Two isw RAID1 arrays
Hans-Joachim Baader
hjb at pro-linux.de
Fri Apr 24 10:05:01 UTC 2009
Hi,
I have a machine with 4 SATA disks, configured in two separate fakeraids.
While the hardware is detected correctly, I cannot get the system to make
the device files for the partitions.
I tried dmraid rc14, rc15 and a patched rc15 from Debian Sid. With the
newer versions the RAID isn't even detected. I know there are various
patches floating around but it's unknown which ones are good. So here is
some output from rc14. Kernel version is 2.6.28.9
# dmraid -r
/dev/sdd: isw, "isw_dhhidegdgf", GROUP, ok, 488397166 sectors, data@ 0
/dev/sdc: isw, "isw_dhhidegdgf", GROUP, ok, 488397166 sectors, data@ 0
/dev/sdb: isw, "isw_dejhhehaec", GROUP, ok, 488397166 sectors, data@ 0
/dev/sda: isw, "isw_dejhhehaec", GROUP, ok, 488397166 sectors, data@ 0
# dmraid -ay -vvv
WARN: locking /var/lock/dmraid/.lock
NOTICE: /dev/sdd: asr discovering
...
NOTICE: /dev/sda: isw metadata discovered
...
NOTICE: added /dev/sdd to RAID set "isw_dhhidegdgf"
NOTICE: added /dev/sdc to RAID set "isw_dhhidegdgf"
NOTICE: added /dev/sdb to RAID set "isw_dejhhehaec"
NOTICE: added /dev/sda to RAID set "isw_dejhhehaec"
RAID set "isw_dhhidegdgf_Volume1" already active
INFO: Activating GROUP RAID set "isw_dhhidegdgf"
RAID set "isw_dejhhehaec_Volume0" already active
INFO: Activating GROUP RAID set "isw_dejhhehaec"
NOTICE: discovering partitions on "isw_dhhidegdgf_Volume1"
NOTICE: /dev/mapper/isw_dhhidegdgf_Volume1: dos discovering
NOTICE: /dev/mapper/isw_dhhidegdgf_Volume1: dos metadata discovered
NOTICE: created partitioned RAID set(s) for
/dev/mapper/isw_dhhidegdgf_Volume1
INFO: Activating partition RAID set "isw_dhhidegdgf_Volume15"
WARN: unlocking /var/lock/dmraid/.lock
# ls -l /dev/mapper
crw-r--r-- 1 root root 10, 63 May 24 2005 control
brw------- 1 root root 254, 0 Apr 21 13:13
isw_dejhhehaec_Volume0
brw------- 1 root root 254, 1 Apr 21 13:13
isw_dhhidegdgf_Volume1
brw------- 1 root root 254, 5 Apr 21 13:37
isw_dhhidegdgf_Volume15
After activating, there is only one partition detected, but there should
be 3, as can be seen from the fdisk output below. The first raid has a
single primary partition, the second one a singe logical partition. Using
libdevmapper 1.02 or 1.02.1 doesn't make a difference.
# fdisk -l /dev/mapper/isw_dejhhehaec_Volume0
Disk /dev/mapper/isw_dejhhehaec_Volume0: 250.0 GB, 250056015872 bytes
255 heads, 63 sectors/track, 30400 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id
System
/dev/mapper/isw_dejhhehaec_Volume0p1 * 1 30400 244187968+
7 HPFS/NTFS
# fdisk -l /dev/mapper/isw_dhhidegdgf_Volume1
Disk /dev/mapper/isw_dhhidegdgf_Volume1: 250.0 GB, 250056015872 bytes
255 heads, 63 sectors/track, 30400 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id
System
/dev/mapper/isw_dhhidegdgf_Volume1p1 2 30400 244179967+
f Win95 Ext'd (LBA)
/dev/mapper/isw_dhhidegdgf_Volume1p5 2 30400 244179936
7 HPFS/NTFS
I tried to do "dmraid -ay" for each RAID separately but this didn't
help either.
There's probably some information missing, tell me what you need.
Thanks,
hjb
--
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http://www.pro-linux.de/ Public Key ID 0x3DDBDDEA
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