AIX System Parameters
On AIX systems, you never need to rebuild a kernel because
system parameters may be changed on a running system. The current values
of AIX system parameters may be displayed with the lsattr
command:
#lsattr -EHl sys0
Final option letter is a lowercase L. attribute value description user_settable keylock normal State of system keylock at boot time False maxbuf 20 Maximum pages in block I/O BUFFER CACHE True maxmbuf 2048 Maximum KB real memory allowed for MBUFSTrue maxuproc 400 Maximum # PROCESSES allowed per user True autorestart false Automatically REBOOT after a crash True iostat false Continuously maintain DISK I/O history True realmem 65536 Amount of usable physical memory (KB) False conslogin enable System Console Login False fwversion IBM,SPH01184 Firmware version,revision levels False maxpout 0 HIGH water mark pending write I/Os/file True minpout 0 LOW water mark pending write I/Os/file True fullcore false Enable full CORE dump True pre430core false Use pre-430 style CORE dump True ncargs 6 ARG/ENV list size in 4KB blocks True rtasversion 1 Open Firmware RTAS version False modelname IBM,7044-270 Machine name False systemid IBM,011000189 Hardware system identifier False boottype disk N/A False SW_dist_intr false Enable SW distribution of interrupts True cpuguard disable CPU Guard True frequency 93750000 System Bus Frequency False
The list includes parameters that can be modified and ones that can’t. Being able to see, for example, the amount of physical ...
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