z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

ipcs
Examples
–t
v Time of the last control operation that changed the access permissions
for all facilities
v Time of the last msgsnd() and msgrcv() on message queues
v Time of the last shmat and shmdt on shared memory
v Time of the last semop on semaphore sets
–w Writes message queue wait status and semaphore adjustment status in
these fields:
AJNUM KEY RCVPID T
AJPID MSGQPID RCVTYP WTRNM
AJVAL MSGQTYP SNDLEN WTROP
GROUP OWNER SNDPID WTRPID
This option ignores all other print options except –x and –y.
–x Writes extended status in these fields:
ATADDR KEY SEGSZ T
ATPID OWNER SEGSZPG TERMA
CNADJ PGSZ SNCNT
GROUP QCBYTES SNDWAIT
INFO RCVWAIT SZCNT
This option will be ignored for __map memory option [–S]. This option
ignores all other print options except the –y option.
–y Writes summary and system limit status in these fields:
CIDSA ENOMEM MAXSEG SPAGES
CKEY GETEX MNIDS TPAGES
CPAGES HWIDS MNOPS
CPRIV QMNUM MNSEMS
CSBYTES MAXQB SEGPR
This option ignores all other print options. This option is a summary and
system limit status for message queues, semaphores and shared memory.
It will not include the __map memory segments [–S] summary and system
limit status.
–M Writes multilevel security label associate with the resources except __map
memory facility. See z/OS Planning for Multilevel Security and the Common
Criteria for more information on multilevel security.
–B Writes extended information about __map memory segments in these fields:
BLKSIZE BLKSINUSE BLKSINMAP BLKSMAPPED
This option only applies to __map memory segments [–S].
Following is a sample output from entering ipcs without flags:
IPC status as of Wed Apr 6 14:56:22 EDT 1994
Message Queues:
T ID KEY MODE OWNER GROUP
q 1234567890 0x4107001c -Rrw-rw---- root printq
Shared Memory:
T ID KEY MODE OWNER GROUP
m 0 0x0d07021e --rw------- root system
326 z/OS V1R9.0 UNIX System Services Command Reference