* [linux-lvm] Stripes and PE's
@ 2004-06-12 0:07 Tyler
2004-06-12 7:13 ` David Greaves
2004-06-14 13:22 ` AJ Lewis
0 siblings, 2 replies; 4+ messages in thread
From: Tyler @ 2004-06-12 0:07 UTC (permalink / raw)
To: linux-lvm
I'm having problems creating a logical volume on a 4 disk SCSI volume group.
I want to use the entire space as 1 LV that is striped, but can't seem to do
it.
I get an error telling me I don't have enough Physical Extents, when I
clearly do.
livecd root # vgdisplay
--- Volume group ---
VG Name group
System ID
Format lvm2
Metadata Areas 4
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 255
Cur LV 0
Open LV 0
Max PV 255
Cur PV 4
Act PV 4
VG Size 13.91 GB
PE Size 4.00 MB
Total PE 3560
Alloc PE / Size 0 / 0
Free PE / Size 3560 / 13.91 GB
VG UUID DjxWid-oxqx-zol9-Lu8a-CO94-AsBn-c7k3le
livecd root # lvcreate -i4 -I16 -l3560 -nstorage group
Insufficient allocatable extents suitable for striping for logical volume
storage: 3560 required
livecd root # lvcreate -i4 -I16 -l3000 -nstorage group
Insufficient allocatable extents suitable for striping for logical volume
storage: 3000 required
Even if I try to use less space then it says I have, it still wont let me.
I've had this error before, but never found a solution. I also have not
found the solution on the mailing list archives either. I can create a
contiguous LV, but without striping. I'd like to have it striped if I
could.
What am I doing wrong?
Tyler
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-lvm] Stripes and PE's
2004-06-12 0:07 [linux-lvm] Stripes and PE's Tyler
@ 2004-06-12 7:13 ` David Greaves
2004-06-13 4:38 ` Tyler
2004-06-14 13:22 ` AJ Lewis
1 sibling, 1 reply; 4+ messages in thread
From: David Greaves @ 2004-06-12 7:13 UTC (permalink / raw)
To: LVM general discussion and development
I had a similar problem.
I fixed it by turning off contiguous
http://www.redhat.com/archives/linux-lvm/2004-April/msg00050.html
Can't say anyone was particularly helpful about enlightening me <shrug> :)
Maybe you could create a non-striped contiguous over a striped md array?
David
Tyler wrote:
>I'm having problems creating a logical volume on a 4 disk SCSI volume group.
>I want to use the entire space as 1 LV that is striped, but can't seem to do
>it.
>
>I get an error telling me I don't have enough Physical Extents, when I
>clearly do.
>
>livecd root # vgdisplay
> --- Volume group ---
> VG Name group
> System ID
> Format lvm2
> Metadata Areas 4
> Metadata Sequence No 1
> VG Access read/write
> VG Status resizable
> MAX LV 255
> Cur LV 0
> Open LV 0
> Max PV 255
> Cur PV 4
> Act PV 4
> VG Size 13.91 GB
> PE Size 4.00 MB
> Total PE 3560
> Alloc PE / Size 0 / 0
> Free PE / Size 3560 / 13.91 GB
> VG UUID DjxWid-oxqx-zol9-Lu8a-CO94-AsBn-c7k3le
>
>livecd root # lvcreate -i4 -I16 -l3560 -nstorage group
> Insufficient allocatable extents suitable for striping for logical volume
>storage: 3560 required
>livecd root # lvcreate -i4 -I16 -l3000 -nstorage group
> Insufficient allocatable extents suitable for striping for logical volume
>storage: 3000 required
>
>Even if I try to use less space then it says I have, it still wont let me.
>
>I've had this error before, but never found a solution. I also have not
>found the solution on the mailing list archives either. I can create a
>contiguous LV, but without striping. I'd like to have it striped if I
>could.
>
>What am I doing wrong?
>
>Tyler
>
>_______________________________________________
>linux-lvm mailing list
>linux-lvm@redhat.com
>https://www.redhat.com/mailman/listinfo/linux-lvm
>read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: [linux-lvm] Stripes and PE's
2004-06-12 7:13 ` David Greaves
@ 2004-06-13 4:38 ` Tyler
0 siblings, 0 replies; 4+ messages in thread
From: Tyler @ 2004-06-13 4:38 UTC (permalink / raw)
To: 'LVM general discussion and development'
Unfortunately, that didn't work.
cluster6 root # lvcreate -Cn -i4 -I16 -l3560 -nstorage group
Insufficient allocatable extents suitable for parallel use for logical
volume storage: 3560 required
cluster6 root # lvcreate -i4 -I16 -l3560 -nstorage group
Insufficient allocatable extents suitable for parallel use for logical
volume storage: 3560 required
Any other suggestions?
Tyler
-----Original Message-----
From: linux-lvm-bounces@redhat.com [mailto:linux-lvm-bounces@redhat.com] On
Behalf Of David Greaves
Sent: Saturday, June 12, 2004 1:13 AM
To: LVM general discussion and development
Subject: Re: [linux-lvm] Stripes and PE's
I had a similar problem.
I fixed it by turning off contiguous
http://www.redhat.com/archives/linux-lvm/2004-April/msg00050.html
Can't say anyone was particularly helpful about enlightening me <shrug> :)
Maybe you could create a non-striped contiguous over a striped md array?
David
Tyler wrote:
>I'm having problems creating a logical volume on a 4 disk SCSI volume
group.
>I want to use the entire space as 1 LV that is striped, but can't seem to
do
>it.
>
>I get an error telling me I don't have enough Physical Extents, when I
>clearly do.
>
>livecd root # vgdisplay
> --- Volume group ---
> VG Name group
> System ID
> Format lvm2
> Metadata Areas 4
> Metadata Sequence No 1
> VG Access read/write
> VG Status resizable
> MAX LV 255
> Cur LV 0
> Open LV 0
> Max PV 255
> Cur PV 4
> Act PV 4
> VG Size 13.91 GB
> PE Size 4.00 MB
> Total PE 3560
> Alloc PE / Size 0 / 0
> Free PE / Size 3560 / 13.91 GB
> VG UUID DjxWid-oxqx-zol9-Lu8a-CO94-AsBn-c7k3le
>
>livecd root # lvcreate -i4 -I16 -l3560 -nstorage group
> Insufficient allocatable extents suitable for striping for logical volume
>storage: 3560 required
>livecd root # lvcreate -i4 -I16 -l3000 -nstorage group
> Insufficient allocatable extents suitable for striping for logical volume
>storage: 3000 required
>
>Even if I try to use less space then it says I have, it still wont let me.
>
>I've had this error before, but never found a solution. I also have not
>found the solution on the mailing list archives either. I can create a
>contiguous LV, but without striping. I'd like to have it striped if I
>could.
>
>What am I doing wrong?
>
>Tyler
>
>_______________________________________________
>linux-lvm mailing list
>linux-lvm@redhat.com
>https://www.redhat.com/mailman/listinfo/linux-lvm
>read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
>
>
_______________________________________________
linux-lvm mailing list
linux-lvm@redhat.com
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-lvm] Stripes and PE's
2004-06-12 0:07 [linux-lvm] Stripes and PE's Tyler
2004-06-12 7:13 ` David Greaves
@ 2004-06-14 13:22 ` AJ Lewis
1 sibling, 0 replies; 4+ messages in thread
From: AJ Lewis @ 2004-06-14 13:22 UTC (permalink / raw)
To: LVM general discussion and development
[-- Attachment #1: Type: text/plain, Size: 2812 bytes --]
On Fri, Jun 11, 2004 at 06:07:07PM -0600, Tyler wrote:
> I'm having problems creating a logical volume on a 4 disk SCSI volume group.
> I want to use the entire space as 1 LV that is striped, but can't seem to do
> it.
>
> I get an error telling me I don't have enough Physical Extents, when I
> clearly do.
look at the output of 'pvs' - it will tell you the number of physical
extents free on each disk. Take the lowest number of physical extents in
the set of PVs in your VG and multiply it by 4, then use that number when
doing your striping. LVM requires each stripe to be on a separate PV
currently.
> livecd root # vgdisplay
> --- Volume group ---
> VG Name group
> System ID
> Format lvm2
> Metadata Areas 4
> Metadata Sequence No 1
> VG Access read/write
> VG Status resizable
> MAX LV 255
> Cur LV 0
> Open LV 0
> Max PV 255
> Cur PV 4
> Act PV 4
> VG Size 13.91 GB
> PE Size 4.00 MB
> Total PE 3560
> Alloc PE / Size 0 / 0
> Free PE / Size 3560 / 13.91 GB
> VG UUID DjxWid-oxqx-zol9-Lu8a-CO94-AsBn-c7k3le
>
> livecd root # lvcreate -i4 -I16 -l3560 -nstorage group
> Insufficient allocatable extents suitable for striping for logical volume
> storage: 3560 required
> livecd root # lvcreate -i4 -I16 -l3000 -nstorage group
> Insufficient allocatable extents suitable for striping for logical volume
> storage: 3000 required
>
> Even if I try to use less space then it says I have, it still wont let me.
>
> I've had this error before, but never found a solution. I also have not
> found the solution on the mailing list archives either. I can create a
> contiguous LV, but without striping. I'd like to have it striped if I
> could.
>
> What am I doing wrong?
>
> Tyler
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
--
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2004-06-12 7:13 ` David Greaves
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