Problem with dmraid volumes at boot time

["HERVE Stephane (AREVA)" <stephane.herve@xxxxxxxxx>]

Hi all,

on Saturday we had our annual reboot of my NFS server which is on RedHat 5.2 (kernel 2.6.18-92).

Since I'm in big trouble because my server does not recognize his dmraid volumes at boot time.

I know that my disks are ok (made diag from my LSIlogic controller) and that my datas are there

(because when I boot on install CD, I can see my all datas even if I still have some errors).

When I look into the rc.sysinit file, I can see that the dm_resolve_name function does not return

anything. In fact it's the command

dmsetup table

in this function which does not return anything. I think it's not the right way, but maybe it is, I hope

you can explain it to me.

Here are the output of some dmraid commands when I finally finish my boot :

 

# dmraid -r
/dev/sda: ddf1, ".ddf1_disks", GROUP, ok, 583983104 sectors, data@ 0
/dev/sdb: ddf1, ".ddf1_disks", GROUP, ok, 583983104 sectors, data@ 0
/dev/sdc: ddf1, ".ddf1_disks", GROUP, ok, 583983104 sectors, data@ 0
/dev/sdd: ddf1, ".ddf1_disks", GROUP, ok, 585806427 sectors, data@ 0
/dev/sde: ddf1, ".ddf1_disks", GROUP, ok, 585806427 sectors, data@ 0
/dev/sdf: ddf1, ".ddf1_disks", GROUP, ok, 585806427 sectors, data@ 0

# dmraid -s
*** Group superset .ddf1_disks
--> Subset
name   : ddf1_4c53494c4f4749431000005010003110000047bef3103289
size   : 1751949312
stride : 128
type   : stripe
status : ok
subsets: 0
devs   : 3
spares : 0
--> Subset
name   : ddf1_4c53494c4f4749431000005010003110000047d1d930979b
size   : 1751949312
stride : 128
type   : stripe
status : ok
subsets: 0
devs   : 3
spares : 0

# dmraid -tay
ddf1_4c53494c4f4749431000005010003110000047bef3103289: 0 1751949312 striped 3 128 /dev/sda 0 /dev/sdb 0 /dev/sdc 0
ddf1_4c53494c4f4749431000005010003110000047d1d930979b: 0 1751949312 striped 3 128 /dev/sdd 0 /dev/sde 0 /dev/sdf 0

# fdisk -l /dev/sda

 

Disk /dev/sda: 300.0 GB, 300000000000 bytes
255 heads, 63 sectors/track, 36472 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

 

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1      109054   875974655+  8e  Linux LVM
# fdisk -l /dev/sdd

 

Disk /dev/sdd: 300.0 GB, 300000000000 bytes
255 heads, 63 sectors/track, 36472 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

 

   Device Boot      Start         End      Blocks   Id  System
/dev/sdd1               1      109054   875974655+  8e  Linux LVM

An the errors I get in /var/log/messages :

 

kernel:  sda: p1 exceeds device capacity

........

kernel:  sdd: p1 exceeds device capacity

........

kernel: attempt to access beyond end of device

 

My system see /dev/sda1 and /dev/sdd1 like partitions of a single disk of 300Go and not like a member

of a dmraid volume of 3 disks.

How can I do to make my system recognize these volums ? And why it doesn't while from an install CD

averything seems almost ok ?

Thanks in advance if you can help me.

 

Regards.

 

S.HERVE

AREVA TA - DP/SI/EMI

stephane.herve@xxxxxxxxx

+33 (0)442602647

+33 (0)777390285

 

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