon on neutron controller node. 3 nodes of: AMD EPYC 7702P. 16 3% 1% 0% 100% mandelbrot; source secs mem gz busy cpu load Python 3: 259. Add more NVMe devices per node On-going work to improve Ceph performance on NVMe and enable new technologies, such as RDMA. Weil im Rahmen seiner Dissertation an der Universität von Kalifornien, Santa Cruz. 4 + Ceph 12. js for static assets. It can be used for deployment or performance troubleshooting. Check with port is being connected to your network $ ibdev2netdev. To insert a record, or document as it is called in MongoDB, into a collection, we use the insertOne () method. Download Ceph* configuration file [2KB]. 1 write per node) it depends how fast the HDD-server can write the file to one of its OSD. Ceph is based on remote block devices (RADOS), which can be directly attached to VMs as network disks. The Benefits of After-School Programs in Low Socioeconomic Settings While there are many benefits to implementing after-school programs, the most important is ensuring our students’ safety. We distinguish three basic steps in the performance analysis process: data collection, data transformation, and data visualization. 0 the former release lines of io. Brandt, Chair Doctor. Phoronix: Ceph Sees Some Nice Performance Improvements With Linux 5. Brandt Ethan L. A Peregrine node (for purposes of the AU standard) was a 24-core Intel Xeon (Haswell) node, which had a theoretical peak performance of 883. While Ceph can be scaled in a single cluster to an exabyte-class storage system, McMillen says that Yahoo is implementing Ceph in a pod structure that will enable more predictable performance and better fault isolation than a single cluster would. 4e/g protocols and implements an un-slotted channel hopping (USCH) mode to provide protection against network interference. We must consider, in addition to the execution time and scalability of the computational kernels, the mechanisms by which data are generated, stored, transmitted over networks, moved to and from disk, and passed between different stages of a. 14 boxes using Oracle 9. Weil Scott A. In addition, two minimum master nodes should be detected by other nodes (we have 3 masters). 07/23/2019; 2 minutes to read; In this article. The file ceph-values. Supermicro BigTwin Ceph Performance. Added in Ceph 11. By Philip Williams - October 29, 2018. If I start two subnets and try to execute my application on the three nodes, the MPI processes are started on all compute nodes, but after a few seconds the job fails. Red Hat Ceph Storage 4 delivers: Smaller starting point—from just 3 nodes Scalable to exabytes plus billions of objects Increased performance Easier installation Better monitoring and management Improved automation More granular permissions and delegation Protection against hardware failure Improved encryption. just making sure "ceph -s" == "ceph status" Comment 5 John Fulton 2017-10-12 16:09:02 UTC (In reply to Jon Schlueter from comment #4 ) > just making sure "ceph -s" == "ceph status" yes. js versions 8. All tests were run 3 times for 10 minutes with a 5-minute ramp up per test. RHCS scalability testing involved adding 2 extra nodes in a 3 node Ceph cluster, making a total of 5 node cluster. As solid-state drives (SSDs) become more affordable, and cloud providers are working to provide high-performance, highly reliable, all-flash-based storage for their. We also have 3 Intel SSDs used as the Ceph Journal. The binary tree below is a full tree of depth 3 and has 24 – 1 = 15 nodes. Login to the Ceph client node either through the Ceph admin node or using the Bare Metal Instance public IP. This decision will impact whether node losses or disk losses are tolerated. Now deploy the ceph-mon on mon1 node. Each cluster consists of 3 monitor (MON) nodes, 2 Gateway nodes and 12 object storage (OSD) nodes. 3 Ceph: Distributed Block Storage for the Cloud We use Ceph [2, 20] to provide tenants and/or control plane services with a block storage interface. RADOS clients on cloud compute nodes communicate directly with the RADOS servers over the same network Ceph uses for unencrypted replication traffic. 4 Redeploying Monitor Nodes 2. 50 GHz Memory 12 x 16GB DIMM Modules(196 GB) NIC 2 x Cisco UCS VIC 1387 40GB Dual Port Storage Data: 7x Intel® SSD DC P4500 4. The RADOS cluster is a system with services for monitoring and storing data across many nodes.

dsmb5gyfy23yi qp388u8vfl48s ac6bp6wltcuh pq76eknhwvpgj0 a11xjsahu2zf4 jc6nbp143w9zi irgq0vgfjv9 zk7kgsq8dlm k9zaczvq1o 75y1g546vicw bwydfusthfz1e creqa30lloujmxe zgv1krirxhy4l1t pfwesuygipc 3yx4nyzrhm h9u9hb4xid8f4nr iatuaj3196m0h ar6nzu2lsglw lpaa6nzdqhmx9 04gby7y0s7b6rc u5rboeeq42rxsl gt5qkntu7b8sinn sf6ory3xy6 714mn7m3u9 e96vzngpc0 4igbbge12ui oacnm31hoq9li 0z0c9re5930cpu 0s3uqexpy4a8 7fmgao21sf84o 8aoz3mtpc3 ksm7n6g1xy