[CentOS] is it safe to resize root, on an LVM system, online?

Sun Jul 11 18:27:42 UTC 2010
Rudi Ahlers <Rudi at SoftDux.com>

Hi,

One of our servers has a too small root partition on LVM and needs to
be resized. Can / be safely increased online, without a reboot?

[root at zaxen02 ~]# lvscan
  ACTIVE            '/dev/LVM01/root' [4.00 GB] inherit
  ACTIVE            '/dev/LVM01/home' [20.00 GB] inherit
  ACTIVE            '/dev/LVM01/var' [4.00 GB] inherit
  ACTIVE            '/dev/LVM01/swap' [4.00 GB] inherit
  ACTIVE            '/dev/LVM01/log' [1.00 GB] inherit
  ACTIVE            '/dev/LVM01/webmin' [2.00 GB] inherit
  ACTIVE            '/dev/LVM01/xenstored' [2.00 GB] inherit
  ACTIVE            '/dev/LVM01/xensave' [2.00 GB] inherit
  ACTIVE            '/dev/LVM01/opennation-net_img' [10.00 GB] inherit
  ACTIVE            '/dev/LVM01/opennation-net_swap' [1.00 GB] inherit
  ACTIVE            '/dev/LVM01/pluto_img' [100.00 GB] inherit
  ACTIVE            '/dev/LVM01/pluto_swap' [1.00 GB] inherit
  ACTIVE            '/dev/LVM01/tmp' [5.00 GB] inherit
[root at zaxen02 ~]# pvscan
  PV /dev/md1   VG LVM01   lvm2 [232.69 GB / 76.69 GB free]
  Total: 1 [232.69 GB] / in use: 1 [232.69 GB] / in no VG: 0 [0   ]
[root at zaxen02 ~]#


-- 
Kind Regards
Rudi Ahlers
SoftDux

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