Use one of the following methods to check mirror or submirror status.
From the Enhanced Storage tool within the Solaris Management Console, open the Volumes node, choose the mirror, then choose Action->Properties. Follow the instructions on screen. For more information, see the online help.
Run the metastat command on a mirror to see the state of each submirror, the pass number, the read option, the write option, and the size of the total number of blocks in mirror. For example, to check the status of the one-way mirror d70, use:
# metastat d70 d70: Mirror Submirror 0: d71 State: Okay Pass: 1 Read option: roundrobin (default) Write option: parallel (default) Size: 12593637 blocks d71: Submirror of d70 State: Okay Size: 12593637 blocks Stripe 0: Device Start Block Dbase State Reloc Hot Spare c1t3d0s3 0 No Okay Yes Stripe 1: Device Start Block Dbase State Reloc Hot Spare c1t3d0s4 0 No Okay Yes Stripe 2: Device Start Block Dbase State Reloc Hot Spare c1t3d0s5 0 No Okay Yes |
See How to Change RAID 1 Volume Options to change a mirror's pass number, read option, or write option.
See metastat(1M) for more information about checking device status.
Here is sample output from the metastat command.
# metastat d0: Mirror Submirror 0: d1 State: Okay Submirror 1: d2 State: Okay Pass: 1 Read option: roundrobin (default) Write option: parallel (default) Size: 5600 blocks d1: Submirror of d0 State: Okay Size: 5600 blocks Stripe 0: Device Start Block Dbase State Hot Spare c0t2d0s7 0 No Okay ... |
For each submirror in the mirror, the metastat command shows the state, an “invoke” line if there is an error, the assigned hot spare pool (if any), size in blocks, and information about each slice in the submirror.