pvcreate error

[Bakang Moatlhodi]

Wehn I run pvcreate on a disk it comes with an error : pvcreate -f /dev/rdsk/c13t2d7
pvcreate: writing LVM record: I/O error

When i run the dd on the disk the output is okay.

Then ran vgreduce but it failed, then i went and deleted the vg but the disk is not released. It still recognised it as attached to vg.
what should I do?

[Franky_1 · Accepted solution]

Hi,

i think i was facing a similar problem some time ago. My solution was the following :
create a new vg
import the disk in the new vg
delete all the lv's
delete the vg
remove the disk from lvm (pvremove)

HTH

Franky

[Steve Steel]

Hi

dd reading is ok but there still could be a disk hardware failure which can be checked by attempting writing to the disk.

NOTE: All data will be lost.

# dd if=/dev/rdsk/[other disk] of=/dev/rdsk/c13t2d7 bs=64k count=160

Should you get I/O error replace the disk .



Steve Steel

[Ravi_8]

Hi

Look like disk problem

#dd if=/dev/rdsk/c13t2d7 of=/dev/null bs=1024k

check for any I/O errors

post the o/p

[Dietmar Konermann]

I use to say "an i/o error is an i/o error is an i/o error". :-) Please verify using tusc if indeed a write(2) to the rdsk device fails. Writing to the same area using dd(1) should show the same problem then.

Best regards...
Dietmar.

[Bakang Moatlhodi]

Hi all
Thanks for your responses, I have tried everything you guys suggested. this the outcome :

Franky, I tried the steps but whae I getto the part where I have to remove the LV I fail, the delete of vg as well fails and the pvremove. I am still stuck

Steve and Ravi
I did dd and the output was:
dd if=/dev/rdsk/c13t2d7 of=/dev/null bs=1024k
209+0 records in
209+0 records out

So I'm still stuck

[Thirumalaimurugan.V]

Bakang,
It looks like disk problem.Initial sectors of the disk might have problem.
Replacement of disk should be soultion.