lvextend fail on hpux 11.31

[La_4]

H,

I amtrying to add another 10gb disk to an existing logical volume 155gb. it fails. I also did vgmodify -r -v -o vgname and still not working.

below is the output of command lines
root@server5:/home/root$ lvextend -L 169808 /dev/vgicastst/lvdata
lvextend: Not enough free physical extents available.
Logical volume "/dev/vgicastst/lvdata" could not be extended.

root@server5:/home/root$ vgdisplay vgicastst
--- Volume groups ---
VG Name /dev/vgicastst
VG Write Access read/write
VG Status available, exclusive
Max LV 255
Cur LV 8
Open LV 8
Max PV 32
Cur PV 17
Act PV 17
Max PE per PV 14332
VGDA 34
PE Size (Mbytes) 4
Total PE 59019
Alloc PE 51411
Free PE 7608
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0
VG Version 1.0
VG Max Size 1834496m
VG Max Extents 458624

thanks in advance.

[Berd]

La,

/dev/vgicastst is a volume group not a logical volume.

Berd

[La_4]

That's right vgicastst is volume group and lvdata is logical volume in vgicastst.

I try to add 10gb to lvdata to increase disk space to 166gb from 155gb and error is not enough physical extents. How to determine of how many physical extents that i need to accomodate this 10gb?

Thanks,

[melvyn burnard]

well what does the lvdisplay give you? if it has Strict settings, that may be the issue.
From the above you have 7608 PE's available at 4MB/PE, or 28GB.
Check the lvdisplay output, or post here

[La_4]

root@ottux005:/home/root$ lvdisplay /dev/vgicastst/lvdata
--- Logical volumes ---
LV Name /dev/vgicastst/lvdata
VG Name /dev/vgicastst
LV Permission read/write
LV Status available/syncd
Mirror copies 2
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 159568
Current LE 39892
Allocated PE 39893
Stripes 0
Stripe Size (Kbytes) 0
Bad block off
Allocation non-strict
IO Timeout (Seconds) default

[宋明哲]

U have two Mirror copies? and pls share Ur Vgdisplay -v to list the Free PE of PV;

If Ur Free PE of 3 PV cannot offer enough PE, then the lvextend will fail;

[La_4]

Hi,

Some some reason, we have mirror copies = 2 and don't know why is there. All of our lvs are mirrored.

root@server5:/home/root$ vgdisplay -v vgicastst
--- Volume groups ---
VG Name /dev/vgicastst
VG Write Access read/write
VG Status available, exclusive
Max LV 255
Cur LV 8
Open LV 8
Max PV 32
Cur PV 17
Act PV 17
Max PE per PV 15612
VGDA 34
PE Size (Mbytes) 4
Total PE 59018
Alloc PE 51411
Free PE 7607
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0
VG Version 1.0
VG Max Size 1998336m
VG Max Extents 499584

--- Logical volumes ---
LV Name /dev/vgicastst/lvhome
LV Status available/syncd
LV Size (Mbytes) 4
Current LE 1
Allocated PE 1
Used PV 1

LV Name /dev/vgicastst/lvora
LV Status available/syncd
LV Size (Mbytes) 17000
Current LE 4250
Allocated PE 4251
Used PV 4

LV Name /dev/vgicastst/lvdata
LV Status available/syncd
LV Size (Mbytes) 159568
Current LE 39892
Allocated PE 39893
Used PV 15

LV Name /dev/vgicastst/lvexport
LV Status available/syncd
LV Size (Mbytes) 28800
Current LE 7200
Allocated PE 7200
Used PV 7

LV Name /dev/vgicastst/lvinfohtst
LV Status available/syncd
LV Size (Mbytes) 4
Current LE 1
Allocated PE 1
Used PV 1

LV Name /dev/vgicastst/lvinfohtstdata
LV Status available/syncd
LV Size (Mbytes) 252
Current LE 63
Allocated PE 63
Used PV 1

LV Name /dev/vgicastst/lvgrntmhome
LV Status available/syncd
LV Size (Mbytes) 4
Current LE 1
Allocated PE 1
Used PV 1

LV Name /dev/vgicastst/lvoraxhome
LV Status available/syncd
LV Size (Mbytes) 4
Current LE 1
Allocated PE 1
Used PV 1


--- Physical volumes ---
PV Name /dev/disk/disk615
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk416
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk399
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk641
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk642
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk640
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk407
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk658
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk657
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk656
PV Status available
Total PE 3472
Free PE 848
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk659
PV Status available
Total PE 3472
Free PE 3189
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk593
PV Status available
Total PE 3471
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk592
PV Status available
Total PE 3471
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk591
PV Status available
Total PE 3471
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk589
PV Status available
Total PE 3471
Free PE 99
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk590
PV Status available
Total PE 3471
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk684
PV Status available
Total PE 3471
Free PE 3471
Autoswitch On
Proactive Polling On

[Terry McLean]

Hi,

Some some reason, we have mirror copies = 2 and don't know why is there. OTHER LOGICAL VOLUMES IN THIS VG ARE NOT mirrored, ONLY THIS ONE DOES.

root@server5:/home/root$ vgdisplay -v vgicastst
--- Volume groups ---
VG Name /dev/vgicastst
VG Write Access read/write
VG Status available, exclusive
Max LV 255
Cur LV 8
Open LV 8
Max PV 32
Cur PV 17
Act PV 17
Max PE per PV 15612
VGDA 34
PE Size (Mbytes) 4
Total PE 59018
Alloc PE 51411
Free PE 7607
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0
VG Version 1.0
VG Max Size 1998336m
VG Max Extents 499584

--- Logical volumes ---
LV Name /dev/vgicastst/lvhome
LV Status available/syncd
LV Size (Mbytes) 4
Current LE 1
Allocated PE 1
Used PV 1

LV Name /dev/vgicastst/lvora
LV Status available/syncd
LV Size (Mbytes) 17000
Current LE 4250
Allocated PE 4251
Used PV 4

LV Name /dev/vgicastst/lvdata
LV Status available/syncd
LV Size (Mbytes) 159568
Current LE 39892
Allocated PE 39893
Used PV 15

LV Name /dev/vgicastst/lvexport
LV Status available/syncd
LV Size (Mbytes) 28800
Current LE 7200
Allocated PE 7200
Used PV 7

LV Name /dev/vgicastst/lvinfohtst
LV Status available/syncd
LV Size (Mbytes) 4
Current LE 1
Allocated PE 1
Used PV 1

LV Name /dev/vgicastst/lvinfohtstdata
LV Status available/syncd
LV Size (Mbytes) 252
Current LE 63
Allocated PE 63
Used PV 1

LV Name /dev/vgicastst/lvgrntmhome
LV Status available/syncd
LV Size (Mbytes) 4
Current LE 1
Allocated PE 1
Used PV 1

LV Name /dev/vgicastst/lvoraxhome
LV Status available/syncd
LV Size (Mbytes) 4
Current LE 1
Allocated PE 1
Used PV 1


--- Physical volumes ---
PV Name /dev/disk/disk615
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk416
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk399
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk641
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk642
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk640
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk407
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk658
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk657
PV Status available
Total PE 3472
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk656
PV Status available
Total PE 3472
Free PE 848
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk659
PV Status available
Total PE 3472
Free PE 3189
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk593
PV Status available
Total PE 3471
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk592
PV Status available
Total PE 3471
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk591
PV Status available
Total PE 3471
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk589
PV Status available
Total PE 3471
Free PE 99
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk590
PV Status available
Total PE 3471
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk684
PV Status available
Total PE 3471
Free PE 3471
Autoswitch On
Proactive Polling On

[S. Ney]

What does the distribution of the logical volume look like when doing your lvdisplay command?

For example on my mirrored lvol:
LV Status available/syncd
Mirror copies 1
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 7168
Current LE 448
Allocated PE 896
Stripes 0
Stripe Size (Kbytes) 0
Bad block on
Allocation strict
IO Timeout (Seconds) default

--- Distribution of logical volume ---
PV Name LE on PV PE on PV
/dev/dsk/c0t1d0 448 448
/dev/dsk/c1t0d0 448 448

I notice that your policy is non-strict, make sure your mirrors aren't on the same disk. Also if not needed you can always reduce the mirror(s):
umount from mount point
lvreduce -m 0 /dev/vgicastst/lvdata /dev/dsk/(disk #)