Overview

Some customers may benefit by moving files that NMIS reads/writes to very often to a RAM Disk.  We have seen this improve performance on pollers that have shared storage and 2,000+ nodes provisioned.  The concept is that NMIS will be able to read/write to RAM faster than the shared storage.  Most of these files that NMIS touches very often are found in the nmis8/var directory.

Procedure

Step #1 - Determine Space Required

There are two questions that quickly come to mind:

• How big should the RAM disk be?
• How much RAM is available?

Check how much space nmis8/var is currently using; minus the nmis8/var/events directory.  We will keep the nmis8/var/events directory on a hard drive because it contains stateful event history; we don't want to loose these if the server is rebooted.