打造更高可靠的存儲(chǔ)系統(tǒng)(參考版)
2025-05-18 22:27本頁(yè)面
【正文】 F20 LVM Mirror Y2021HLJ RCCB SY ESS800 LVM Mirror Y2021CUIC XA DS8100amp。 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 Securities SZ DS4800 LVM Mirror Y2021GS MOR XA DS6800 LVM Mirror Y2021XJ MOR XJ DS6800 LVM Mirror Y2021HLJ MOR SY DS6800 LVM Mirror Y2021SD MOR SD DS6800 LVM Mirror Y2021CNOOC BJ DS8100amp。真正實(shí)現(xiàn)了無(wú)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(pán)寫(xiě)，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(mǎi)費(fèi)用。主要包括硬件容錯(cuò)功能、部件冗余、自動(dòng)錯(cuò)誤診斷、修復(fù)、迂回處理、再配置等，并具備預(yù)分析、測(cè)試、故障管理和變更管理等能力 7 本地高可用性和災(zāi)難備份之間的關(guān)系 ? HA 關(guān)鍵詞“本地” – 定位：針對(duì)生產(chǎn)中心的內(nèi)部故障 – 通常能夠滿(mǎn)足非常快速的恢復(fù)時(shí)間 – RTO / RPO要求嚴(yán)格 – 實(shí)時(shí)保護(hù) – 實(shí)施相對(duì)簡(jiǎn)單 – 切換過(guò)程簡(jiǎn)單 ? DR 關(guān)鍵詞“異地” – 定位：針對(duì)生產(chǎn)中心的機(jī)房或大面積設(shè)備故障 – 通?；謴?fù)時(shí)間較長(zhǎng) – 一般能夠容忍部分?jǐn)?shù)據(jù)丟失 – 實(shí)施相
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