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Windows Server上如何即時完整備份到備援機?

各位先進好:

需求希望能在Windows Server 2012R2伺服器上
建立即時完整的備份到另一台效能較差的PC或虛擬主機上
使得伺服器的硬體故障時,備援主機可以在更改網路IP後立刻上線。

目前查到Linux上有rsync可如此作業,Windows Server上不清楚如何實現,還請指導。

謝謝。

看更多先前的討論...收起先前的討論...
你提到Rsync的話Windows相似的功能是Robocopy
verdipeng iT邦新手 5 級 ‧ 2020-08-07 17:35:16 檢舉
我對rsync的認識可能是錯誤的,我以為其有類似整個伺服器鏡像的備援功能,查詢其遠端同步備份好像不是這個意思,謝謝您
vc0528 iT邦新手 5 級 ‧ 2020-08-07 17:42:30 檢舉
使得伺服器的硬體故障時,備援主機可以在更改網路IP後立刻上線
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
中斷容許的時間是?
verdipeng iT邦新手 5 級 ‧ 2020-08-07 17:48:11 檢舉
主要是伺服器若硬體問題故障,擔心其維修與待料時間不定,導致使用系統工作的人員無法作業,希望能有另一台備援在把其IP以人工改為與故障伺服器相同後,即可上線運作,容許中斷的時間可以是一天,謝謝
要這種即時備份的話就是建Failover Cluster了AD DNS一類的則是DR副本
那妳可以乾脆買兩台主機 反正只要壞得不是硬碟 硬碟整個RAID拔下來插到另一台上面又是一尾活龍 連IP都不用改 線接過去就好
cmwang iT邦大師 1 級 ‧ 2020-08-07 17:57:21 檢舉
*nix上透過rsync只備份資料到其他主機不算太麻煩,Windows上理論上雖然也差不多,但是因為Windows常常會寫一堆東西到亂七八糟的地方(例如registery等等),要這樣搞得先搞清楚到底哪些要備,哪些不用備就是了....
雷伊 iT邦好手 1 級 ‧ 2020-08-07 18:27:35 檢舉
你應該說明你要的系統備援是甚麼服務,網域控制站、 ERP、檔案伺服器、Web服務?
vc0528 iT邦新手 5 級 ‧ 2020-08-07 20:44:24 檢舉
有1天時間, 如前2樓說的, 備料優先 , 硬碟要做raid, 最簡單快速, 也不用擔心資料有異, 不用想sync 方案, 以上是純考慮硬體故障.
資料損毀或被綁架之類的另外考量.
那把實體機轉成虛擬機,在用VM備份或是其他方式將OS備份起來。之後一台ESXi掛了,準備另一台ESXi倒回去如何?
verdipeng iT邦新手 5 級 ‧ 2020-08-08 10:16:57 檢舉
感謝各位先進指導。
目前硬碟有做Raid1,伺服器內的資料也有異地備份,但若伺服器硬體故障,則希望有一台備機能上線運作,備機上線後與原伺服器故障前最後的狀態是一致的。
伺服器本身是辦公室內部MSSQL資料庫以及一些Client-Server AP運作,故若發生故障,可在告知同仁後容許一段作業停擺時間(可能幾個小時到一天)來處理。
gn23391042大提的方式-買兩台主機,由於可能沒有採購第二台同型伺服器的預算,因此希望備援的主機是效能比較低的一般PC或虛擬機,如此在伺服器硬體故障的期間,雖然由於備援的硬體效能較差導致使用資料庫的執行時間拉長,但至少能讓辦公室維持運作直到原故障伺服器修復。
以上是提此問題的粗淺想法,抱歉沒有說明清楚,也很感謝大家的回饋與建議,讓我在大家的回覆當中,也慢慢釐清問題的方向中。
BKY iT邦新手 4 級 ‧ 2020-08-08 12:21:05 檢舉
不知道伺服器內的資料是多久備份一次,除了停機時間之外,還要考慮資料上一次備份到伺服故障前的時間差,就算找另一台備援機器把備份還原.但是這一段時間的資料都沒了,要全部補打。
vc0528 iT邦新手 5 級 ‧ 2020-08-08 14:44:53 檢舉
sql 要完全一樣, 你要的是mssql ha方案 , 但就要多一台server , 虛擬機也行.
只是要多一個windows server授權費用就是了
https://docs.microsoft.com/zh-tw/windows-server/failover-clustering/create-failover-cluster
verdipeng iT邦新手 5 級 ‧ 2020-08-11 18:07:25 檢舉
目前考量預算與專業技術尚不足,故暫時的方案是鏡像的部分就做用主機板的Raid1做,另資料庫的部分一天兩次做異地備份+Veeam Agent for Windows(尚在測試中)做整機備份以還原到虛擬機上。感谢各位的幫忙,謝謝。
2
BKY
iT邦新手 4 級 ‧ 2020-08-07 17:51:50

要做到即時轉移只能用 Failover Cluster(容錯移轉叢集)
如果是硬碟掛了,根本你連備份的機會都沒有
就算硬碟沒掛,停機備份還原一定會有中斷的時間
就看貴公司容許中斷作業的時間了

1
candyjen
iT邦見習生 ‧ 2020-08-08 00:31:31

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1
ks1217
iT邦研究生 4 級 ‧ 2020-08-08 16:31:34

用Veeam社群版(免費)備份實體機(應該是要裝Agent), 可以試一下看備份一次需要多久時間, 每天備份兩次, 異常時轉成VM 用一般電腦裝 workstation player(也免費) 來運作就行了(RAM要夠多), 停機時間應該不到30分鐘吧.

verdipeng iT邦新手 5 級 ‧ 2020-08-11 18:07:50 檢舉

感謝您的建議,目前朝此建議的方向學習中,謝謝

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