AIX FS Commands

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Lists all filesystems in the /etc/filesystems entry:

# lsfs

List all filesystems with detailed info:

# lsfs -q

To list all filesystems (default):

# lsfs -a

Specify the output in list format:

# lsfs -l

Specify the output in column format:

# lsfs -c

Lists all jfs2 filesystems:

# lsfs -v jfs2

Change size of FS /blah to 49152 x 512 bytes blocks (24 MB):

# chfs -a size=49152 /blah

Add 49152 x 512 byte blocks to FS /blah:

# chfs -a size=+49152 /blah

Change the mount point from /blah to /blah-bkp:

# chfs -m /blah /blah-bkp

To auto mount the filesystem blah:

# chfs -A /blah

Remove account attribute of /blah. ( from /etc/filesystems):

# chfs -d account /blah

This will mount the 2nd copy of mirrored filesystem /www to /backup in read-only mode:

# chfs -a splitcopy=/backup -a copy=2 /www

Creates FS /blah of type jfs2 in VG testvg of blocksize 128930:

# crfs -v jfs2 -g leetvg -a size=128930 -m /blah

Create FS /blah of type jfs on device /dev/lv_blah:

# crfs -v jfs2 -d /dev/lv_blah -m /blah

Enable Cio on a filesystem:

# chfs -a options=rw,cio /blah

Deletes FS /blah and associated LV:

# rmfs /blah

Deletes FS /blah its mount point and associated LV:

# rmfs -r /blah

To defragment the file system /blah:

# defragfs /blah

Display the current defrag status of the file system:

# defragfs -q /blah

To fsck the filesystem associated to /dev/lv00 assuming response "yes":

# fsck -y n /dev/lv007

To restore superblock from backup superblock:

# fsck -p /dev/lv007

Thou shalt not steal!

If you want to use this information on your own website, please remember: by doing copy/paste entirely it is always stealing and you should be ashamed of yourself! Have at least the decency to create your own text and comments and run the commands on your own servers and provide your output, not what I did!

Or at least link back to this website.

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