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Recovering From Multiple Write Failed Disks in a LUN
The procedures for reviving a Dead LUN, differ slightly depending on whether the RAID level is 1 or 5. In all cases, it warns that Unfail should only be used on the LAST drive that was marked as failed, which, if unfailed, would transition the LUN from Dead to Degraded. The remainder of the failed drives should be changed from Failed to Replaced--not Unfailed. To do otherwise is to risk loss of data integrity
總的來說:
1.你現(xiàn)在主要的問題不是Rebuild Failed,是Data Unavailable;這個(gè)你必須認(rèn)識(shí)清楚;
2.手工REBUILD到99%,應(yīng)用能訪問證明LOST的部分?jǐn)?shù)據(jù)不多.但是關(guān)鍵是陣列現(xiàn)在所處的狀態(tài)是個(gè)很不穩(wěn)定的狀態(tài);如果繼續(xù)運(yùn)行下去會(huì)有更嚴(yán)重的后果.最好的辦法當(dāng)然是趁現(xiàn)在數(shù)據(jù)在的時(shí)候備份重建.
3.硬盤壞有幾種方式;有時(shí)候是因?yàn)橛脖P的讀寫錯(cuò)誤次數(shù)超過規(guī)定的閥值;
4.磁盤插回去任何一個(gè)空位就好了.
5.這個(gè)方法不過聊盡人事而已,成功的幾率不超過10%.
[ 本帖最后由 cjhvslhb 于 2007-6-19 13:54 編輯 ] |
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