Sometimes the Solaris Solstice Disk Suite (SDS) can do really strange things. Below you see a mirror where both submirrors are in state Needs maintenance. d0: Mirror Submirror 0: d10 State: Needs maintenance Submirror 1: d20 State: Needs maintenance Pass: 1 Read option: roundrobin (default) Write option: parallel (default) Size: 1027776 blocks d10: Submirror of [...]