It seemed like my RAID controller was running a little slow, so I was very concerned when I noticed an "INOPERABLE" message next to one of the units:
//pro-12-gl> /c4/u1 show status /c4/u1 status = INOPERABLE //pro-12-gl> /c4 show Unit UnitType Status %Cmpl Stripe Size(GB) Cache AVerify IgnECC ------------------------------------------------------------------------------ u0 RAID-5 OK - 64K 1117.52 ON OFF OFF u1 RAID-5 INOPERABLE - 64K 1117.52 OFF OFF OFF Port Status Unit Size Blocks Serial --------------------------------------------------------------- p0 OK u0 186.31 GB 390721968 5ND0V5PF p1 OK u0 186.31 GB 390721968 5ND0V5NX p2 OK u1 186.31 GB 390721968 5ND0VJLN p3 OK u0 186.31 GB 390721968 5ND0X7S6 p4 OK u0 186.31 GB 390721968 5ND0XCVK p5 OK u0 186.31 GB 390721968 5ND0WGL6 p6 OK u0 186.31 GB 390721968 5ND0Y5E0 p7 OK u0 186.31 GB 390721968 5ND0X93L
Turns out it was OK, there was some sort of confusion with the firmware. I deleted the unit and recreated it.
//pro-12-gl> maint deleteunit c4 u1 Deleting unit c4/u1 ...Done. //pro-12-gl> /c4 show Unit UnitType Status %Cmpl Stripe Size(GB) Cache AVerify IgnECC ------------------------------------------------------------------------------ u0 RAID-5 OK - 64K 1117.52 ON OFF OFF Port Status Unit Size Blocks Serial --------------------------------------------------------------- p0 OK u0 186.31 GB 390721968 5ND0V5PF p1 OK u0 186.31 GB 390721968 5ND0V5NX p2 OK - 186.31 GB 390721968 5ND0VJLN p3 OK u0 186.31 GB 390721968 5ND0X7S6 p4 OK u0 186.31 GB 390721968 5ND0XCVK p5 OK u0 186.31 GB 390721968 5ND0WGL6 p6 OK u0 186.31 GB 390721968 5ND0Y5E0 p7 OK u0 186.31 GB 390721968 5ND0X93L //pro-12-gl> maint createunit c4 p2 rspare Creating new unit on controller /c4 ... Done. The new unit is /c4/u1. //pro-12-gl> /c4 show Unit UnitType Status %Cmpl Stripe Size(GB) Cache AVerify IgnECC ------------------------------------------------------------------------------ u0 RAID-5 OK - 64K 1117.52 ON OFF OFF u1 SPARE OK - - 186.302 - OFF - Port Status Unit Size Blocks Serial --------------------------------------------------------------- p0 OK u0 186.31 GB 390721968 5ND0V5PF p1 OK u0 186.31 GB 390721968 5ND0V5NX p2 OK u1 186.31 GB 390721968 5ND0VJLN p3 OK u0 186.31 GB 390721968 5ND0X7S6 p4 OK u0 186.31 GB 390721968 5ND0XCVK p5 OK u0 186.31 GB 390721968 5ND0WGL6 p6 OK u0 186.31 GB 390721968 5ND0Y5E0 p7 OK u0 186.31 GB 390721968 5ND0X93L