Two isw RAID1 arrays

[Heinz Mauelshagen]

Hans-Joachim,

have you tried with -p in order prevent dmraid from partition activation
and used kpartx to activate them yet to see, if that makes any diffrence
for you ?

Heinz

Am Freitag, den 24.04.2009, 12:05 +0200 schrieb Hans-Joachim Baader:
> 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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