Re: [linux-lvm] lvdisplay disagrees with df for resized LV

[Les Hazelton <seawolf@attglobal.net>]

Andy,

The size of the LV and the size of the filesystem are two different
things.  I have always found that after increasing the size of the LV I
still needed to resize the filesystem. Depending on what filesystem you
are using, look at /sbin/resize_reiserfs or /usr/sbin/ext2resize.  That
should provide the result you are looking for.

Andy Cowling wrote:
> 
> I'm just starting out using LVM under SuSE 7.0. I created a logical
> volume which was initially 30Gb but I then resized it to 90Gb (using
> lvresize) spanning 3 physical volumes each of 30Gb.
> 
> Now, lvdisplay/vgdisplay shows the LV/VG size as 90Gb, but df still
> lists the file system as 30Gb.
> 
> How can I get df to recognise the addtional space ?
> 
> Thanks in advance
> --
> Andy Cowling
> Red Eye International
> http://www.redeye.com/
> 
> root@lynx:/opt/oracle > df -h /lv01
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/vg01/lv01         30G   17G   13G  58% /lv01
> 
> root@lynx:/opt/oracle > lvdisplay  /dev/vg01/lv01
> --- Logical volume ---
> LV Name               /dev/vg01/lv01
> VG Name               vg01
> LV Write Access       read/write
> LV Status             available
> LV #                  1
> # open                1
> LV Size               90 GB
> Current LE            23040
> Allocated LE          23040
> Allocation            next free
> Read ahead sectors    128
> Block device          58:0
> 
> root@lynx:/opt/oracle > vgdisplay  vg01
> --- Volume group ---
> VG Name               vg01
> VG Access             read/write
> VG Status             available/resizable
> VG #                  0
> MAX LV                256
> Cur LV                1
> Open LV               1
> MAX LV Size           255.99 GB
> Max PV                256
> Cur PV                3
> Act PV                3
> VG Size               90.01 GB
> PE Size               4 MB
> Total PE              23043
> Alloc PE / Size       23040 / 90 GB
> Free  PE / Size       3 / 12 MB
> 
> root@lynx:/opt/oracle > pvdisplay /dev/sdc5
> --- Physical volume ---
> PV Name               /dev/sdc5
> VG Name               vg01
> PV Size               30.01 GB / NOT usable 1.85 MB [LVM: 260 KB]
> PV#                   3
> PV Status             available
> Allocatable           yes
> Cur LV                1
> PE Size (KByte)       4096
> Total PE              7681
> Free PE               3
> Allocated PE          7678
> 
> root@lynx:/opt/oracle > pvdisplay /dev/sdd5
> --- Physical volume ---
> PV Name               /dev/sdd5
> VG Name               vg01
> PV Size               30.01 GB / NOT usable 1.85 MB [LVM: 260 KB]
> PV#                   2
> PV Status             available
> Allocatable           yes (but full)
> Cur LV                1
> PE Size (KByte)       4096
> Total PE              7681
> Free PE               0
> Allocated PE          7681
> 
> root@lynx:/opt/oracle > pvdisplay /dev/sde5
> --- Physical volume ---
> PV Name               /dev/sde5
> VG Name               vg01
> PV Size               30.01 GB / NOT usable 1.85 MB [LVM: 260 KB]
> PV#                   1
> PV Status             available
> Allocatable           yes (but full)
> Cur LV                1
> PE Size (KByte)       4096
> Total PE              7681
> Free PE               0
> Allocated PE          7681

-- 

Good Journey, longevity and prosperity to all

Les Hazelton