create vg01

[Teck Sim]

# vgdisplay
--- Volume groups ---
VG Name /dev/vg00
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 8
Open LV 8
Max PV 16
Cur PV 1
Act PV 1
Max PE per PV 2000
VGDA 2
PE Size (Mbytes) 4
Total PE 1023
Alloc PE 296
Free PE 727
Total PVG 0

This is what I did:
#vgdisplay

target 1 8/16/5.2 tgt CLAIMED DEVICE
disk 0 8/16/5.2.0 sdisk CLAIMED DEVICE TOSHIBA CD-ROM XM-570
1TA
/dev/dsk/c0t2d0 /dev/rdsk/c0t2d0
target 2 8/16/5.5 tgt CLAIMED DEVICE
disk 1 8/16/5.5.0 sdisk CLAIMED DEVICE SEAGATE ST34572N
/dev/dsk/c0t5d0 /dev/rdsk/c0t5d0
target 3 8/16/5.6 tgt CLAIMED DEVICE
disk 2 8/16/5.6.0 sdisk CLAIMED DEVICE SEAGATE ST34572N
/dev/dsk/c0t6d0 /dev/rdsk/c0t6d0


# mkdir /dev/vg01
# mknod /dev/vg01/group c 64 0x010000
# ll /dev/*/group
crw-r----- 1 root root 64 0x000000 Jun 11 1996 /dev/vg00/group
crw-rw-r-- 1 root sys 64 0x010000 Jun 26 20:41 /dev/vg01/group

#vgcreate /dev/vg01 /dev/dsk/c0t5d0
Increased the number of physical extents per physical volume to 1023.
vgcreate: Volume group "/dev/vg01" could not be created:
Device busy

Did I do anything wrong here.
Please help.
Thanks.

[Stefan Farrelly · Accepted solution]

You need to pvcreate your drive first.

pvcreate /dev/rdsk/c0t5d0

If it still returns an error and your'e absolutely sure this drive isnt already in use then add the -f option

pvcreate -f /dev/rdsk/c0t5d0

Then create your vg.

[Pete Randall]

What directory are you in now?
Do a "pwd".

Pete

[PIYUSH D. PATEL]

Hi,

You should start with

1. pvcreate -f /dev/rdsk/c0t5d0

Then use the above commands. The commands you have used are right.

After doing the pvcreate execute the

#vgcreate /dev/vg01 /dev/dsk/c0t5d0

Piyush

[Teck Sim]

#pwd
#/
Thanks.

[Pete Randall]

That's why you've got that fancy headgear, Stefan. I completely missed that.

;^)

Pete

[Stefan Saliba]

first do a vgdisplay -v vg00 and check at the bottom which physical volumes are in this vg. In your case you should only have c0t6d0. if you have c0t5d0 as well then you cannot create vg01 using that disk.

Secondly I think you forgot to pvcreate the disk.

use pvcreate only if you are sure that the disk is not a member of the other vg i.e. vg00.

If you send an output of vgdisplay -v vg00 we can check.

after the pvcreate try again the vgcreate

good luck
stefan

[PIYUSH D. PATEL]

Hi,

Execute the following command :

# strings /etc/lvmtab and see that the /dev/dsk/c0t5d0 is not seen in the output.

Piyush

[Jeff Schussele]

Hi Teck,

Do a
#pvdisplay -v /dev/dsk/c0t5d0
to determine if there is an LVM structure on that disk.
If not then you need to do this before the vgcreate
#pvcreate /dev/rdsk/c0t5d0 (Note: you may need a -f parameter if there's been an LVM structure on it in the past also note the "rdsk")

HTH,
Jeff

[Teck Sim]

# pvcreate /dev/rdsk/c0t5d0
pvcreate: The physical volume already belongs to a volume group
# pvcreate -f /dev/rdsk/c0t5d0
Physical volume "/dev/rdsk/c0t5d0" has been successfully created.
# vgcreate /dev/vg01 /dev/dsk/c0t5d0
Increased the number of physical extents per physical volume to 1023.
Volume group "/dev/vg01" has been successfully created.
Volume Group configuration for /dev/vg01 has been saved in /etc/lvmconf/vg01.cof

and what should I do next? I am trying to create a new file system, let say /dev/vg01/d01 and /dev/vg01/d02 and both will be mounted on /d01 and /d02 respectively.
Thanks.