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If failures are starting
to occur on a disk, but the disk has not yet failed completely,
you can replace the disk. This involves detaching the failed or failing
disk from its disk group, followed by replacing the failed or failing disk
with a new one. Replacing
the disk can be postponed until a later date if necessary. To replace a disk, use the following procedure: Select
menu item 3 (Remove a disk for replacement) from the vxdiskadm main
menu. At the following prompt, enter the name of the disk
to be replaced (or enter list for a list of disks): Remove a disk for replacement
Menu: VolumeManager/Disk/RemoveForReplace
Use this menu operation to remove a physical disk from a disk group, while retaining the disk name. This changes the state for the disk name to a removed disk. If there are any initialized disks that are not part of a disk group, you will begiven the option of using one of these disks as a replacement.
Enter disk name [<disk>,list,q,?] disk02 |
When you select a disk to remove for replacement, all
volumes that are affected by the operation are displayed, for example: The following volumes will lose mirrors as a result of this operation:
home src
No data on these volumes will be lost.
The following volumes are in use, and will be disabled as a result of this operation:
mkting
Any applications using these volumes will fail future accesses.
These volumes will require restoration from backup.
Are you sure you want do this? [y,n,q,?] (default: n) |
To remove the disk, causing the named volumes to be disabled
and data to be lost when the disk is replaced, enter y or press
Return. To abandon removal of the disk, and back up or move the data
associated with the volumes that would otherwise be disabled, enter
n or q and press Return. For example, to move the volume mkting to a disk other than
disk02, use this command: # vxassist move mkting !disk02 After backing up or moving the data in the volumes, start
again from step 1 above. At the following prompt, either select the device name
of the replacement disk (from the list provided), press Return to
choose the default disk, or enter none to defer replacing the disk
until a later date: The following devices are available as replacements:
c0t1d0
You can choose one of these disks now, to replace disk02.
Select "none" if you do not wish to select a replacement disk.
Choose a device, or select "none" [<device>,none,q,?] (default: c0t1d0) |
| | | |  | NOTE: Do not choose the old disk drive as a replacement even
though it appears in the selection list. If necessary, you can choose
to initialize a new disk. | | | | |
If you choose to defer replacing the failed disk, see the
following section, “Replacing
a Failed or Removed Disk” If you chose to replace the disk in step 4, press Return
at the following prompt to confirm this: Requested operation is to remove disk02 from group rootdg.
The removed disk will be replaced with disk device c0t1d0.
Continue with operation? [y,n,q,?] (default: y) |
vxdiskadm displays the following success messages: Replacement of disk disk02 in group rootdg with disk device c0t1d0 completed successfully. |
At the following prompt, indicate whether you want to remove
another disk (y) or return to the vxdiskadm main menu (n): Remove another disk? [y,n,q,?] (default: n) |
| | | | | NOTE: If removing a disk causes one or more volumes to be
disabled, see the section, "Restarting a Disabled Volume" in
the chapter "Recovery from Hardware Failure" in
the VERITAS Volume Manager Troubleshooting Guide, for information
on how to restart a disabled volume so that you can restore its
data from a backup. | | | | |
If you wish to move hot-relocate subdisks back to a replacement
disk, see “Configuring
Hot-Relocation to Use Only Spare Disks”. Replacing
a Failed or Removed Disk | |
Use the following
procedure to replace a failed or removed disk with a new disk: Select
menu item 4 (Replace a failed or removed disk) from the vxdiskadm
main menu. At the following prompt, enter the name of the disk
to be replaced (or enter list for a list of disks): Replace a failed or removed disk
Menu: VolumeManager/Disk/ReplaceDisk
Use this menu operation to specify a replacement disk for a diskthat you removed with the "Remove a disk for replacement" menuoperation, or that failed during use. You will be prompted for a disk name to replace and a disk device to use as a replacement.
You can choose an uninitialized disk, in which case the diskwill be initialized, or you can choose a disk that you havealready initialized using the Add or initialize a disk menuoperation.
Select a removed or failed disk [<disk>,list,q,?] disk02 |
The vxdiskadm program displays the device names of the
disk devices available for use as replacement disks. Your system
may use a device name that differs from the examples. Enter the
device name of the disk or press Return to select the default device: The following devices are available as replacements:
c0t1d0
You can choose one of these disks to replace disk02.
Choose "none" to initialize another disk to replace disk02.
Choose a device, or select "none"
[<device>,none,q,?] (default: c0t1d0) |
If the disk has not previously been initialized, press
Return at the following prompt to replace the disk: The requested operation is to initialize disk device c0t1d0 and to then use that device to replace the removed or failed disk disk02 in disk group rootdg.
Continue with operation? [y,n,q,?] (default: y) |
If the disk has already been initialized, press Return at
the following prompt to replace the disk: The requested operation is to use the initialized device c0t1d0 to replace the removed or failed disk disk02 in disk group rootdg.
Continue with operation? [y,n,q,?] (default: y) |
The vxdiskadm program then proceeds to replace the disk,
and returns the following message on success: Replacement of disk disk02 in group rootdg with disk device c0t1d0 completed successfully. |
At the following prompt, indicate whether you want to replace
another disk (y) or return to the vxdiskadm main menu (n): Replace another disk? [y,n,q,?] (default: n) |
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