3.3.4 Operands related to full recovery processing

10) pd_max_recover_process = concurrently-executable-full-recovery-processes-count
[Figure]<unsigned integer>((1-10))
Specifies the number of processes to be recovered during full recovery processing. For a HiRDB/Parallel Server, this operand specifies the number of processes to be recovered per server (dictionary server or back-end server).
Condition
You need to use the raw I/O facility.
Specification guidelines
  • There are three or more logical volumes for which an RDAREA is defined (per server): 3
  • There are fewer than three logical volumes for which an RDAREA is defined (per server): Number of logical volumes
  • Increasing the value of this operand increases the input/output concurrency during full recovery processing, and thus can shorten the recovery time. However, because a number of processes equaling value-of-this-operand[Figure] server-count are started, determine a value by taking the aforementioned specification value guideline and HiRDB resources into consideration.