VERITAS Volume Manager 4.1 Administrator's Guide

Performance Monitoring and Tuning
Tuning VxVM
Chapter 12 415
volraid_rsrtransmax
The maximum number of transient reconstruct operations that can be
performed in parallel for RAID-5. A transient reconstruct operation is
one that occurs on a non-degraded RAID-5 volume that has not been
predicted. Limiting the number of these operations that can occur
simultaneously removes the possibility of flooding the system with many
reconstruct operations, and so reduces the risk of causing memory
starvation.
The default number of transient reconstruct operations that can be
performed in parallel is 1.
Increasing this size improves the initial performance on the system when
a failure first occurs and before a detach of a failing object is performed,
but can lead to memory starvation.