HP-UX HB v13.00 Ch-07 - Kernel Configuration

HP-UX Handbook – Rev 13.00 Page 28 (of 33)
Chapter 07 Kernel Configuration
October 29, 2013
voliomem_chunk_size 65536 Default
voliomem_maxpool_sz 134217728 Default
voliot_errbuf_dflt 16384 Default
voliot_iobuf_default 8192 Default
voliot_iobuf_limit 131072 Default
voliot_iobuf_max 65536 Default
voliot_max_open 32 Default
volpagemod_max_memsz 65536 Default Immed
volraid_rsrtransmax 1 Default
vps_ceiling 16 Default Immed
vps_chatr_ceiling 1048576 Default Immed
vps_pagesize 16 Default Immed
vx_dexh_sz 524287 Default Immed
vx_era_nthreads 5 Default
vx_maxlink 32767 Default
vx_ninode 0 Default Immed
vxfs_bc_bufhwm 0 Default Immed
vxfs_ifree_timelag 0 Default Immed
vxtask_max_monitors 32 Default
And the constraints of each parameter can be obtained by kctune –v. For example:
# kctune -v nproc
Tunable nproc
Description Maximum number of processes on the system
Module pm_proc
Current Value 4200 [Default]
Value at Next Boot 4200 [Default]
Value at Last Boot 4200
Default Value 4200
Constraints nproc >= 100
nproc <= 262144
nproc >= semmnu + 4
nproc >= maxuprc + 5
nproc <= nkthread - 100
Can Change Immediately or at Next Boot
Refer to the man page of each parameter for further explanation. In addition, if a parameter is
defined below the Failsafe value, then at the boot time, that parameter will be set automatically
to the Failsafe value. For example:
NAME
nproc - limits the number of processes allowed to exist simultaneously
VALUES
Failsafe
4200
Default
4200