PMDF System Manager's Guide

For proper PMDF operation it is important to have your system configured with enough swap space. How much swap space will be required will depend upon what components of PMDF you are using and how heavily they are used, as well as on what other non PMDF programs are running on the system. Regarding PMDF components, for instance, heavy POP or IMAP usage will increase the swap space needed. Note that a typical general system tuning recommendation, regardless of PMDF, is to have swap space at least three times the amount of main memory.

For PMDF, at a minimum you should have at least 320 megabytes of swap space configured on Solaris SPARC or at least 250 megabytes on Solaris x86. On a PMDF system with more than minimal usage, better values would be to start with at least 750 megabytes of swap space on Solaris SPARC or at least 500 megabytes on Solaris x86.

In particular, errors such as

pmdf: fatal: /pmdf/lib//libpmdf.so: can't set protections on segment: errno=11

from various PMDF components, or in the PMDF Job Controller log file an error such as

jbc_channels: chan_execute [1]: fork failed: Not enough space

are typical symptoms of a lack of swap space.

Note that shell commands such as swap -s and, at the time when PMDF processes are busy, ps -elf can be useful in seeing how much swap space you have available and used.