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容災(zāi)備份磁盤(pán)陣列 磁帶庫(kù)或光盤(pán)庫(kù) 2022/2/14 169。 2022 Hitachi Data Systems 12 層次化的存儲(chǔ)設(shè)備 不同級(jí)別的磁盤(pán)陣列 FCSATA 磁帶庫(kù) 2022/2/14 169。 2022 Hitachi Data Systems 13 HiCopy——數(shù)據(jù)遷移方案 ?ShadowImage enables “online” copy 2022/2/14 169。 2022 Hitachi Data Systems 14 ECopy——數(shù)據(jù)歸檔方案 ?Under NetBackup Control –ShadowImage? SVOL split –Client sends mapping info to media server –Media server sends SCSI extended copy mands to Lightning 9900V? Series eCopy –eCopy reads SVOL and writes data across SAN to tape –No impact to production data and application server NBU Client App Server NBU Master Server NBU Media Server Lightning 9900V? ShadowImage SVOL is PiT copy of database FC SAN Switch Tape LAN eCopy SVOL PVOL 2022/2/14 169。 2022 Hitachi Data Systems 15 TrueCopy——數(shù)據(jù)遠(yuǎn)程復(fù)制(同步方式) 2022/2/14 169。 2022 Hitachi Data Systems 16 ―Except in a total disaster, (explosion, earthquake,) you should NEVER expect your entire system to fail at the same moment. Failures will be intermittent and gradual, and the disaster will actually