How can i increase the virtual disk size in IVM ?

[Tushar_hiwase]

Hi,

I have deployed one vm on my hpux 11iv3 host using Integrity virtual machines (IVM4.3).  I have created 200gb lv for my vm guest as virtual disk. Now i am running out of space on vm. How can i increase my virtual disk space ?

Do i need to poweroff the vm and extend the corresponding lv size to increase the virtual disk ?
Is there chances to get my vm corrupt  while following above procedure ?

Is there any another procedure to increase my virtual disk ?

Below are some details :

[Storage Interface Details]
Guest                                 Physical
Device  Adaptor    Bus Dev Ftn Tgt Lun Storage   Device
======= ========== === === === === === ========= =========================
disk    avio_stor    0   0   0   0   0 lv        /dev/guest-lvs/rguest1




# lvdisplay /dev/guest-lvs/guest1
--- Logical volumes ---
LV Name                     /dev/guest-lvs/guest1
VG Name                     /dev/guest-lvs
LV Permission               read/write
LV Status                   available/syncd
Mirror copies               0
Consistency Recovery        MWC
Schedule                    parallel
LV Size (Mbytes)            200000
Current LE                  6250
Allocated PE                6250
Stripes                     0
Stripe Size (Kbytes)        0
Bad block                   NONE
Allocation                  strict
IO Timeout (Seconds)        default
Number of Snapshots         0

#

thanks in advance

[Stan_M · Accepted solution]

I'd recommend to add additional space as a separate virtual disk. It's always good idea to separate data

from boot disk anyway.

here is what HPVM admin says on the subject:

On the VSP, do not extend a logical volume (LVM or VxVM) used as a backing store for a guest
root disk. If you do this, the guest panics on its next reboot with the following error:
System panic: all VFS_MOUNTROOTs failed: Need DRIVERS.
The guest should be able to boot if the logical volume is reverted (using lvreduce in case of LVM)
to its original size. If this fails, the guest root device has been corrupted, and the guest operating
system must be reinstalled.
An AVIO logical volume backing store not used as a root disk can be extended while the guest is
online. For HP-UX 11i v3 guests using AVIO, the guest is notified of the increased size of the
backing store for logical volumes as well as raw disks, and the guest can take the appropriate
actions to use the larger size.
After you extend the logical volume, use operating system commands on the guest to extend its
file system.

HTH

Stan