How to grow a PV?
Hi!
I am running LVM1 ontop of software-RAID (md). I just added a disk to my raid, so my /dev/md0 is about 120G bigger now.
Now my question is: How can I tell LVM to include these additional space into the PV that's already there (on /dev/md0)?
I know it has to be possible because I did it several times (my raid has 9 disks now - it hat 4 disks, some time ago) - I just can't rememer :((( Could someone please give me a hint?
Thanks in advance,
Thomas Kleffel
Quoted 4 lines · Thomas Kleffel
Hi!
I am running LVM1 ontop of software-RAID (md). I just added a disk to my raid, so my
/dev/md0is about 120G bigger now.
Sounds like you added a new disk to the end of a linear MD ?
You could have pvcreate'd it directly to add it to a Volume Group (not adding it to the MD at all).
Quoted 3 lines
Now my question is: How can I tell LVM to include these additional space into the PV that's already there (on
/dev/md0)?
LVM2 supports PV resizing.
Quoted 17 lines
I know it has to be possible because I did it several times (my raid has 9 disks now - it hat 4 disks, some time ago) - I just can't rememer :((( Could someone please give me a hint?
Thanks in advance,
Thomas Kleffel
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Signature · 15 lines
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Heinz -- The LVM Guy --
*** Software bugs are stupid.
Nevertheless it needs not so stupid people to solve them ***
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Heinz Mauelshagen Sistina Software Inc.
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[email protected] +49 2626 141200
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Quoted 6 lines · Heinz J . Mauelshagen
Sounds like you added a new disk to the end of a linear MD ?
You could have pvcreate'd it directly to add it to a Volume Group (not adding it to the MD at all).
Not exactly - I added a new disk to a raid-5 MD. I wanted it to be in the raid-array for beeing protected from a single-disk-failure.
Quoted 2 lines
LVM2 supports PV resizing.
Ok, thanks - I'm going to try this now...
Bye,
Thomas
Hi again...
...I'm sorry for having to ask again...
Quoted 1 line · Heinz J . Mauelshagen
LVM2 supports PV resizing.
I just installed 1.95.15 and pvresize tells me "Command not implemented yet." "pvresize --version" gives me the following:
Quoted 3 lines
LVM version: 1.95.15 (2003-01-10) Library version: 0.96.08-ioctrl (2003-03-27) Driver version: 1.0.10
Did I fetch an old version? Or do I need to get some bleeding-edge-stuff from the CVS? Or am I simply too stupid? :)
Thanks for your help,
Thomas Kleffel
Quoted 3 lines · Thomas Kleffel
Hi again...
...I'm sorry for having to ask again...
No problem.
Quoted 9 lines
Quoted 1 line · Heinz J . Mauelshagen
LVM2 supports PV resizing.
I just installed 1.95.15 and pvresize tells me "Command not implemented yet."
"pvresize --version" gives me the following:
Quoted 7 lines
Quoted 3 lines
LVM version: 1.95.15 (2003-01-10) Library version: 0.96.08-ioctrl (2003-03-27) Driver version: 1.0.10Did I fetch an old version? Or do I need to get some bleeding-edge-stuff from the CVS?
Or am I simply too stupid? :)
No, you need to use pvcreate+vgcfgrestore with LVM2. Make a copy of your LVM metadata before you try it ;) (dd if=/dev/md0 of=md0.vgda bs)1k count=4k)
Quoted 13 lines
Thanks for your help,
Thomas Kleffel
_______________________________________________
linux-lvm mailing list
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read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
Signature · 15 lines
Regards,
Heinz -- The LVM Guy --
*** Software bugs are stupid.
Nevertheless it needs not so stupid people to solve them ***
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Heinz Mauelshagen Sistina Software Inc.
Senior Consultant/Developer Am Sonnenhang 11
56242 Marienrachdorf
Germany
[email protected] +49 2626 141200
FAX 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-Hi!
Quoted 8 lines
Quoted 8 lines
I just installed 1.95.15 and pvresize tells me "Command not implemented yet."
"pvresize --version" gives me the following:Quoted 3 lines
LVM version: 1.95.15 (2003-01-10) Library version: 0.96.08-ioctrl (2003-03-27) Driver version: 1.0.10
Quoted 7 lines
Quoted 3 lines
Did I fetch an old version? Or do I need to get some bleeding-edge-stuff from the CVS?
Or am I simply too stupid? :)No, you need to use pvcreate+vgcfgrestore with LVM2. Make a copy of your LVM metadata before you try it ;) (dd if=/dev/md0 of=md0.vgda bs)1k count=4k)
It worked perfectly :)
Thank you!
Regard,
Thomas
Hi again,
after a bit of research I found out, that I resized my PV some time ago using the pvresize command, that was available in lvm_1.1-rc2.
At the moment I am using 1.0.7 (gentoo). My problem is now that lvm_1.1-rc2 seems to have disappeared. I read that it was buggy, but worked for me at least 4 times. Could someone please tell me, where I could get lvm_1.1? This would save me a lot of work.
Thanks in advance,
Thomas Kleffel
Quoted 8 lines · I wrote:
Hi!
I am running LVM1 ontop of software-RAID (md). I just added a disk to my raid, so my
/dev/md0is about 120G bigger now.Now my question is: How can I tell LVM to include these additional space into the PV that's already there (on
/dev/md0)?I know it has to be possible because I did it several times (my raid has 9 disks now - it hat 4 disks, some time ago) - I just can't rememer :((( Could someone please give me a hint?