How to replace the faulty drive on AIX LVM

Steps to replace the hdisk25 ( pdisk21) on AIX

Steps to Verify the alert are :

Errors observed in errpt

 Actual Steps for the Disk Replacement.

1. Remove the 3^rd copy

rmlvcopy  <volumeA> 2 hdisk25

rmlvcopy <volumeB> 2 hdisk25

rmlvcopy  <volumeC> 2 hdisk25

2. Remove the disk from the VG

reducevg <VolumeC> hdisk25

3. Set the Identifier for on the disk to be replaced

smitty diag -à Current Shell Diagnostics à Task Selection(Diagnostics,Advanced Diagnostics)—A

AàSSA Service Aids-àSMIT SSA disksàSSA Physical Disks àIdentify an SSA Physical Disk àChoose “pdisk21àFlash Disk Identification light

4. Remove the disk from the OS

rmdev –Rdl hdisk25

rmdev –Rdl pdiskXX

5. Verify that the disk is completely removed

collect lspv and lsdev -Cc disk output

Engineer will replace the disk.

6. Add the new disk to the ODM

cfgmgr –v

7. Verify the disk. ( Hopefully it’s the same number hdisk25 ;-) )

lspv

8. Add the disk to the VG

extendvg <volumeC> hdisk25

9. Create the 3^rd copy of same LVs on hdisk??

mklvcopy <volume> 3 hdisk?? ( hopefully the same disknumber)

mklvcopy <volume> 3 hdisk??

mklvcopy <volume> 3 hdisk??

10. Sync the VG

Syncvg –p hdisk??

Or

syncvg –v <vg>

11. To check the sync status

lsvg –l <vg>

lsvg <vg>