[linux-lvm] can i extend a volumen bigger 256 gigas ?thx

Jose Luis Domingo Lopez linux-lvm at 24x7linux.com
Mon May 5 15:57:03 UTC 2003

On Monday, 05 May 2003, at 21:39:04 +0200,
fnt wrote:

> It is possible to extend a volumen more than 256 gigas?

> it doesnt let me grow the space.
> this is muy info :
> root]# cat /proc/lvm/global
> VG:  gl  [2 PV, 1 LV/1 open]  PE Size: 4096 KB
>   Usage [KB/PE]: 294883328 /71993 total  113950720 /27820 used  180932608
Directly from vgcreate(8) (lvm2 tools, version 1.95.15-1 (Debian Sid)):

   To limit kernel memory usage,  there  is  a  limit  of  65536 physical
   extents  (PE) per logical volume, so the PE size determines the maximum
   logical volume size.  The default PE size of 4MB limits a single logi-
   cal  volume to 256GB (see the -s option to raise that limit). There is
   also (as of Linux 2.4) a kernel limitation of 2TB per block device.

As far as I remember, this limit is also there in LVM1.

Hope it helps.

Jose Luis Domingo Lopez
Linux Registered User #189436     Debian Linux Sid (Linux 2.5.68)

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