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{{tag>raid megacli}}

====== megacli replace disk ======
List error count:

  megacli -PDList -aAll | egrep "Enclosure Device ID:|Slot Number:|Inquiry Data:|Error Count:|state" 

Check disk's serial number,you need smartmontools:

  aptitude install smartmontools

Find Device Id (different from Enclosure Device ID !!!):

  megacli -PDList -aAll | egrep "Enclosure Device ID:|Slot Number:|Inquiry Data:|Error Count:|state|Device Id:"

Then in find Device Id serial:

  smartctl -a -d megaraid,2 /dev/sda

"2" is Device Id, ///dev/sda// is logical disk.

  megacli -pdoffline -physdrv[252:0] -a0

  megacli -pdmarkmissing -physdrv[252:0] -a0


  megacli -PDRbld -ShowProg -PhysDrv[252:0] -a0

If you need to remove the hotspares use this:

  megacli -PDHSP -Rmv -PhysDrv[252:4] -a0

  Adapter: 0: Remove Physical Drive at EnclId-252 SlotId-4 as Hot Spare Success.

-PhysDrv[252:4] is obtained via PDlist command. Now this should show "unconfigured":

  ...
  Firmware state: Unconfigured(good), Spun Up
  ...

Prepare them for remove:

  megacli -PDPrpRmv -PhysDrv [252:5] -a0

Now they should show "spun down" state:

  Firmware state: Unconfigured(good), Spun down

====== Tested on ======
  * 

====== See also ======
  * [[wiki:megacli_drive_rebuild|megacli drive rebuild]]
  * [[wiki:megacli_commands|megacli commands]]
====== References ======
  * http://erikimh.com/megacli-cheatsheet/