SCF Reference Manual for the Storage Subsystem (G06.27+, H06.04+)

Storage Subsystem Commands
SCF Reference Manual for the Storage Subsystem—529937-008
14-57
ALTER POOL Command
MODE { NOISY | QUIET }
specifies whether to generate additional EMS messages for debugging.
PRIMARYCPU number
is the processor in which the primary IOP starts. The process must be in the
STOPPED state or not running for you to alter this attribute.
PROGRAM [[$vol.]subvol.]fileid
is the object file name of the IOP. If not specified, PROGRAM is:
$SYSTEM.SYSTEM.OPP
If you specify the program file name location as $SYSTEM.SYSTEM, the operating
system first searches for the file there and on the current SYSnn subvolume.
STARTSTATE { STARTED| STOPPED }
specifies whether the IOP is available to other processes (STARTED) or
unavailable (STOPPED) when the system is loaded or reloaded. The default is
STARTED.
UPDATESTATS number
is the interval (in minutes) at which the storage pool process should collect
information about the physical volumes in the storage pool. number is either -1(no
statistics should collected) or in the range 0 through 1440. The default is 30.
If you specify a very large number, statistics are gathered infrequently. Depending
on how much virtual disk activity occurs, virtual disk processes could make
volume-selection decisions using out-of-date information.
Specifying a small value for number results in statistics being gathered frequently
but might affect system performance.
ALTER POOL Examples
See the procedure for Altering Storage Pool Attribute Values on page 9-9.
•
To change when a pool process provides disk-full information:
-> ALTER $POOL01, DISKINTERVAL 10, DISKTHRESHOLD 80
•
To change how often a pool process collects information about physical volumes in
the pool:
-> ALTER $POOL00, UPDATESTATS 3
NOISY Generate additional EMS messages for debugging.
QUIET Generate only essential EMS messages (default).