RESIDENT

onconfig.std value

0

range of values

-1 to 99
0 = off
1 = lock the resident segment only
n = lock the resident segment and the next n-1 virtual segments
-1 = lock all resident and virtual segments
99 = lock the resident segment and the next 98 virtual segments

Certain platforms have different values. For information, see your machine notes.

if not present

0

takes effect

When the database server is shut down and restarted

utilities

onmode -r (see Change Shared-Memory Residency)

refer to

The following topics in the IBM Informix Administrator's Guide for a discussion of residency:

• Resident portion of shared memory, in the shared-memory chapter
• Setting database server shared-memory configuration parameters, in the chapter on managing shared memory

The RESIDENT parameter specifies whether resident and virtual segments of shared memory remain resident in operating-system physical memory.

Some systems allow you to specify that the resident portion of shared memory must stay (be resident) in memory at all times. If your operating system supports forced residency, you can specify that resident and virtual segments of shared memory not be swapped to disk.