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DS800-G25 Disk Array Pre-Sales Training. Storage Products Business Division. Introduction of DS800-G25 Product. 1. DS800-G25 Features. 2. DS800-G25 For Medium Data Center. Positioning Middle and high-end storage products, high performance storage platform for medium data centers
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DS800-G25 Disk Array Pre-Sales Training Storage Products Business Division
Introduction of DS800-G25 Product 1 DS800-G25 Features 2
DS800-G25 For Medium Data Center • Positioning • Middle and high-end storage products, high performance storage platform for medium data centers • Specifications • Dual controllers: 32GB or 64GB cache • Fourcontrollers: 128GB cache, support for dual-write data • Architecture • Intel storage processor • Up to 516 disks • PCI-E2.0, SAS2.0 technology • 1 / 10GE iSCSI, 8Gb FC host interface cards • Software Specification • RAID 2.0 technology, snapshot, local volume copy, remote volume mirror, thin provisioning, quad-controller cluster DS800-G25controller DS800-G25 3U16 Exp DS800-G25 2U25 Exp
DS800-G25 Next-Generation Architecture High-performance hardware technology Controller Architecture Design The most high-speed bus bandwidth technology, single channel bandwidth 5Gb, 16 channel bandwidth 80Gb Modular Host Interface
DS800-G25 Modular Redundancy Architecture • Modular redundancy design — The main components such as power supply, battery, fan, and main control board are designed with redundancy. • A-A Controllers — ALUA multipath mechanism — Support path redundancy and load balance • Dual SAS link — When a single link failure occurs, the path will be automatically switched fan battery Power supply modular components hard-disk cartridge interface card main control panel modular design • Cache Protection — cache mirror, power failure protection Fan controller machine frame power module host interface card main control panel
DS800-G25 Product Introduction 1 DS800-G25 Features 2 RAID 2.0 and SSD cache technology Symmetrical dual active technology Remote replication technology
DS800-G25 Active Disk Diagnostic Disk Diagnostic Disk Detection Error Repair Active prevention Quick Fix Double Diagnosis Repair mechanism • Disk repair: rewrite the error block to repair • Repair bad block: By remap and RAID mechanism to replace bad block • RAID rebuild: rebuild data by optimized techniques RAID 2.0 Detect mechanism • Periodic safety monitoring for hard disks • When find the problem, according to the error code to determine error type • Start the repair mechanism according to the error type Diagnostic function • Double disk detection: double detect to confirm whether the hard disk failure is resolved Target: To reduce 80% downtime caused by disk failure!
DS800-G25 RAID 2.0 Technology • Hard disk failure is a problem in the whole storage system. • Universal way to deal with in the industry: the RAID, but each RAID has significant shortcomings, how to solve? • RAID 2.0 technology hard disk 1 hard disk 2 hard disk 3 Hot Spare Customer value: Unitl • RAID 2.0 allows multiple disks medium error at the same time • Disk rebuild time is reduced by 80% … … … … No Data Data
DS800-G25 RAID 2.0 Technology RAID 2.0 unit : also called "cell", which is the basic unit of data and storage resource management Server Server Administrator Different units in accordance with the application of the performance and capacity needs to be combined into LUN LUN1 LUN0 LUN-Virtualization The RAID resource is divided into 1GB sub blocks, which are called unit Storage Pool is comprised by units Storage Pool 0 Storage Pool 1 Storage Pool and cells Tie0:SSDstorage Tie2: Low-speed SAS Tie1: High-speed SAS Tie0:SSDstorage Tie2: : Low-speed SAS RAIDResources RAID10 RAID5 RAID6 RAID10 RAID5 Disk Disk Disk Disk Disk Disk Disk Disk Disk Disk Disk Disk Disk Disk Disk Disk Physical storage resources … … Disk Disk Disk Disk Disk Disk Low-speed SAS SSD SSD Low-speed SAS High-speed SAS
DS800-G25 RAID 2.0 Technology RAID 2.0 technology Administrator Server The RAID resources are divided into sub-blocks 1GB LUN0 LUN-Virtualization Storage Pool 0 Storage Pool A single RAID group allows 3 disk failure (triple parity) Tie0:SSDstorage Tie2: Low-speed SAS Tie1 : High-speed SAS RAID resources Greatly improve the speed of disk rebuilt, reduce the risk of data loss RAID10 RAID5 RAID6 Disk Disk Disk Disk Disk Accurate data bad block early warning and handling mechanisms to reduce the risk of data loss Disk Disk Disk Disk Disk Physical storage resources … Disk Disk Disk SSD High-speed SAS Low-speed SAS
DS800-G25 SSD Cache Technology • The performance of the product is greatly improved by the SSD hard drive. • The random access performance of the product can be promoted by the SSD hard disk. • Increase MicrosoftSQLServer operating speed 3 times. • Increase OracleOLTP operating speed 3 times • Start 500 virtual desktops within 8 minutes. • The time to manage and tune Microsoft SQL Server is reduced by hours per week.
DS800-G25 SSD Cache Advantage First level cache performance improvement instance Second level cache performance improvement instance 1 TB Cache: 1GB 1 TB Cache: 20GB • The first level cache improve the performance by 40 times • 1GB cache: IOPS less than 3,800 • 20GB cache: IOPS over 150,000 • SSD Cache improve the performance by 25 times • Before enabled: IOPS less than 1,500 • After enabled: IOPS over 40,000
DS800-G25 VMware Performance Acceleration VMware ESXi & ESX Virtual SMP Enable hardware acceleration features, performance can be improved by 15 times • VAAI features support: full copy, block zeroing, scalable lock management • To accelerate the clone, migration, initialization of the virtual machine at the storage layer
High availability solution: dual active array • Dual active array solution: Use two storage arrays, and the data is mirrored, if one of the storage array fails, then switch to another storage array online. The RPO and RTO is 0 approximately.
High Availability: Dual Active Array • Solution description: • Two DS800-G25 storage with remote mirror features, to achieve the data mirroring. • Server can simultaneously see the main storage and mirrored storage. • When the primary storage is down, it automatically switches to the mirror storage. • Advantage: • Based on the storage without third-party software and hardware • The solution is simple, easy application system Kinds of application services mirror Production volume 1 Production volume 2 copies GE/10GE Primary Storage Target storage Applications: high availability for critical business
Difference between dual active and remote mirror of DS800-G25 Sugon dual active storage: automatic failover general way: manual failover server server parimary path backup path parimary path unified management heartbeat mirror mirror Production volume 1 Production volume 2 copies Production volume 1 Production volume 2 copies GE/10GE GE/10GE Primary Storage mirror storage Primary Storage mirror storage 1. Mirror volume can be seen, but can’t be written, when the primary storage fails, it automatically provides access 2. Server and mirror storage has pathes, when the primary storage fails, it can be switched in real time. 1. Mirror volume is not visible, it must be manually operated when to access 2. Server and mirror storage do not have access path, you must manually switch
Symmetric dual active solution Dual active storage Dual active data center Data Center B Data Center Data Center A RPO=0 RTO=0 Host A Host B Host A Host B Virtual volume Virtual volume Without any third party software and hardware mirror mirrored volume mirror Production volume Production volume mirrored volume 10GE 10GE synchronic distance Storage Engine A Storage Engine B Storage Engine A Storage Engine B
DS800-G25 dual active networking A schematic diagram of the mirror connection between the controllers Data Center Private network Storage Engine B Storage Engine A SP1 SP1 Host A Host B FC/iSCSI SP2 SP2 Production volume mirrored volume 10GE PCI-E Networking description: (1) The connection between the storage and the server can choose iSCSI, FC network. (2) The link between the dual storages is 10GE, each controller is configured with one dual port10GE IO interface card, 4 direct optical fiber with mesh connection. (3) The suggested link length (synchronization distance) is no more than 300M. (4) Mainly used for the interconnection within one data center, or dual active storage solution. mirror Production volume mirrored volume 10GE Storage Engine A Storage Engine B
Read and Write IO 读 Data Center Data Center Host A Host B Host A Host B Write Process FC/iSCSI FC/iSCSI Read Process Path A Path A Path B Path B Write IO mirrored volume Production volume Write IO Read IO Read IO mirrored volume Production volume Write IO Storage Engine A Storage Engine B Storage Engine A Storage Engine B mirror image IO Production volumes, mirror volumes can be received at the same time to write IO, the mirror volume of the IO request will be transmitted through the mirror channel to the main storage engine, complete the write operation. Production volumes, mirror volumes can be read at the same time in response to read and write IO.
Symmetric dual active failover process Data Center Primary engine failover process: Step 1: detect the failure of the storage engine A, start the storage switching. Step 2: mirrored volume is automatically promoted to production volumes. Step 3: the multipath software switch the path B to primary. Step 4: the application on the server will access the volume on the storage engine B. Host A Host B FC/iSCSI ⅹ Path A Path B ⅹ ⅹ mirror image mirrored volume Production volume 10GE Storage Engine A Storage Engine B When the primary engine fails, the business can failover in real time without affecting applications. 20
Symmetric dual active + replication / snapshot solution Data CenterA Data CenterB Host A Host B The two storages configured with symmetric dual active function, can also be enabled with replication/snapshot function, to achieve comprehensive data protection. Symmetric dual active: Storage controller level protection Replication / snapshot: Lun level protection FC/iSCSI Replication mirror Copying volume Production volume mirrored volume 10GE 10GE/GE Disk array C Storage Engine A Storage Engine B
Comprehensive protection of data Data protection response Natural disasters Virus effects hardware failure Human mistakes software failure Disaster Types Data center and disaster recovery center storage and data redundancy 44% hardware failures Data center or disaster recovery center for data protection CDP 49% software /human / virus fault 7% natural disaster Business disaster recovery center to take over and restore
Data protection comprehensive implementation 生产卷 A LAN WAN 快照 快照 快照 Logical failure countermeasures -- CDP continuous data protection Hardware failure countermeasures -- Storage and data redundancy Up to 512 images are protected X copying volume Production volume Data center or shared disaster recovery center Natural disaster countermeasures -- Take over the disaster recovery center business Data Center X Production volume copying volume X Data Center disaster recovery center Data Center disaster recovery center
Remote replication technology Production volume Copying volume LAN/WAN On-demand select data synchronization strategy Host New data block
Snapshot technology 1 1 1 2 2 2 2 3 3 3 10:00-10:59 9:00-9:59 4 4 4 5 5 5 6 6 6 6 7 7 7 7 8 8 8 9 9 9 Write new data block 10 10 10 11 11 11 12 12 12 Write new data block 10am 11am 9am 001 002 003 255 … Source Resources Automatically creates a snapshot Snapshot resource • Automatic continuous data snapshot • create the time point recordautomatically for the data volume according to the strategy • Quick recovery in a few seconds when a data loss or error occurs • 512 Data Images • Each volume can have 512 time point record. • Based on the incremental time point record, 1.2-2 space is allocated. • Snapshot resource pool dynamic extension • The snapshot resource pool is automatically increased, and the strategy and location can be set flexibly. The initial (not containing any data). Data Storage Block 2 6 7 2 6 7 9 10 9 10
Synchronous mirror technology Repllication volume Production volume • Applications • In close proximity or within the same city (low-latency links), remote and recovery disaster recovery storage zero data loss • Synchronous mirror between two disk array • Data is synchronously written to the primary storage and disaster recovery storage, the mirrored volume is one accurate and complete copy of the primary volume Host 1 Primary storage for the host returns successfully written confirmation signal 4 LAN/WAN Data blocks are written to the main memory 2 Data blocks are written to the backup copy volume 3 Return to the main storage in order to confirm the signal after writing success
One to one disaster recovery solution Mirror/Replication Primary site Disaster recovery site One-to-one disaster recovery mode • High / low product collocation, lower cost • Support IPV4, IPV6 • Flexible data synchronization strategy • Close sites, can be upgraded to dual active data center On-demand selection of data synchronization strategy
Disaster recovery solution of three centers in two cities Disaster recovery in different cities Three networking modes The best mode for disaster recovery Disaster recovery in the same city Production center synchronization asynchronization BHOP ( Mirror+Replication) Replication Mirror A: Production B: in the same city C: in different cities synchronization asynchronization BHOP (Replication) Replication Replication A: Production B: in the same city C: in different cities synchronization 1:2 ( Mirror + Replication ) Mirror B: in the same city asynchronization A: Production C: in different cities Replication • Disaster recovery in the same city : Provide application level data protection and recovery capability • Disaster recovery in different cities : Provide data level backup and recovery capability • No third party software and hardware, the storage array level to achieve the protection of three centers in two cities • Close to disaster recovery in the same city, can be upgraded to double active data center
many to one disaster recovery / shared disaster recovery solution • Distributed data center, centralized disaster recovery • 64: 1 DR : To support the disaster recovery capabilities of the 64 branch node on a central node • A variety of disaster grade : A branch node to reach the standard grade 3-5 of the disaster recovery strategy, nodes do not interfere with each other • Centralized and unified management : Through the IDSM to achieve a unified disaster recovery management WAN many to one disaster recovery / shared disaster recovery center site … Site 2 Site 1 • Best practice • The Chinese Academy of Sciences Center for cloud disaster recovery network : Across the 5 provinces of Chinese, Chinese largest shared disaster recovery cloud platform • Hubei finance shared disaster recovery : From 17 cities to the disaster recovery center, Hubei's largest shared disaster recovery platform Site N • Horizontal construction : Ministry / provincial / municipal governments share a unified disaster recovery • Vertical construction : Focus on disaster recovery large enterprises with many branches of the structure
Simple and easy to use - performance monitoring and alarm mode • Performance monitoring content: —Read and write IOPS —Read and write bandwidth — Read and write response time — CPU, storage usage • Alarm mode: — Indicator light alarm — Console alarm — Buzzer alarm — Mail alarm — SMS alarm ……
Simple and easy to use - management interface • Graphical User interface — Administrators can easily grasp, simple and easy to use • step - by -step configuration — Just click the mouse, you can complete the relevant configuration • centralized manegement — On the same management interface to manage multiple devices