https://community.hpe.com/t5/proliant-servers-ml-dl-sl/sas-predictive-failure-process-and-how-to-avoid-corruption/m-p/6951590#M156938 <P>There maybe was another problem with your system, unless it is a RAID0 an online replacemement is supported for most smart array controllers, see for example:</P><P>&nbsp;</P><P><A href="http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c03426341" target="_blank">http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c03426341</A></P> Mon, 27 Mar 2017 13:46:27 GMT Torsten. 2017-03-27T13:46:27Z https://community.hpe.com/t5/proliant-servers-ml-dl-sl/sas-predictive-failure-process-and-how-to-avoid-corruption/m-p/6951581#M156937 <P>Product Name: DL380 G6</P><P><BR />Operating System: Microsoft Windows Server 2008 (64-bit)</P><P>&nbsp;</P><P>This may not be the area to post this and this is a solution to a problem so feel free to move this to a more enterprise area of the forums.&nbsp; I had a HP Proliant DL380 G6 with a predictive hard drive failure.&nbsp; I replaced the drive via the hot swap option:&nbsp; CAUTION: DO NOT REPLACE A DRIVE WITH PREDICTIVE FAILURE WHILE SERVER IS OPERATIONAL.&nbsp; You must shut down the server to replace drives with predicitve hard drive failures.&nbsp; As a result of the hot swap, it corrupted one of my vhdx files (a 2010 Exchange Server).&nbsp; The symptoms of the problem was I could no longer copy files from this RAID 5 volume to any location, the copy would consistently fail and as a result I could not backup the data.</P><P>&nbsp;</P><P>SOLUTION:&nbsp; Power off the server.&nbsp; Replace the drive with predictive failure with a known good drive (preferrably NEW drive) and then power on the server.&nbsp; The RAID rebuild should take place automatically.&nbsp; Then, run a CHKDSK /R on the affected RAID volume to allow Windows to replace the bad blocks.&nbsp; If all goes well, Windows should repair the drive and with any luck (as in my case) you will be able to recover your data and fire up your VM successfully.</P><P>&nbsp;</P><P>The reason I am posting this is because it took me many hours of work and research to resolve this problem and I am trying to save someone else the trouble.</P> Mon, 27 Mar 2017 13:05:14 GMT https://community.hpe.com/t5/proliant-servers-ml-dl-sl/sas-predictive-failure-process-and-how-to-avoid-corruption/m-p/6951581#M156937 KCLLC 2017-03-27T13:05:14Z https://community.hpe.com/t5/proliant-servers-ml-dl-sl/sas-predictive-failure-process-and-how-to-avoid-corruption/m-p/6951590#M156938 <P>There maybe was another problem with your system, unless it is a RAID0 an online replacemement is supported for most smart array controllers, see for example:</P><P>&nbsp;</P><P><A href="http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c03426341" target="_blank">http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c03426341</A></P> Mon, 27 Mar 2017 13:46:27 GMT https://community.hpe.com/t5/proliant-servers-ml-dl-sl/sas-predictive-failure-process-and-how-to-avoid-corruption/m-p/6951590#M156938 Torsten. 2017-03-27T13:46:27Z