[linux-lvm] Antw.: LVM Alignement
Matecki, Lukas
Lukas.Matecki at lvr.de
Fri Jul 22 18:42:10 UTC 2011
Oh thx for the reply. I will check the offset with this command. If it is the default offset it would mean that a lvm only disk is aligned by default. Thx for help
Greetings
Lukas
Gesendet über ein mobiles Gerät
----- Reply message -----
Von: "Alexander Dalloz" <ad+lists at uni-x.org>
An: "LVM general discussion and development" <linux-lvm at redhat.com>
Betreff: [linux-lvm] LVM Alignement
Datum: Fr., Jul. 22, 2011 20:37
> Hey all,
>
> i have a question about Lun / Partition alignment.
> If I use LVM in a Linux guest OS on a VMFS Datastore i can align my
> Partitions with mbralign.
> But the tool failes if I will try to use it on a LVM only VDisk. For
> example the second Disk of this guest OS.
>
> Did I need to align the second disk or did LVM take care of alignment ? I
> just mean a single VDisk with a single LVM VG.
>
> Greetings
>
> Lukas Matecki
By default LVM uses an offset of 192k, see:
# vgs -o +pe_start
VG #PV #LV #SN Attr VSize VFree 1st PE
VolGroup00 1 1 0 wz--n- 8,78G 0 192,00K
Alexander
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