problem with lvcreate

[Vipin Singhal]

# lvcreate -L 18000 -n pmor_data_dat02 /dev/vg72
lvcreate: The logical volume "/dev/vg72/pmor_data_dat02" could not be created:
No such device or address

I am trying to make a LV of 18GB name pmor_data_dat02 in my VG72.

but it is not creating,
please suggest
thanks
vipin

[Muthukumar_5]

Can you check these?

# strings /etc/lvmtab | grep vg72
# vgdisplay -v /dev/vg72

Syntax is correct. May be a problem with the vg.

hth.

[Luk Vandenbussche]

Hi,

Is your vg72 created succesfully now?
Please send the output of

vgdisplay -v vg72
ls -l /dev/vg72

[Vipin Singhal]

#strings /etc/lvmtab
/dev/vg72
/dev/dsk/c26t6d0
/dev/dsk/c29t6d0

# vgdisplay -v /dev/vg72
--- Volume groups ---
VG Name /dev/vg72
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 0
Open LV 0
Max PV 16
Cur PV 1
Act PV 1
Max PE per PV 9215
VGDA 2
PE Size (Mbytes) 4
Total PE 9214
Alloc PE 0
Free PE 9214
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0


--- Physical volumes ---
PV Name /dev/dsk/c26t6d0
PV Name /dev/dsk/c29t6d0 Alternate Link
PV Status unavailable
Total PE 9214
Free PE 9214
Autoswitch On


Yes, you are right,
it was showing the status of PV-
PV Status unavailable

what should i do

[Vipin Singhal]

# ls -l /dev/vg72
total 0
crw-r--r-- 1 root sys 64 0x2c0000 Nov 16 03:28 group

[Luk Vandenbussche]

Hi,

I would restart completly

vgchange -a n vg72
vgexport vg72
mkdir /dev/vg72
mknod /dev/vg72/group c 64 0x2c0000
pvcreate -f /dev/rdsk/c26t6d0
vgcreate vg72 /dev/dsk/c26t6d0
vgextend vg72 /dev/dsk/c29t6d0
lvcreate -L 18000 -n pmor_data_dat02 /dev/vg72

[Vipin Singhal]

# pvdisplay /dev/dsk/c26t6d0
--- Physical volumes ---
PV Name /dev/dsk/c26t6d0
PV Name /dev/dsk/c29t6d0 Alternate Link
VG Name /dev/vg72
PV Status unavailable
Allocatable yes
VGDA 2
Cur LV 0
PE Size (Mbytes) 4
Total PE 9214
Free PE 9214
Allocated PE 0
Stale PE 0
IO Timeout (Seconds) default
Autoswitch On

root@dipper:[/root]
# pvdisplay /dev/dsk/c29t6d0
Device file path "/dev/dsk/c29t6d0" is an alternate path
to the Physical Volume. Using Primary Link "/dev/dsk/c26t6d0".
--- Physical volumes ---
PV Name /dev/dsk/c26t6d0
PV Name /dev/dsk/c29t6d0 Alternate Link
VG Name /dev/vg72
PV Status unavailable
Allocatable yes
VGDA 2
Cur LV 0
PE Size (Mbytes) 4
Total PE 9214
Free PE 9214
Allocated PE 0
Stale PE 0
IO Timeout (Seconds) default
Autoswitch On

Please suggest what shoild i do to make PV- available?
thanks
vipin

[Steven E. Protter]

Hello Vipin,

Make sure all disks show up as claimed in ioscan -fnC disk

I feel one of the physical volumes may be unavailable.

SEP

[Vipin Singhal]

this is output of command #ioscan -fnC disk
disk 931 1/0/8/1/0.21.15.0.0.6.0 sdisk CLAIMED DEVICE DGC CX700WDR10
/dev/dsk/c26t6d0 /dev/rdsk/c26t6d0
disk 932 1/0/8/1/0.21.47.0.0.6.0 sdisk CLAIMED DEVICE DGC CX700WDR10
/dev/dsk/c29t6d0 /dev/rdsk/c29t6d0

Should i run these commands again?
#vgchange -a n vg72
#vgexport vg72
#mkdir /dev/vg72
#mknod /dev/vg72/group c 64 0x2c0000
#pvcreate -f /dev/rdsk/c26t6d0
#vgcreate vg72 /dev/dsk/c26t6d0
#vgextend vg72 /dev/dsk/c29t6d0
#lvcreate -L 18000 -n pmor_data_dat02 /dev/vg72

Please suggest.
thanks
vipin

[Luk Vandenbussche]

Hi Vipin,

Since nothing crucial is in vg72 yet, I should restart to see if you have any other errors during the creation of the volumegroup.

[Muthukumar_5]

Do this:

# pvchange -z y /dev/dsk/c26t6d0
# pvdisplay /dev/dsk/c26t6d0

hth.

[Vipin Singhal]

# pvchange -z y /dev/dsk/c26t6d0
pvchange: Physical volume "/dev/dsk/c26t6d0" could not be changed:
No such device or address

what should i do

[Muthukumar_5 · Accepted solution]

I hope you are getting problems more and more. Just do the Luk's steps again. Restart the steps again. May be the problem with vg creation.

hth.

[Luk Vandenbussche]

Vipin,

Please recreate the volumegroup to see if there are any other errors.

[Vipin Singhal]

Thanks Luk & everybody,

i did these commands again
#vgchange -a n vg72
#vgexport vg72
#mkdir /dev/vg72
#mknod /dev/vg72/group c 64 0x2c0000
#pvcreate -f /dev/rdsk/c26t6d0
#vgcreate vg72 /dev/dsk/c26t6d0
#vgextend vg72 /dev/dsk/c29t6d0
#lvcreate -L 18000 -n pmor_data_dat02 /dev/vg72

now i am able to create the LV

thanks again to everybody
vipin