After checking the prerequisites ("Prerequisites for Maintaining DiskSuite Objects"), the overview ("Overview of Replacing and Enabling Slices in Mirrors and RAID5 Metadevices"), and the preliminary information ("Preliminary Information For Replacing and Enabling Slices in Mirrors and RAID5 Metadevices"), use the metareplace(1M) command to replace a slice in a submirror.
# metastat d6 d6: Mirror Submirror 0: d16 State: Okay Submirror 1: d26 State: Needs maintenance ... d26: Submirror of d6 State: Needs maintenance Invoke: metareplace d6 c0t2d0s2 <new device> ... # metareplace d6 c0t2d0s2 c0t2d2s2 d6: device c0t2d0s2 is replaced with c0t2d2s2 |
The metastat command confirms that mirror d6 has a submirror, d26, with a slice in the "Needs maintenance" state. The metareplace command replaces the slice as specified in the "Invoke" line of the metastat output with another available slice on the system. The system confirms that the slice is replaced, and starts a resync of the submirror.