Open lvol

[Raymond R Walsh Jr]

I have a disk that had been the boot disk for a B2600 and I need it in a C3600 with all that had been on the original disk. The header shows that there are 9 lvol's present but none are open and therefore are not accessible. How do you open an lvol?

[Patrick Wallek]

You mount it.

Assuming the vg is active (if not do a 'vgchange -a y vg??') just do:

# mount /dev/vg??/lvol? /mnt1
# mount /dev/vg??/lvol?+1 /mnt2
etc.....

[Raymond R Walsh Jr]

I tried the mount and get an error stating that there is no such directory or file.

[Mel Burslan]

I am not sure if I understood you correctly but if you are only interested in recovering the contents of the old b2600 boot disk on an already running c3600, then, provided the old system is still available, put the disk back in:
Do a vgexport:
# vgexport -v -m /tmp/vg00.map vg00

copy vg00.map to new system
move disk into the new system
make sure ioscan sees it
run command
insf -H

then do a vgimport:

# vgimport -v -m /tmp/vg00.map vgXX /dev/dsk/


if you are trying to boot your c3600 from an old b2600 boot disk, then you need to boot the machine to lvm maintenance mode

interrupt autoboot in 10 sec.s wait time
say yes to interact with ipl question

at ISL> prompt

hpux -lm

when the system comes up

do a vgexport of vg00
do a vgimport of vg00

reboot and let it come up as it normally should. Provided the h/w architectures are not too far off, you may succeed.

[Helen French]

Did you vgimport the disk? If not, create a new VG and import the disk to it. You need to activate the vg (vgchange -a y) after importing and then check the vg and lv status with 'vgdisplay' and 'lvdisplay' respectively.

If everything found okay, then create mount points (mkdir /dir) and then mount it with mount command. If you want to make it permanent, add the mount points in /etc/fstab file.

[Sanjay_6]

Hi,

Once the vg is activated the lvs are active. Until that time the lvs are not accessible. If you want to use this disk and the lvs on it, do a vgscan or do a vgimport. Do man vgscan / vgimport for more help.

Hope this helps.

Regds

[Raymond R Walsh Jr]

Thank you for the responses, I will put them
to the test and reply with the results.

Regards