NetAPP集群存儲(chǔ)技術(shù)

1、Tag line, tag lineNetAppDataOntap 8.1Fang Y 2008 NetApp. All rights reserved.傳統(tǒng)IT系統(tǒng)的數(shù)據(jù)存儲(chǔ)挑戰(zhàn)2NetApp 機(jī)密 使用受限IT 預(yù)算存儲(chǔ)成本數(shù)據(jù)增長(zhǎng)管理成本 在線數(shù)據(jù)爆炸式增長(zhǎng) 存儲(chǔ)基礎(chǔ)架構(gòu)復(fù)雜性 存儲(chǔ)架構(gòu)不靈活 提高員工工作效率 利用有限的預(yù)算滿足 SLA基礎(chǔ)架構(gòu)差距服務(wù)差距 2008 NetApp. All rights reserved.傳統(tǒng)存儲(chǔ)基礎(chǔ)架構(gòu) 跟不上用戶業(yè)務(wù)需求的變化 不靈活的容量孤島，利用率低 大規(guī)模擴(kuò)展非常復(fù)雜Windows 性能瓶頸 可用性不足Linux 集群UNIX未來(lái) 3NetA

2、pp 機(jī)密 使用受限 2008 NetApp. All rights reserved.NetApp集群存儲(chǔ)系統(tǒng)DataOntap 8.1 Cluster Mode利用V-Series虛擬化的第三方存儲(chǔ)系統(tǒng)NetApp FAS系列存儲(chǔ)系統(tǒng)NetApp Confidential Limited Use單套集群存儲(chǔ)系統(tǒng)最大支持24個(gè)高性能存儲(chǔ)節(jié)點(diǎn)支持NetApp FAS系列控制器和V系列控制器，支持不同控制器的混合使用單套集群存儲(chǔ)系統(tǒng)最大支持容量可達(dá)1PB提供Multi-GB 2008 NetApp. All rights reserved.NetApp DataOntap 8.1 Cluster

3、 Mode業(yè)界第一套真正意義上的統(tǒng)一集群存儲(chǔ)系統(tǒng)擴(kuò)展能力擴(kuò)展能力性能擴(kuò)展能力容量擴(kuò)展能力操作擴(kuò)展能力集成的高效存儲(chǔ)技術(shù)集成的高效存儲(chǔ)技術(shù)重復(fù)數(shù)據(jù)刪除數(shù)據(jù)壓縮存儲(chǔ)空間動(dòng)態(tài)精簡(jiǎn)分配基于指針的克隆FCFCoEiSCSICIFSNFSpNFS協(xié)議支持協(xié)議支持Nondisruptive Operations(在線操作能力）集中統(tǒng)一管理安全的多租戶環(huán)境板載防病毒功能Flash Cache大緩存卡SSD盤FC/SAS/SATA盤數(shù)據(jù)快照負(fù)載分擔(dān)數(shù)據(jù)鏡像異步數(shù)據(jù)遠(yuǎn)程復(fù)制支持的存儲(chǔ)介質(zhì)集成的全方位數(shù)據(jù)保護(hù)技術(shù)CommonSoftwareCommonSystemsCommonManagementNetApp Co

4、nfidential Limited Use管理和安全控制 2008 NetApp. All rights reserved.DataOntap 8.1 Cluster Mode三個(gè)不同功能的網(wǎng)絡(luò)數(shù)據(jù)網(wǎng)絡(luò)SAN/NAS管理網(wǎng)絡(luò)管理網(wǎng)絡(luò)集群節(jié)點(diǎn)互連網(wǎng)絡(luò)集群節(jié)點(diǎn)互連網(wǎng)絡(luò)10GbEHAHADataOntap 8.1 Cluster-Mode 集群存儲(chǔ)系統(tǒng)NetApp Confidential Limited Use 2008 NetApp. All rights reserved.VS1NetApp DataOntap 8.1 Cluster Mode Vserver介紹 VServer為在NetA

5、pp集群存儲(chǔ)系統(tǒng)上創(chuàng)建的一個(gè)邏輯存儲(chǔ)系統(tǒng)，由Flexvol卷、LUNs和邏輯網(wǎng)絡(luò)接口（LIFs)組成 前端所有的數(shù)據(jù)訪問(wèn)均通過(guò)Vserver來(lái)進(jìn)行，Vserver能同時(shí)支持不同的數(shù)據(jù)訪問(wèn)協(xié)議 一套集群存儲(chǔ)系統(tǒng)至少配置一個(gè)Vserver,最多能配置100個(gè)Vserver NAS Namespce和LUNs均以Vserver為邊界SAN hosts/NAS clients Integrated Shared Architecture Logical InterfacesFlexVol volumesVserverLIF2LIF1HANetApp Confidential Limited Use 2

6、008 NetApp. All rights reserved.Vserver實(shí)現(xiàn)安全多租戶環(huán)境VS2SAN hosts/NAS clientsHALIF2LIF3LIF4LIF2LIF1LIF1VS1HANetApp Confidential Limited Use 2008 NetApp. All rights reserved.HAVserver的擴(kuò)展SAN hosts/NAS clientsLIF2LIF1LIF3LIF4VS1HANetApp Confidential Limited Use 2008 NetApp. All rights reserved.兩種數(shù)據(jù)訪問(wèn)模式:本地訪問(wèn)

7、和遠(yuǎn)程訪問(wèn)NetApp Confidential Limited UseData NetworkClusterInterconnectA2A1A3B1B2HA PairA 2008 NetApp. All rights reserved.NetApp DataOntap 8.1 Cluster Mode在線操作功能（NDO）介紹NetApp Confidential Limited Use 2008 NetApp. All rights reserved.NetApp DataOntap 8.1 Cluster Mode在線操作功能（NDO）Vol MoveLIF Migrate andLoa

8、d BalancingHigh Availability(SFO/LIF failover)NondisruptiveUpgradesNetApp Confidential Limited UseNondisruptive Operations 2008 NetApp. All rights reserved. BCA2A3 C1A1 B1 B2ARC2LUNLUNLUNABC A1 A2A3B1B2 C1RLUNLUN不影響數(shù)據(jù)正常訪問(wèn)不影響數(shù)據(jù)正常訪問(wèn)不影響主機(jī)對(duì)數(shù)據(jù)的正常訪問(wèn)后臺(tái)利用snapshot功能進(jìn)行數(shù)據(jù)復(fù)制在集群存儲(chǔ)系統(tǒng)的任何aggregate之間實(shí)現(xiàn)volume的在線遷移被遷移

9、的volume原有的空間精簡(jiǎn)、鏡像或復(fù)制關(guān)系、數(shù)據(jù)快照均保持不變NFS / CIFS / iSCSI /FC / FCoEHAHANetApp Confidential Limited UseNetApp DataOntap 8.1 Cluster Mode在線volume遷移 2008 NetApp. All rights reserved.Volume在線遷移可實(shí)現(xiàn)A1C1LUNLUN B2ABA1 A3R CLUN B1C1LUNLUNAA2按需擴(kuò)容和負(fù)載均衡化數(shù)據(jù)層次化存儲(chǔ)高性能存儲(chǔ)高性能存儲(chǔ)廉價(jià)存儲(chǔ)廉價(jià)存儲(chǔ)C1LUNLUN B2ABA1 A3R CLUNA2 B1硬件在線升級(jí) B2A

10、BA1 A3R CLUNA2 B1C1LUNLUN 2008 NetApp. All rights reserved.邏輯接口（LIF）的在線遷移邏輯接口可以在線的遷移至集群內(nèi)的任何一個(gè)物理端口上HAHALIF2LIF2LIF3LIF3LIF4LIF4LIF1LIF1不影響前端主機(jī)的數(shù)據(jù)正常訪問(wèn)NetApp Confidential Limited Use 2008 NetApp. All rights reserved.更好的實(shí)現(xiàn)前端主機(jī)數(shù)據(jù)訪問(wèn)的負(fù)載均衡 LIFs 并不是永久和一個(gè)物理端口綁定，可以在物理端口之間進(jìn)行在線遷移 兩種實(shí)現(xiàn)LIF負(fù)載均衡的選項(xiàng) 在增加新主機(jī)時(shí)，利用DNS loo

11、kup為新主機(jī)指定負(fù)載最輕的LIF進(jìn)行數(shù)據(jù)訪問(wèn) 利用LIF在線遷移，在各個(gè)節(jié)點(diǎn)間進(jìn)行負(fù)載重新分布，實(shí)現(xiàn)更均衡的負(fù)載分布Average Network Load on the NodeNetwork Demand on an IP AddressNetApp Confidential Limited Use 2008 NetApp. All rights reserved.高可靠性（HA）Active-Active HA PairActive-Active HA PairNetApp Confidential Limited Use 2008 NetApp. All rights reserve

12、d.在線的Firmware升級(jí)（Rolling方式）Rolling upgrade 最多可以同時(shí)對(duì)多達(dá)三分之一的節(jié)點(diǎn)同時(shí)進(jìn)行Firmware的升級(jí)整個(gè)集群存儲(chǔ)系統(tǒng)的Firmware升級(jí)成功NetApp Confidential Limited Use 2008 NetApp. All rights reserved.NetApp DataOntap 8.1 Cluster Mode多協(xié)議統(tǒng)一支持介紹NetApp Confidential Limited Use 2008 NetApp. All rights reserved. 目前SAN架構(gòu)最大支持4節(jié)點(diǎn),未來(lái)會(huì)擴(kuò)展 主機(jī)利用多路徑軟件來(lái)實(shí)現(xiàn)

13、LUN的訪問(wèn) 主機(jī)利用ALUA功能來(lái)確認(rèn)數(shù)據(jù)訪問(wèn)路徑的狀態(tài) Active/optimized: the LIF configured on a port on a controller that also owns the aggregate on which the LUN is provisioned Active/unoptimized: the LIF is configured on a port on controller that does not own the aggregate on which the LUN is provisionedNetApp Confidenti

14、al Limited UseNetApp DataOntap 8.1 Cluster ModeSAN架構(gòu)下的數(shù)據(jù)訪問(wèn) 2008 NetApp. All rights reserved.MPIOALUAActiveOptimizedAA1ALUA path state changes for LUNs Paths to a volumes new physical location are active/optimizedActiveNonoptimizedActiveNonoptimizedActiveNonoptimizedActiveNonoptimizedALUA sends a pat

15、h update SCSI command down moved LUN pathsActiveOptimizedNetApp Confidential Limited UseNetApp DataOntap 8.1 Cluster ModeSAN架構(gòu)下的數(shù)據(jù)訪問(wèn)路徑狀態(tài)的自動(dòng)改變 2008 NetApp. All rights reserved. 當(dāng)volume在線遷移時(shí)，namespace保持不變 不需要客戶端代碼支持 易于管理 易于改變 可以無(wú)縫在線擴(kuò)展至PB級(jí) 通過(guò)單個(gè)NFS mount或CIFS share就可以訪問(wèn)整個(gè)namespace BA2A3A1 B1 B2ARCA4Sing

16、le NFS mount/CIFS shareAB A1 A2 A3B1 B2RCA4NetApp Confidential Limited UseNetApp DataOntap 8.1 Cluster ModeNAS架構(gòu)下的NamespaceNamespace 2008 NetApp. All rights reserved. 完全支持 NFS V2和V3，建議優(yōu)先選用NFS V3 支持NFSv4 支持pNFS，目前主機(jī)端只支持RHEL6.2NetApp Confidential Limited UseNetApp DataOntap 8.1 Cluster ModeNFS協(xié)議支持 200

17、8 NetApp. All rights reserved.客戶端訪問(wèn)一個(gè)文件，首先通過(guò)作為MetaData Server的節(jié)點(diǎn)查詢?cè)撐募奈恢眯畔A1A2B1B2C1ARVolume被在線遷移客戶端再次訪問(wèn)該文件A作為MetaData Server的節(jié)點(diǎn)更新該文件的位置信息，并把客戶端的文件訪問(wèn)重定向到新的節(jié)點(diǎn)作為MetaData Server的節(jié)點(diǎn)返回該文件的位置，客戶端的文件訪問(wèn)被重定向至文件所在的節(jié)點(diǎn)NetApp Confidential Limited UseNetApp DataOntap 8.1 Cluster ModepNFS下的數(shù)據(jù)訪問(wèn) 2008 NetApp. All r

18、ights reserved. SMB v1.0 and 2.0 SMB v2.1 Compounding, leases, asynchronous messaging, durable handles Required for NDO Home directories Group policy Name mapping through RDB and LDAP Widelinks (DFS referrals) Security Microsoft Hi-Sec security SMB client signing Schannel MSRPC security for NETLOGON

19、 Authentication NTLM v1 NTLM v2 GSSAPI KerberosNetApp Confidential Limited UseNetApp DataOntap 8.1 Cluster ModeCIFS協(xié)議支持 2008 NetApp. All rights reserved.NetApp DataOntap 8.1 Cluster Mode內(nèi)置的數(shù)據(jù)保護(hù)和高效存儲(chǔ)技術(shù)介紹NetApp Confidential Limited Use 2008 NetApp. All rights reserved.Secondary ClusterRemoteData Cente

20、rPrimary ClusterMainData Center BCA2A3 C1A1 B1 B2ARC2LUNLUNLUN BCA2A3 C1A1 B1 B2ARC2LUNLUNLUNWAN 支持Intracluster and intercluster兩種選項(xiàng)的復(fù)制 目前只支持異步方式的卷級(jí)別復(fù)制 存儲(chǔ)空間精簡(jiǎn)特性被保留NetApp Confidential Limited UseNetApp DataOntap 8.1 Cluster ModeSnapmirror數(shù)據(jù)復(fù)制 2008 NetApp. All rights reserved. NAS架構(gòu)下的volume只讀鏡像 把客戶端的讀

21、負(fù)載分布到多個(gè)節(jié)點(diǎn)上，提升數(shù)據(jù)讀性能，并更好的實(shí)現(xiàn)了節(jié)點(diǎn)的負(fù)載均衡 對(duì)NAS Namespace透明，客戶端的讀負(fù)載會(huì)被自動(dòng)定向到合適的只讀鏡像volume上 定時(shí)的把所有的鏡像volume和原始volume進(jìn)行同步MMMMMNetApp Confidential Limited UseNetApp DataOntap 8.1 Cluster Mode實(shí)現(xiàn)讀負(fù)載分擔(dān)的volume鏡像功能 2008 NetApp. All rights reserved.HAHA 重復(fù)數(shù)據(jù)刪除 數(shù)據(jù)壓縮 基于指針的克隆 存儲(chǔ)空間動(dòng)態(tài)精簡(jiǎn)分配BA1A2B1B2C1ACR D D ACB2BeforeAfterBefore AfterUsedFre