i have purged and reinstalled the mdadm package twice.
below is all the info i could think of . the kernel is 2.6.10 patched -- stock kanotix
either drive will boot and the behavior is the same no matter which one is active
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ current installed version of mdadm
mdadm: Installed: 1.9.0-2 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ hda partition table
Disk geometry for /dev/hda: 0.000-152627.835 megabytes Disk label type: msdos Minor Start End Type Filesystem Flags 1 0.031 151629.125 primary ext3 raid 2 151629.126 152625.344 primary linux-swap @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ hdc partition table
Disk geometry for /dev/hdc: 0.000-152627.835 megabytes Disk label type: msdos Minor Start End Type Filesystem Flags 1 0.031 151629.125 primary ext3 raid 2 151629.126 152625.344 primary
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ examine /dev/hda1
root@crm_svr:/home/rob# mdadm -E /dev/hda1
/dev/hda1:
Magic : a92b4efc
Version : 00.90.01
UUID : bcbf4556:4aba6daf:5661e4a2:32fcc1db
Creation Time : Mon Mar 21 17:22:34 2005
Raid Level : raid1
Raid Devices : 2
Total Devices : 1
Preferred Minor : 0 Update Time : Sat Mar 26 19:33:08 2005
State : clean
Active Devices : 1
Working Devices : 1
Failed Devices : 1
Spare Devices : 0
Checksum : c7caacc2 - correct
Events : 0.17321
Number Major Minor RaidDevice State this 0 3 1 0 active sync /dev/hda1
0 0 3 1 0 active sync /dev/hda1 1 1 0 0 1 faulty removed
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ examine /dev/hdc1
root@crm_svr:/home/rob# mdadm -E /dev/hdc1
/dev/hdc1:
Magic : a92b4efc
Version : 00.90.01
UUID : bcbf4556:4aba6daf:5661e4a2:32fcc1db
Creation Time : Mon Mar 21 17:22:34 2005
Raid Level : raid1
Raid Devices : 2
Total Devices : 1
Preferred Minor : 0 Update Time : Sat Mar 26 20:23:04 2005
State : clean
Active Devices : 1
Working Devices : 1
Failed Devices : 0
Spare Devices : 0
Checksum : c7cabae4 - correct
Events : 0.17613
Number Major Minor RaidDevice State this 1 22 1 1 active sync /dev/hdc1
0 0 0 0 0 removed 1 1 22 1 1 active sync /dev/hdc1
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ what happens when i try a hot add remove or set faulty
root@crm_svr:/home/rob# mdadm /dev/md0 -a /dev/hda1 mdadm: hot add failed for /dev/hda1: Invalid argument root@crm_svr:/home/rob# mdadm /dev/md0 -a /dev/hdc1 mdadm: hot add failed for /dev/hdc1: Invalid argument
root@crm_svr:/home/rob# mdadm /dev/md0 -r /dev/hda1 mdadm: hot remove failed for /dev/hda1: No such device or address root@crm_svr:/home/rob# mdadm /dev/md0 -r /dev/hdc1 mdadm: hot remove failed for /dev/hdc1: Device or resource busy
root@crm_svr:/home/rob# mdadm /dev/md0 -f /dev/hda1 mdadm: set device faulty failed for /dev/hda1: No such device root@crm_svr:/home/rob# mdadm /dev/md0 -f /dev/hdc1 mdadm: set /dev/hdc1 faulty in /dev/md0
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ boot info from dmesg
Probing IDE interface ide0... hda: WDC WD1600JB-00GVA0, ATA DISK drive hdb: SAMSUNG CD-ROM SH-152A, ATAPI CD/DVD-ROM drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 Probing IDE interface ide1... hdc: WDC WD1600JB-00GVA0, ATA DISK drive ide1 at 0x170-0x177,0x376 on irq 15
hda: max request size: 1024KiB
hda: 312581808 sectors (160041 MB) w/8192KiB Cache, CHS=19457/255/63, UDMA(100)
hda: cache flushes supported
hda: hda1 hda2
hdc: max request size: 1024KiB
hdc: 312581808 sectors (160041 MB) w/8192KiB Cache, CHS=19457/255/63, UDMA(100)
hdc: cache flushes supported
hdc: hdc1 hdc2
hdb: ATAPI 52X CD-ROM drive, 128kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
md: linear personality registered as nr 1 md: raid0 personality registered as nr 2 md: raid1 personality registered as nr 3 md: raid10 personality registered as nr 9 md: raid5 personality registered as nr 4 raid5: automatically using best checksumming function: pIII_sse pIII_sse : 1448.000 MB/sec raid5: using function: pIII_sse (1448.000 MB/sec) raid6: int32x1 621 MB/s raid6: int32x2 777 MB/s raid6: int32x4 468 MB/s raid6: int32x8 457 MB/s raid6: mmxx1 1363 MB/s raid6: mmxx2 2484 MB/s raid6: sse1x1 1246 MB/s raid6: sse1x2 2140 MB/s raid6: using algorithm sse1x2 (2140 MB/s) md: raid6 personality registered as nr 8 md: multipath personality registered as nr 7 md: md driver 0.90.1 MAX_MD_DEVS=256, MD_SB_DISKS=27 device-mapper: 4.3.0-ioctl (2004-09-30) initialised: dm-devel@xxxxxxxxxx
md: Autodetecting RAID arrays.
md: autorun ...
md: considering hdc1 ...
md: adding hdc1 ...
md: adding hda1 ...
md: created md0
md: bind<hda1>
md: bind<hdc1>
md: running: <hdc1><hda1>
md: kicking non-fresh hda1 from array!
md: unbind<hda1>
md: export_rdev(hda1)
raid1: raid set md0 active with 1 out of 2 mirrors
md: ... autorun DONE.
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 276k freed
kjournald starting. Commit interval 5 seconds
Warning: /proc/ide/hd?/settings interface is obsolete, and will be removed soon!
EXT3 FS on md0, internal journal
Adding 1020116k swap on /dev/hda2. Priority:-1 extents:1
EXT3 FS on md0, internal journal
kjournald starting. Commit interval 5 seconds
EXT3 FS on hda1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
EFS: 1.0a - http://aeschi.ch.eu.org/efs/
reiser4[mount(1122)]: _init_read_super (fs/reiser4/init_super.c:198)[nikita-2608]:
WARNING: hdc2: wrong master super block magic.
NTFS driver 2.1.22 [Flags: R/W MODULE].
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