The easy raid rebuild from yesterday turned out to not be so easy. Checking today, I got this message:
//cdfs3> info c0 Unit UnitType Status %Cmpl Stripe Size(GB) Cache AVerify IgnECC ------------------------------------------------------------------------------ u0 RAID-5 OK - 64K 1396.95 ON OFF OFF u1 RAID-5 REBUILDING 89 64K 1396.95 OFF OFF OFF Port Status Unit Size Blocks Serial --------------------------------------------------------------- p0 OK u0 465.76 GB 976773168 WD-WCANU1137212 p1 OK u0 465.76 GB 976773168 WD-WCANU1090078 p2 OK u0 465.76 GB 976773168 WD-WCANU1119743 p3 OK u0 465.76 GB 976773168 WD-WCANU1089924 p4 OK u1 465.76 GB 976773168 WD-WCANU1136981 p5 ECC-ERROR u1 465.76 GB 976773168 WD-WCANU1109927 p6 DEGRADED u1 465.76 GB 976773168 WD-WCAPW5103756 p7 OK u1 465.76 GB 976773168 WD-WCANU1125288
This does not look good at all, but the disk seems to be ok. So I tried this:
//cdfs3> /c0 rescan Rescanning controller /c0 for units and drives ...Done. Found the following unit(s): [none]. Found the following drive(s): [none]. //cdfs3> info c0 Unit UnitType Status %Cmpl Stripe Size(GB) Cache AVerify IgnECC ------------------------------------------------------------------------------ u0 RAID-5 OK - 64K 1396.95 ON OFF OFF u1 RAID-5 REBUILDING 89 64K 1396.95 OFF OFF OFF Port Status Unit Size Blocks Serial --------------------------------------------------------------- p0 OK u0 465.76 GB 976773168 WD-WCANU1137212 p1 OK u0 465.76 GB 976773168 WD-WCANU1090078 p2 OK u0 465.76 GB 976773168 WD-WCANU1119743 p3 OK u0 465.76 GB 976773168 WD-WCANU1089924 p4 OK u1 465.76 GB 976773168 WD-WCANU1136981 p5 OK u1 465.76 GB 976773168 WD-WCANU1109927 p6 DEGRADED u1 465.76 GB 976773168 WD-WCAPW5103756 p7 OK u1 465.76 GB 976773168 WD-WCANU1125288
That’s good. Now, I know the disk p6 is good because it was just replaced. I’m unsure now, if the rebuild will continue without problems or if I need to restart it. I think I’ll leave it for a while to see if things start working again. If it stays stuck at 89% for a while, I’ll run the rebuild command again.
I tried to reissue the command and got the following:
//cdfs3> /c0/u1 start rebuild disk=6 Sending rebuild start request to /c0/u1 on 1 disk(s) [6] ... Failed. (0x0B:0x0032): Unit is rebuilding //cdfs3> info c0 Unit UnitType Status %Cmpl Stripe Size(GB) Cache AVerify IgnECC ------------------------------------------------------------------------------ u0 RAID-5 OK - 64K 1396.95 ON OFF OFF u1 RAID-5 REBUILDING 89 64K 1396.95 OFF OFF OFF Port Status Unit Size Blocks Serial --------------------------------------------------------------- p0 OK u0 465.76 GB 976773168 WD-WCANU1137212 p1 OK u0 465.76 GB 976773168 WD-WCANU1090078 p2 OK u0 465.76 GB 976773168 WD-WCANU1119743 p3 OK u0 465.76 GB 976773168 WD-WCANU1089924 p4 OK u1 465.76 GB 976773168 WD-WCANU1136981 p5 OK u1 465.76 GB 976773168 WD-WCANU1109927 p6 DEGRADED u1 465.76 GB 976773168 WD-WCAPW5103756 p7 OK u1 465.76 GB 976773168 WD-WCANU1125288
So I think I’ll just have to leave it and hope that it finishes.