How to Enable a Component in a RAID-5 Volume

If a disk drive is defective, you can replace it with another available disk (and its slices) on the system as documented in How to Replace a Component in a RAID-5 Volume. Alternatively, you can repair the disk, label it, and run the metareplace command with the -e option to re-enable the disk.

1. Make sure that you have a current backup of all data and that you have superuser access.

2. To enable a failed component in a RAID-5 volume, use one of the following methods:

   • From the Enhanced Storage tool within the Solaris Management Console, open the Volumes node, then open the RAID-5 volume. Choose the Components pane. Then, choose the failed component. Click Enable Component. Follow the onscreen instructions. For more information, see the online help.

   • Use the following form of the metareplace command:

     # metareplace -e volume-name component-name

     -e

     Specifies to place the failed component into an available state and to perform a resynchronization on the failed component.

     volume-name

     Specifies the name of the volume containing the failed component.

     component-name

     Specifies the name of the failed component.

     The metareplace command automatically starts resynchronizing the new component with the rest of the RAID-5 volume.

Example 15–4 Enabling a Component in a RAID-5 Volume

In the following example, the RAID-5 volume d20 has a slice, c2t0d0s2, which had a soft error. The metareplace command with the -e option enables the slice.

# metareplace -e d20 c2t0d0s2