Free Space

[Indrajit Bhagat]

How do you calculate the free space available , to increase/extend a filesystem.?

[Steven E. Protter]

Shalom Indrajit,

LVM only once again.

vgdisplay /dev/vg00
# /dev/vg00 may need to be chaned.
# You will see a list of physical disks.

pvdisplay /dev/dsk/c1t1d0
# example use a real disk.

Now you know if you have a disk to extend to.

lvexted

Note that the root FS can not be extended, it must be contiguous.

SEP

[Wouter Jagers · Accepted solution]

When issuing the following command:

# vgdisplay vg00

These 2 lines are important:
PE Size (Mbytes) 16
Free PE 1200

In this example, 1200 Physical Extents (PE) are still available and every PE is 16MB in size. Hence, in this example there is 1200x16MB=19200MB still available in vg00.

When you are out of free PE's, listen to SEP :)

Cheers

[Arturo Galbiati]

Hi,
you can use the attached script.
HTH,
Art