Server instrumentation for different operating platforms

Server instrumentation differs on the various IBM Spectrum® Protect server operating systems.

The operating systems differ for server instrumentation in these respects:
  • On operating systems such as AIX® and Linux®, only one thread does I/O to any disk storage-pool volume (called DiskServerThread). This thread provides a disk volume-centric view and can be difficult to get complete operation disk statistics.
  • On Windows servers, the following processes occur:
    • Any thread can do I/O on a disk storage-pool volume (called SsAuxThread for backup)
      • These threads provide a process or session-oriented view
      • It can be more difficult to identify disk contention issues
    • Windows timing statistics have only about a 15-millisecond granularity