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тАО09-15-2009 03:42 AM
тАО09-15-2009 03:42 AM
VG extension
I have a doubt in vgextension,
I have done a vg extension in one of our hpux server which is in production environment.
activity is extending a filesystem from 10GB to 15 GB (increasing 5GB )of particular filesystem
i have 639 PE in a VG Each PE= 16 MB
639x16=10224 MB
i need to extend 5GB (5120 mb)
so 10224+5120 = 15344 mb
when i execute
lvextend -L 15344 /dev/vgname/lvname
it throws error as
lvextend: Not enough free physical extents available.
Logical volume "/dev/vgsappbi/lvsappbi" could not be extended.
Failure possibly caused by strict allocation policy
then i executed
lvextend -L 15328 /dev/vgname/lvname
it extended successfully
what happened to 15344 -15328 = 16 MB (1 PE)
can any one clear my doubt ? how its happened
Please....
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тАО09-15-2009 03:56 AM
тАО09-15-2009 03:56 AM
Re: VG extension
Could you post the output of
# vgdisplay -v vg_name
# lvdisplay -v /dev/vg_name/lv_name
Regards,
Robert-Jan
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тАО09-15-2009 04:00 AM
тАО09-15-2009 04:00 AM
Re: VG extension
lvdisplay -v /dev/vgname/lvname
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тАО09-15-2009 04:10 AM
тАО09-15-2009 04:10 AM
Re: VG extension
the thing is when it alloted 10GB the available PE was only 639 =10224,
10GB =10240-10224 =16 here also i missing 1PE
and when i extend 5GB 5120MB
that is 10+5 =15GB
10240+5120 =15360MB
But here is
10224 +5104 =15328 MB
each time 1 PE is losing
LV availability is only 639 when it was 10 GB
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тАО09-15-2009 04:21 AM
тАО09-15-2009 04:21 AM
Re: VG extension
#
# vgdisplay -v /dev/vgsappbi
--- Volume groups ---
VG Name /dev/vgsappbi
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 1
Open LV 1
Max PV 50
Cur PV 1
Act PV 1
Max PE per PV 1016
VGDA 2
PE Size (Mbytes) 16
Total PE 639
Alloc PE 639
Free PE 0
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0
--- Logical volumes ---
LV Name /dev/vgsappbi/lvsappbi
LV Status available/syncd
LV Size (Mbytes) 10224
Current LE 639
Allocated PE 639
Used PV 1
--- Physical volumes ---
PV Name /dev/dsk/c4t1d6
PV Name /dev/dsk/c6t1d6 Alternate Link
PV Name /dev/dsk/c8t1d6 Alternate Link
PV Name /dev/dsk/c10t1d6 Alternate Link
PV Status available
Total PE 639
Free PE 0
Autoswitch On
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тАО09-15-2009 04:52 AM
тАО09-15-2009 04:52 AM
Re: VG extension
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тАО09-15-2009 04:55 AM
тАО09-15-2009 04:55 AM
Re: VG extension
Did anybody have any idea about this and help me out
Thanks in advance......
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тАО09-15-2009 05:26 AM
тАО09-15-2009 05:26 AM
Re: VG extension
pvdisplay /dev/dsk/cXtXd0 to see if you still can see free PE ?
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тАО09-15-2009 05:34 AM
тАО09-15-2009 05:34 AM
Re: VG extension
if you cannot see your disk cXtXdX with command
# pvdisplay /dev/dsk/cXtXdX
issue the command:
# vgdisplay -v |grep "PV Name" to see if your disk is in the list, if not it is not a member of LVM Group.
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тАО09-15-2009 05:47 AM
тАО09-15-2009 05:47 AM