打造更高可靠的存儲(chǔ)系統(tǒng)(完整版)
【正文】 pSerispDS8000 / 4000 HACMP Backup Server Active Server 方案二：磁盤間數(shù)據(jù)復(fù)制 21TotalStoragePrimary Copy Target Copy PPRC (Metro Mirror) SAN pSerisp21TotalStorage21TotalStorageSAN 方案二：磁盤間數(shù)據(jù)復(fù)制 業(yè)務(wù)價(jià)值 ? 100% 的本地?cái)?shù)據(jù)訪問彈性 ? 沒有受磁盤設(shè)備故障導(dǎo)致的應(yīng)用中斷時(shí)間，或應(yīng)用中斷時(shí)間最小化 ? 與遠(yuǎn)程災(zāi)備系統(tǒng)相輔相成 ? 方便易行的數(shù)據(jù)保護(hù)和故障恢復(fù)過程 IBM全面支持能力 ? 主機(jī)、存儲(chǔ)的技術(shù)配合 ? 多種結(jié)構(gòu)解決方案 ? 系統(tǒng)評(píng)估和規(guī)劃 ? 本地化的服務(wù)團(tuán)隊(duì) 本地高可用性解決方案 14 解決方案一：磁盤設(shè)備間數(shù)據(jù)鏡像 （ AIX LVM Mirror） 主機(jī) 主機(jī) 磁盤 1 磁盤 2 ?通過 LVM卷管理軟件實(shí)現(xiàn) ?磁盤 1故障時(shí)，磁盤 2不需要重新在主機(jī)上 mount，應(yīng)用無需中斷。v v Systems amp。真正實(shí)現(xiàn)了無縫接管 15 解決方案一的特點(diǎn) ?100%持續(xù)可用性 ?不需要切換操作，實(shí)現(xiàn)和管理簡(jiǎn)單 ?雙磁盤寫，對(duì)性能影響輕微 ?投資少， LVM是 p系列主機(jī) AIX中的缺省技術(shù)，不需要額外的軟件購(gòu)買費(fèi)用。 functions ? Benefits – Designed to maintain a consistent and restartable copy of the data at the remote site, with minimal impact to applications at the local site – Designed to allow data consistency to be managed across multiple machines configured in a single session, with data currency at the remote site lagging behind the local site by as little as 3 to 5 seconds – Designed to support failover / failback modes for efficient resynchronization, with incremental resync of changes in event of loss of any of sites (Includes site A to C resync for DS8000) – Solution can help reduce load on site A in parison to multitarget (noncascaded) 3site mirroring solutions – Advantaged in requiring less work bandwidth and therefore lower cost than offerings from peting vendors BA CAsynchronous copy using Global Mirror (virtually unlimited distances) Synchronous copy using Metro Mirror Up to 300km (300km with RPQ) 26 主要內(nèi)容 ? 存儲(chǔ)高可用性與業(yè)務(wù)連續(xù)性的關(guān)系 ? 存儲(chǔ)高可用性解決方案 ? 存儲(chǔ)高可用系統(tǒng)和災(zāi)備系統(tǒng)之間的配合與轉(zhuǎn)換 ? 成功案例 27 Account Location Product Solution TimeGX MCC Nanning DS8100+ESS800 PPRC Y2021FJ MCC FZ DS8100 PPRC Y2021GMCC GZ DS8300 PPRC, LVM Y2021HN UNICOM GZ DS8100+ESS800 LVM Mirror Y2021GD UNICOM GZ ESS800 PPRC Y2021FS Power GZ DS6800 LVM Mirror Y2021SZZT Securi
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