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    Mon, 13 Jun 2011


    /Admin/LVM: Create a new logical volume / partition[1]:

    Create the logical volume:

    lvcreate --size 200G volgroupname -n scratch

    Format the volume:

    mkfs.ext3 /dev/volgroupname/scratch

    Create an entry in /etc/fstab to mount the volume:

    /dev/volgroupname/scratch /scratch ext3 defaults 0 2

    Then create the /scratch directory and mount it.

    [1] https://wiki.archlinux.org/index.php/LVM

    posted at: 09:19 | path: /Admin/LVM | permanent link to this entry


    /Admin/LVM: LVM Information:

    "pvs" and "pvdisplay" lists all physical volumes,
    "vgs" and "vgdisplay" lists all volume groups,
    "lvs" and "lvdisplay" lists all volumes.

    "vgs" displays the amount of free space that has not yet been assigned to a volume.

    posted at: 08:24 | path: /Admin/LVM | permanent link to this entry


    /Admin/LVM: Reduce an LVM Volume[1]

    The Volume must be unmounted before it can be rduced:

    umount /home

    Check the volume for errors:

    fsck -f /dev/mapper/home/

    Shrink the file system to 200G:

    resize2fs /dev/mapper/home 200G

    Shrink the LVM volume group to the same size:

    lvresize -L 200G /dev/mapper/home

    [1] http://tcpdump.com/kb/os/linux/lvm-resizing-guide/shrink.html

    posted at: 02:15 | path: /Admin/LVM | permanent link to this entry