My junior Deleted vdisk without removng LV

[chindi]

Hi guys,

I wanted to remove a vdisk from my setup...
one of my junior removed the vdisk just ny unmounting the lvol..
nw i would like to remove all traces ..of that vg...i eman lvol and vg....
can i just remove the group files and lvol...???

hpux 11i v2...6600..
strage eva 4k....

[Johnson Punniyalingam]

no clear information

>>one of my junior removed the vdisk just ny unmounting the lvol..
nw i would like to remove all traces ..of that vg<
traces meaning ? -> you want to know procedure to remove volume group ?

>>My junior Deleted vdisk without removng LV<<

can do vgdisplay -v

don't you see any error from "syslog"

[Duncan Edmonstone]

vgexport

should do it...

You'll be stuck with the stale device special files and NO_HW entries in ioscan until your next reboot, but they cause no harm.

HTH

Duncan

[chindi]

Hi John,

root #/ >vgdisplay -v vg_spcb_archive
--- Volume groups ---
VG Name /dev/vg_spcb_archive
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 1
Open LV 1
Max PV 255
Cur PV 1
Act PV 1
Max PE per PV 1016
VGDA 2
PE Size (Mbytes) 32
Total PE 639
Alloc PE 639
Free PE 0
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0

--- Logical volumes ---
LV Name /dev/vg_spcb_archive/lvol1
LV Status available/syncd
LV Size (Mbytes) 20448
Current LE 639
Allocated PE 639
Used PV 1


--- Physical volumes ---
PV Name /dev/dsk/c1t3d4
PV Name /dev/dsk/c3t3d4 Alternate Link
PV Name /dev/dsk/c5t3d4 Alternate Link
PV Name /dev/dsk/c7t3d4 Alternate Link
PV Name /dev/dsk/c11t3d4 Alternate Link
PV Name /dev/dsk/c13t3d4 Alternate Link
PV Name /dev/dsk/c15t3d4 Alternate Link
PV Name /dev/dsk/c17t3d4 Alternate Link
PV Status unavailable
Total PE 639
Free PE 0
Autoswitch On
Proactive Polling On



Nw i would like to remove this vg and lv traces....

ll /dev/*/group gives..
crw-r--r-- 1 root sys 64 0x960000 Sep 15 12:02 /dev/vg_spcb_archive/group

[chindi]

hi Duncan,


root #/ >vgexport vg_spcb_archive
vgexport: Volume group "vg_spcb_archive" is still active.
vgexport: Couldn't export volume group "vg_spcb_archive".
root #/ >vgchange -a n vg_spcb_archive
vgchange: Couldn't deactivate volume group "vg_spcb_archive":
Device busy

[R.K. #]

Hi Chindi,

Unmount /dev/vg_spcb_archive/lvol1
Then deactivate VG
Then do vgexport

Regds..

[chindi]

Hii R.K. ,

Its already unmounted..

[Kapil Jha]

how did he unmounted.
Are you sure its cleanely unmounted.

BR,
Kapil+

[Duncan Edmonstone]

R.K.,

> Unmount /dev/vg_spcb_archive/lvol1


We unmount _filesystems_ not devices (and as chindi pointed out he already did that...)

chindi,

I fear in this position your only hope is to reconstruct the lvmtab:

mv /etc/lvmtab /etc/lvmtab.old
vgscan -v

Unfortunately if you have a _lot_ of LUNs presented from the EVA this will result in the primary paths for each LUN now being all through the same controller, which could mean a small IO performance hit and will need a lot of mucking around with vgreduce/vgextend to fix... how many EVA LUNs do you have on this system?? Do you have a copy of evainfo?

HTH

Duncan

[chindi]

Hi,


yaa m sure...itss cleanly unmounted...