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Best way to create a 540GB LVM Volume?

linux-lvm Austin Gonyou 4 participants 5 messages Jun 24, 2002

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#0 lore raw

I've got 14 FC1 disks in a PV660F. I want to take 7 of them and make a large volume. I can't seem to make a > 450 GB volume though, even though lvdisplay is showing xxMB PE free.

I'm using default 4mb and also 8mb extentsize when creating the VG. Please advise.

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Austin Gonyou <[email protected]>
Coremetrics, Inc.
#1 lore raw
Quoted 5 lines · Austin Gonyou

I've got 14 FC1 disks in a PV660F. I want to take 7 of them and make a large volume. I can't seem to make a > 450 GB volume though, even though lvdisplay is showing xxMB PE free.
I'm using default 4mb and also 8mb extentsize when creating the VG. Please advise.

vgcreate -s8m doesn't work?

Did for me.

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#2 lore raw
In reply to Austin Gonyou

use bigger physical extents to create volumes up to the (LVM-limited?) max size of 1TB. my physical extents are (I think) 64MB so logically I should be able to make an 8TB volume (no pun intended) but presumably due to wackiness in the kernel (VFS or VM, don't know) Heinz chose not to allow that. probably preventing me from shooting myself in the foot.

I think this is in the FAQ, regardless, a careful read of the manpage will reveal this and other useful tidbits. I think you will have to recreate your VG and/or LV, but the initialized PV's should be okay.

try it and see :-)

Quoth Austin Gonyou:

Quoted 11 lines

I've got 14 FC1 disks in a PV660F. I want to take 7 of them and make a large volume. I can't seem to make a > 450 GB volume though, even though lvdisplay is showing xxMB PE free.

I'm using default 4mb and also 8mb extentsize when creating the VG. Please advise.

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Austin Gonyou <[email protected]>
Coremetrics, Inc.
Signature · 4 lines
     "Any good rope will last you a lifetime,
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#3 lore raw
In reply to Austin Gonyou
Quoted 3 lines · Austin Gonyou

I've got 14 FC1 disks in a PV660F. I want to take 7 of them and make a large volume. I can't seem to make a > 450 GB volume though, even though lvdisplay is showing xxMB PE free.

http://tech.sistina.com/Pages/faq.php?action=view&ID=39

Is that your issue?

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Ben Scott <[email protected]>
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#4 lore raw

No..this is not my issue. As stated, I set -s 8m(16m even) and when I try to create a volume > 450GB, I'm not allowed. lvcreate that there are no more allocatable PEs but vgdisplay shows there are.

I'm using LVM 1.0.3 from 2.4.19-pre10, soon RC1.

Quoted 11 lines · On Mon, 2002-06-24 at 14:38, [email protected] wrote:
Quoted 1 line · Austin Gonyou

I've got 14 FC1 disks in a PV660F. I want to take 7 of them and make

a

Quoted 1 line

large volume. I can't seem to make a > 450 GB volume though, even

though

Quoted 1 line

lvdisplay is showing xxMB PE free.

http://tech.sistina.com/Pages/faq.php?action=view&ID=39

Is that your issue?

Signature · 2 lines
Austin Gonyou <[email protected]>
Coremetrics, Inc.