Can't pvcreate on disk

[Jonathan Fife]

Hi all,

I'm trying to mirror vg00 on one of our HP-UX 11.0 systems. Disk c1t2d0 currently holds vg00, and c2t2d0 is unused as far as I can tell. This is an older server whose history I am unfamiliar with.

ioscan -fnc disk shows:
disk 1 0/0/2/0.2.0 sdisk CLAIMED DEVICE SEAGATE ST318404LC
/dev/dsk/c2t2d0 /dev/rdsk/c2t2d0

# pvdisplay /dev/dsk/c2t2d0
pvdisplay: Couldn't find the volume group to which
physical volume "/dev/dsk/c2t2d0" belongs.
pvdisplay: Cannot display physical volume "/dev/dsk/c2t2d0".

However, when I try to do a pvcreate -B on it I get:

# pvcreate -B /dev/rdsk/c2t2d0
pvcreate: The physical volume already belongs to a volume group

What am I missing?

[Marvin Strong · Accepted solution]

pvdisplay /dev/dsk/c2t2d0

just to make sure its not used.
may want to strings /etc/lvmtab also

if its not used and your sure

pvcreate -fB /dev/rdsk/c2t2d0

to force it.

[spex]

Hi Jonathan,

# strings /etc/lvmtab | grep c2t2d0

Does c2t2d0 show up?

Also try:

# lvdisplay -v /dev/vgxx/lvolx | head -30

for each logical volume. Does c2t2d0 appear anywhere?

PCS

[James R. Ferguson]

Hi Johathan:

At one time, the disk was used. Try:

# pvcreate -f -B /dev/rdsk/c2t2d0

Regards!

...JRF...

[Jonathan Fife]

It doesn't show up in strings /etc/lvmtab, or in any lv/vgdisplays.

I really just wanted to make sure I wasn't blowing away something actually in use somewhere I couldn't see before I did the pvcreate -fB.

Thanks for the reassurance!

[Jonathan Fife]

# strings /etc/lvmtab | grep c2t2d0
# pvcreate -fB /dev/rdsk/c2t2d0
Physical volume "/dev/rdsk/c2t2d0" has been successfully created.
#