Extend PV On Single VDISK From EVA

[AZayed]

Dears,
Good day,

I have the following scenario: VDISK on EVA with 900 GB, I want to move it from FC to FATA and increase the size to 2TP. I created a mirror on EVA with 900 GB the I break the relation and present this new VDISK copy to HP-UX 11.23 and use vgchgid to import the mirror.

Now, I will increase the VDISK on EVA to 2TB, how can I make HP-UX VG detect the new size.

On the old VG the PE Size is 32 MB.

Thanks a lot.

[Torsten.]

You need to use "vgmodify" to adjust LVM.

[AZayed]

Hi Toresten,

Yes, using vgmodify I was able to extend the LV to 1TB. Can you guide me throw it?

Thanks

[P Arumugavel]

Go through this:

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c02273773/c02273773.pdf

Rgds...

[AZayed]

Hi Folks,

This is what I have now, is it possible to change the PE Size or to Extend the LV up to 2TB.

Thanks a lot.

# vgdisplay /dev/vgDONE
--- Volume groups ---
VG Name /dev/vgDONE
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 1
Open LV 1
Max PV 28
Cur PV 1
Act PV 1
Max PE per PV 65535
VGDA 2
PE Size (Mbytes) 32
Total PE 65502
Alloc PE 32767
Free PE 32735
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0


# lvdisplay /dev/vgDONE/DONE
--- Logical volumes ---
LV Name /dev/vgDONE/DONE
VG Name /dev/vgDONE
LV Permission read/write
LV Status available/syncd
Mirror copies 0
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 1048544
Current LE 32767
Allocated PE 32767
Stripes 0
Stripe Size (Kbytes) 0
Bad block on
Allocation strict
IO Timeout (Seconds) default


# lvextend -L 2097088 /dev/vgDONE/DONE
lvextend: Not enough free physical extents available.
Logical volume "/dev/vgDONE/DONE" could not be extended.
Failure possibly caused by strict allocation policy
#

[Ismail Azad · Accepted solution]

Hi,

It's been a while since I did some math....

Total P.E * Extent size = Capacity

In your case...
65502*32=2096064

> # lvextend -L 2097088 /dev/vgDONE/DONE

2097088> 2096094.

:). I sincerly hope my math is not wrong. Don't forget to assign points....

Regards
Ismail Azad

[AZayed]

Hi,

It give me the same error.

# lvextend -L 2096094 /dev/vgDONE/DONE
Warning: rounding up logical volume size to extent boundary at size "2096096" MB.
lvextend: Not enough free physical extents available.
Logical volume "/dev/vgDONE/DONE" could not be extended.
Failure possibly caused by strict allocation policy
#

[Ismail Azad]

Hi,

How about you try a size like 2090000. Perhaps your playing somewhere close to the boundary... As the size it was rounding upto was greater than capacity.. 2096096> 2096094....

Regards
Ismail Azad

[AZayed]

Thanks Ismail, I was able to extend the LV successfully.

Thanks

[AZayed]

lvextend + fsadm