Redhat-6.1, kernel-2.2.13 with ide.2.2.13.19991102.patch (Andre Hedrick) and
raid-2.2.14-A2 (Ingo Molnar) patches applied. Maxtor 27 GB IDE drives attached
via Promise Ultra66 cards.
So I have my sleek raid10 array all commissioned and populated with data:
[root@osmin own]# cat /proc/mdstat
Personalities : [raid0] [raid1]
read_ahead 1024 sectors
md2 : active raid1 md1[1] md0[0] 53176768 blocks [2/2] [UU]
md1 : active raid0 hdk1[1] hdg1[0] 53176832 blocks 32k chunks
md0 : active raid0 hdi1[1] hde1[0] 53176832 blocks 32k chunks
unused devices: <none>
Then I try unplugging one of the drives, thinking that raid0 array will fail
and be marked bad, leaving me with only half of my raid1 array, allowing me to
run in degraded mode . . . but instead I see:
Nov 24 21:29:27 osmin kernel: hdg: status error: status=0x00 { }
Nov 24 21:29:27 osmin kernel: hdg: drive not ready for command
Nov 24 21:29:27 osmin kernel: hdg: status error: status=0x00 { }
Nov 24 21:29:27 osmin kernel: hdg: drive not ready for command
Nov 24 21:29:27 osmin kernel: hdg: status error: status=0x00 { }
Nov 24 21:29:27 osmin kernel: hdg: drive not ready for command
Nov 24 21:29:27 osmin kernel: hdg: status error: status=0x00 { }
Nov 24 21:29:27 osmin kernel: hdg: DMA disabled
Nov 24 21:29:27 osmin kernel: hdg: drive not ready for command
Nov 24 21:29:27 osmin kernel: ide3: reset: master: error (0x00?)
Nov 24 21:29:27 osmin kernel: hdg: status error: status=0x00 { }
Nov 24 21:29:27 osmin kernel: hdg: drive not ready for command
Nov 24 21:29:27 osmin kernel: hdg: status error: status=0x00 { }
Nov 24 21:29:27 osmin kernel: hdg: drive not ready for command
Nov 24 21:29:27 osmin kernel: hdg: status error: status=0x00 { }
Nov 24 21:29:27 osmin kernel: hdg: drive not ready for command
Nov 24 21:29:27 osmin kernel: hdg: status error: status=0x00 { }
Nov 24 21:29:27 osmin kernel: hdg: drive not ready for command
Nov 24 21:29:27 osmin kernel: ide3: reset: master: error (0x00?)
Nov 24 21:29:27 osmin kernel: hdg: status error: status=0x00 { }
Nov 24 21:29:27 osmin kernel: end_request: I/O error, dev 22:01 (hdg), sector 32506056
Nov 24 21:29:27 osmin kernel: md: bug in file md.c, line 485
Nov 24 21:29:27 osmin kernel:
Nov 24 21:29:27 osmin kernel: **********************************
Nov 24 21:29:27 osmin kernel: * <COMPLETE RAID STATE PRINTOUT> *
Nov 24 21:29:27 osmin kernel: **********************************
Nov 24 21:29:27 osmin kernel: md2: <md1><md0> array superblock:
Nov 24 21:29:27 osmin kernel: SB: (V:0.90.0)
ID:<9a8b4f15.48c3e86c.f14f7969.f8844d0f> CT:383af527
Nov 24 21:29:27 osmin kernel: L1 S53176768 ND:2 RD:2 md2 LO:0 CS:32768
Nov 24 21:29:27 osmin kernel: UT:383c4cd8 ST:0 AD:2 WD:2 FD:0 SD:0 CSUM:e9f1792c
E:00000007
Nov 24 21:29:27 osmin kernel: D 0: DISK<N:0,md0(9,0),R:0,S:6>
Nov 24 21:29:27 osmin kernel: D 1: DISK<N:1,md1(9,1),R:1,S:6>
Nov 24 21:29:27 osmin kernel: D 2: DISK<N:0,[dev 00:00](0,0),R:0,S:4>
Nov 24 21:29:27 osmin kernel: D 3: DISK<N:0,[dev 00:00](0,0),R:0,S:4>
Nov 24 21:29:27 osmin kernel: D 4: DISK<N:0,[dev 00:00](0,0),R:0,S:4>
Nov 24 21:29:27 osmin kernel: D 5: DISK<N:0,[dev 00:00](0,0),R:0,S:4>
Nov 24 21:29:27 osmin kernel: D 6: DISK<N:0,[dev 00:00](0,0),R:0,S:4>
Nov 24 21:29:27 osmin kernel: D 7: DISK<N:0,[dev 00:00](0,0),R:0,S:4>
Nov 24 21:29:27 osmin kernel: D 8: DISK<N:0,[dev 00:00](0,0),R:0,S:4>
Nov 24 21:29:27 osmin kernel: D 9: DISK<N:0,[dev 00:00](0,0),R:0,S:4>
Nov 24 21:29:27 osmin kernel: D 10: DISK<N:0,[dev 00:00](0,0),R:0,S:4>
Nov 24 21:29:27 osmin kernel: D 11: DISK<N:0,[dev 00:00](0,0),R:0,S:4>
Nov 24 21:29:27 osmin kernel: THIS: DISK<N:1,md1(9,1),R:1,S:6>
Nov 24 21:29:27 osmin kernel: rdev md1: O:md1, SZ:53176768 F:0 DN:1 rdev superblock:
Nov 24 21:29:27 osmin kernel: SB: (V:0.90.0)
ID:<9a8b4f15.48c3e86c.f14f7969.f8844d0f> CT:383af527
Nov 24 21:29:27 osmin kernel: L1 S53176768 ND:2 RD:2 md2 LO:0 CS:32768
Nov 24 21:29:27 osmin kernel: UT:383c4cd8 ST:0 AD:2 WD:2 FD:0 SD:0 CSUM:e9f1797e
E:00000007
Nov 24 21:29:27 osmin kernel: D 0: DISK<N:0,md0(9,0),R:0,S:6>
Alas, nothing appears to be wrong according to raidtab:
[root@osmin src]# cat /proc/mdstat
Personalities : [raid0] [raid1]
read_ahead 1024 sectors
md2 : active raid1 md1[1] md0[0] 53176768 blocks [2/2] [UU]
md1 : active raid0 hdk1[1] hdg1[0] 53176832 blocks 32k chunks
md0 : active raid0 hdi1[1] hde1[0] 53176832 blocks 32k chunks
unused devices: <none>
Is this this expected behaviour?
-Darren
