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  1. Notes/

Using the lvextend command

128 words

To extend a regular ext3 filesystem on-line you’d use lvextend & resize2fs

[root@foohost]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg00-root
                      9.7G  2.5G  6.8G  27% /
/dev/mapper/vg00-var  9.7G  1.6G  7.7G  18% /var
/dev/mapper/vg00-foohost
                       49G   44G  2.3G  96% /var/foohost
...

[root@foohost]# lvextend -l 2400 /dev/mapper/vg00-foohost
  Extending logical volume foohost to 75.00 GB
  Logical volume foohost successfully resized

lvextend -l +100%FREE /dev/mapper/vg00-barhost resize2fs /dev/mapper/vg00-barhost

[root@foohost]# resize2fs /dev/mapper/vg00-foohost
resize2fs 1.39 (29-May-2006)
Filesystem at /dev/mapper/vg00-foohost is mounted on
/var/foohost; on-line resizing required
Performing an on-line resize of /dev/mapper/vg00-foohost to
19660800 (4k) blocks.
The filesystem on /dev/mapper/vg00-foohost is now 19660800 blocks
long.

[root@foohost]# df -h -l
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg00-root
                      9.7G  2.5G  6.8G  27% /
/dev/mapper/vg00-var  9.7G  1.6G  7.7G  18% /var
/dev/mapper/vg00-foohost
                       73G   44G   26G  64% /var/foohost