II_NUM_SLAVES (UNIX)

System Administrator Guide > System Administrator Guide > A. Environment Variables and Logicals > II_NUM_SLAVES (UNIX)

Was this helpful?

II_NUM_SLAVES specifies the number of slave processes that a DBMS server creates to do disk operations. The default is two, but systems having applications with high I/O throughput requirements, many disks, or faster disk drives can increase the number of slave processes. The following example allows each new server that is started to have four slaves:

ingsetenv II_NUM_SLAVES 4

Stop and restart DBMS servers to reset the number of slaves. The maximum supported value is 30 and the minimum is 0. Setting this environment variable/logical to 0 degrades performance substantially.

Note: On UNIX implementations that use O/S threads, II_NUM_SLAVES is not set and there are no I/O slaves.

Last modified date: 11/28/2023