Swap Space Management in Solaris

The swap utility provides an administrative interface to the management of the system swap areas. A standard swap partition which is not under the volume manager control cannot be resized, but swap space can be added using swap files.

Create a swapfile of 512MB in /local:

mkfile 512M /local/swapfile01

Add the swap to system swap space:

swap -a /local/swapfile01
swap -a /dev/dsk/c0t0d0s1

Add /etc/vfstab entry to add the swap space to make sure it is recognized after reboot:

/local/swapfile01       -       -       swap    -       no      -
/dev/dsk/c0t0d0s1       -       -       swap    -       no      -

Delete a swap space:

swap -d /local/swapfile01
swap -d /dev/dsk/c0t0d0s1

The /etc/vfstab entry has to be removed after removing the swap space.

List swap space:

swap -l

List swap space statistics:

swap -s
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