Increasing Volume group size

[Randy Durden]

I now have it as a non-strict allocation. I used lvchange -s n . For some reason it is not seeing the new 60G sized LUN.
When I run the lvextend now it says

lvextend: Not enough free physical extents available.
Logical volume "/dev/vg_audev_backup/audev_backup" could not be extended.

[Pete Randall]

The "strict" allocation policy, or lack thereof, only applies to mirrored LVs. You need to change the contiguous attribute with the -C switch.


Pete

[Randy Durden]

I'm sorry I forgot to post that I did run it with the -C. New lvdisplay below.

--- Logical volumes ---
LV Name /dev/vg_audev_backup/audev_backup
VG Name /dev/vg_audev_backup
LV Permission read/write
LV Status available/syncd
Mirror copies 0
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 20000
Current LE 5000
Allocated PE 5000
Stripes 0
Stripe Size (Kbytes) 0
Bad block on
Allocation non-strict
IO Timeout (Seconds) default

[Pete Randall]

Can you post the exact lvextend command you're using?


Pete

[Randy Durden]

lvextend -L 60000 /dev/vg_audev_backup/audev_backup

[Pete Randall]

You don't have that many extents available. The new volume gave you 5119 more 4MB extents and your asking for an additional 40000MB or 60000 total. Somewhere around 40,000 total should work.


Pete

[Randy Durden]

40,000 took. When I do a bdf it is still showing 100% full. Do I need unmount the directory and then mount it again?

[Pete Randall]

Now you need to extend the file system that resides within the logical volume: extendfs. See the example in the extendfs man page.


Pete

[blu.karthi]

Dear randy,
you have not sufficent Free PE Extents for to create logical volume of size 60 GB

accourding to free PE you can extend upto 40GB Size of that logicalvolume

[Randy Durden]

Pete,

Thanks for all the help. The customer seems satisfied for now. I don't know why it would not recognize the entire 60G LUN.

[Pete Randall]

Just a restriction left over from the old days. Disks never used to grow back then.

And - you're welcome!


Pete

[blu.karthi]

because PE per PV is for that volume group is 5119. so, it will add only 20GB from that 60GB LUN to that VG

Max PE per PV 5119
PE Size (Mbytes) 4

5119 * 4 = 20000M