Add swap space temporarily in Solaris

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From the computer of: qmchenry (339 recipes)
Created: Oct 06, 2003

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Sometimes swap space is inadequate but no free disk slices are available. Until a permanent solution is available, a file can be constructed and added to the swap space.

To make a 250MB addition to swap space using the /var filesystem, run as root:

The mkfile command makes a file of a specified size. The swap -a command adds the file to the swap space. If you have a free slice, such as /dev/dsk/c0t0d0s5, you can add that to the swap space temporarily with the following command:

These changes are temporary because they will not persist after the system reboots. To make the preceeding two example swap space additions persist after a reboot, place the following lines in the /etc/vfstab file (be very careful making changes to this file):