[linux-lvm] Stripes and PE's
Tyler
tyler at tylercentral.com
Sat Jun 12 00:07:07 UTC 2004
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
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