hdisk0 failure

[hellsbells]

I am running AIX 5.1 on a pseries 640 and have a hdisk0 disk error in my error reports. I am not confident that I mirrored the disks on this box.

There are four internal disks (hdisk0, hdisk1, hdisk2 and hdisk3). The machine seems to stop if you ask something it doesn't like.

I can swap the hdisk0 out with another disk, but I want to unmirror it from the rootvg and then remove it from the rootvg. But first I need to ensure it is properly mirrored. I guess the machine would have stopped altogether if it was not mirrored, but if I ask for anything from the /tmp filesystem the request fails - ie snap -gfLC results in /usr/sbin/snap[3562]: /tmp/sh38882.13: cannot create
Similarly if I run lsvg rootvg I get the following : 0516-070 : LVM system call found an unaccountable
internal error.

I can get the physical disk info on hdisk1 - this is as follows:-

# lspv hdisk1
PHYSICAL VOLUME: hdisk1 VOLUME GROUP: rootvg
PV IDENTIFIER: 0046947af2292c22 VG IDENTIFIER 0046947a00004c00000000f6f
09d9c44
PV STATE: active
STALE PARTITIONS: 0 ALLOCATABLE: yes
PP SIZE: 32 megabyte(s) LOGICAL VOLUMES: 1
TOTAL PPs: 542 (17344 megabytes) VG DESCRIPTORS: 1
FREE PPs: 538 (17216 megabytes) HOT SPARE: no
USED PPs: 4 (128 megabytes)
FREE DISTRIBUTION: 109..108..104..108..109
USED DISTRIBUTION: 00..00..04..00..00

However if I try the same on the other disks I get the following :-

# lsvg hdisk3
0516-306 : Unable to find volume group hdisk3 in the Device
Configuration Database.
# lsvg hdisk0
0516-306 : Unable to find volume group hdisk0 in the Device
Configuration Database.
# lsvg hdisk2
0516-306 : Unable to find volume group hdisk2 in the Device
Configuration Database.

Can anyone tell me what I should do next please?

Many thanks

 

[hellsbells]

Thanks ever so much everyone. I will give what chapter11 says a go and see how I get on.

Thanks for all of your help though.

Cheers

 

[sbix]

C'mon hellsbells ... you're gonna survive this