Команда swap :

Adding a New Swap Area

By Fabian C. Toller

Presented here is a quick way to resolve the problem of running out of swap space, which can occur, for example, during database operations. This method allows for the temporary expansion or "hot add" to your swap area; the changes do not require a reboot of the system.

There are three steps to add a new swap area:

1. Log in as root on the system.
2. Make the file in swap format:

# mkfile -v 1g <filename>

Note: This example creates a 1-Gbyte swap file size.
3. Add the new swap file to the swap area:

# swap -a <filename>

Important note: When you install the OS, you designate one area for swap that is accessed as a raw device. In this example, you can expand the swap area using a file system, which is slower than raw access.

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