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тАО09-20-2010 10:21 PM
тАО09-20-2010 10:21 PM
disk problem
In one of our production server, the LV status of few LV become stale instead of syncd automatically. Output is attached here. Any suggestion???
Rgds-Kranti
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тАО09-20-2010 10:22 PM
тАО09-20-2010 10:22 PM
Re: disk problem
Server model: rp4440
OS: HPUX 11.1
Rgds-Kranti
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тАО09-20-2010 11:01 PM
тАО09-20-2010 11:01 PM
Re: disk problem
From your vgdisplay o/p, one of your root disk is 'unavailable'
PV Name /dev/dsk/c3t6d0
PV Status unavailable
May be the disk is going bad.Check the status of the disk using dikinfo.
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тАО09-20-2010 11:49 PM
тАО09-20-2010 11:49 PM
Re: disk problem
dd if=/dev/rdsk/c3t6d0 of=/dev/null bs=64k count=100
If you get some error, you should check connectivity cables (maybe pull out the disk from the encloser then put it back). If all looks ok, replace the disk.
Best regards
Horia.
Horia.
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тАО09-20-2010 11:59 PM
тАО09-20-2010 11:59 PM
Re: disk problem
Looks like disk is faulty one from the following o/p.
PV Name /dev/dsk/c3t6d0
PV Status unavailable
Have a look at following document:
http://docs.hp.com/en/5991-1236/When_Good_Disks_Go_Bad_WP.pdf
Regards,
Bhadresh
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тАО09-21-2010 12:24 AM
тАО09-21-2010 12:24 AM
Re: disk problem
/dev/dsk/c3t6d0 seems problematic as already stated others;
You can also check this way;
echo 2400?20X | adb /dev/dsk/c3t6d0
Command output should be as follows (if there are no disk errors).
2400: 44454645 43543031 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
Those counters indicate of BBDIR that BadBlockDirectory any Bad Sector occurs in any disk , these numbers will be registered into these counters;
So, any non zero numbers indicate bad blocks and that disk should be changed on the spot !
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тАО09-22-2010 03:27 AM
тАО09-22-2010 03:27 AM
Re: disk problem
On my system it doesn't work:
# echo 2400?20x | adb /dev/dsk/c0t0d0
cannot open `/dev/dsk/c0t0d0'
2400:
text address not found
#
What could be wrong?
Unix operates with beer.
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тАО09-22-2010 08:33 AM
тАО09-22-2010 08:33 AM
Re: disk problem
PV Name /dev/dsk/c3t6d0
PV Status unavailable
Pvstatus show one of vg00 is unavailable.
do ioscan -fnC disk
verify vgdisplay -v vg00
if still problem persists
so verify disk using dd if=/dev/dsk/c3t6d0 of=/dev/null bs=1024
diskinfo /dev/rdsk/c3t6d0
verify syslog for any io error.
if disk fail confirmed proceed with replacement.
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тАО09-27-2010 04:12 AM
тАО09-27-2010 04:12 AM
Re: disk problem
On my system it doesn't work:
It is probably you put wrong device name as if CD ROM or DVD ROM.
Command syntax is right, try to find correct device name with ;
# ioscan -fnCdisk
then try again