VxVM : Re-adding a failed boot disk – incase of correctable errors
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Re-adding a disk is same procedure as replacing a failed disk, except we use same disk. We have to detach the disk from vxvm, so that the VxVM will detect the disk failure and will cease access to the failed disk.
You can then perform any special procedures to correct the problem, such as reformatting the device. To re-add a failed boot disk
- Select the vxdiskadm “Replace a failed or removed disk”menuitem to replace the disk, and specify the same device as the replacement. For example, you might replace disk01 with the device c0t0d0s2.
- If hot-relocation is enabled when a mirrored boot disk fails, an attempt is made to create a new mirror and remove the failed subdisks from the failing boot disk. If a re-add succeeds after a successful hot-relocation, the root and other volumes affected by the disk failure no longer exist on the re-added disk. Run vxunreloc to move the hot-relocated subdisks back to the newly replaced disk