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тАО09-09-2002 11:05 AM
тАО09-09-2002 11:05 AM
Adding disks to VG and Extending Stripped LV
I have to add 4 disks to a volume group and lvextend a stripped logical volume: Its file system is at 94%.
vgextend /dev/vg /dev/dsk/c#t#d#, etc.
lvextend -L ### /dev/dsk/c#t#d#, etc.
Anything missing?
No mirrors, strict allocation, stripe size = 32 KB.
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тАО09-09-2002 11:10 AM
тАО09-09-2002 11:10 AM
Re: Adding disks to VG and Extending Stripped LV
Marty
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тАО09-09-2002 11:13 AM
тАО09-09-2002 11:13 AM
Re: Adding disks to VG and Extending Stripped LV
You can extend a striped logical volume as long as the same number of disks over which you are already striped are used to extend the logical volume.
Regards!
...JRF...
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тАО09-09-2002 11:14 AM
тАО09-09-2002 11:14 AM
Re: Adding disks to VG and Extending Stripped LV
Pete
Pete
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тАО09-09-2002 11:15 AM
тАО09-09-2002 11:15 AM
Re: Adding disks to VG and Extending Stripped LV
extendfs -F vxfs /dev/vg0#/rlv#
If you have OnlineJFS, then it would be
fsadm -b size_in_kb /mount_point
-Sri
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тАО09-09-2002 11:18 AM
тАО09-09-2002 11:18 AM
Re: Adding disks to VG and Extending Stripped LV
If you have used the PVG in existing volume group you may want to specify the same while extending the VG.
3vgextend -g PVG0 /dev/vgX /dev/dsk/cxtydz...
Thanks.
Prashant
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тАО09-09-2002 11:23 AM
тАО09-09-2002 11:23 AM
Re: Adding disks to VG and Extending Stripped LV
You can extend a striped logical volume as long as the same number of disks over which you are already striped are used to extend the logical volume.
I am at 94% full on a vxfs file system and need to add four addional disks because four is the current number used in the logical volume. I'll end up with 8 disks in the logical volume. Are you saying I can't do this and then lvextend over the newly added four disks?
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тАО09-09-2002 11:34 AM
тАО09-09-2002 11:34 AM
Re: Adding disks to VG and Extending Stripped LV
No, I am saying that if you are already stripped over four physical volumes, then you will need physical extents on *four* physical volumes again. If your logical volume spans four disks without any free extents, then add ('vgextend') four physical disks and 'lvextend' the logical volume to them.
Regards!
...JRF...
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тАО09-09-2002 12:32 PM
тАО09-09-2002 12:32 PM
Re: Adding disks to VG and Extending Stripped LV
I also use stripped lvs on my systems with 4 PVs in it.
To make sure no one adds odd number of disks in VG I restrict the VG to max 4PVs. while creating. Make sure you do not have such imposed limitation in your VG.
Just a thought.
Prashant.
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тАО11-02-2009 07:10 AM
тАО11-02-2009 07:10 AM