Measure Reference Manual

Example
To specify a default schema for expanding partially qualified ANSI SQL names:
+ SQLSCHEMA ’SCHEMA_34’
START MEASSUBSYS
The START MEASSUBSYS command starts the Measure subsystem.
Syntax
START [ MEASSUBSYS ] [ , cpu ]
MEASSUBSYS
is optional if you specified MEASSUBSYS as the command object by using the ASSUME
command.
cpu
is the number of a CPU on your system. Specify cpu when the Measure subsystem is already
running and you need to restart MEASCTL in a specific CPU.
Under normal conditions, you should not have to use the cpu parameter. If a CPU goes down
and then is restarted, MEASMON automatically starts a new MEASCTL process in that CPU.
However, if an attempt to start a MEASCTL using MEASMON fails, you can start MEASCTL
manually by issuing START MEASSUBSYS with the cpu parameter.
The cpu parameter is valid only when the Measure subsystem is running.
Related Command
PageFunctionCommand
130Stops the Measure subsystemSTOP MEASSUBSYS
CAUTION: Do not stop the MEASCTL swap volume while Measure is running. Doing so causes
system failure. For more information, see Usage Notes for All PVUs and RVUs.
Usage Notes for All PVUs and RVUs
• The START MEASSUBSYS command can be executed only by a super-group user—that is, a
user who has user ID (255,n).
• To avoid having the MEASCTL swap volume brought down inadvertently, use only $SYSTEM
or a mirrored volume as the swap volume. If you start MEASSUBSYS by using a swap volume
other than $SYSTEM, MEASCOM issues a warning message. If possible, stop MEASSUBSYS
and then restart it:
> MEASCOM/SWAP $SYSTEM/ START MEASSUBSYS
• If large measurements take excessively long to start, add these DEFINE statements before the
START MEASSUBSYS command in your measurement application:
ADD DEFINE =_MEASCTL_SKEW_COPYTIME, FILE A
ADD DEFINE =_LOCK_THE_CID_TABLE, FILE A
NOTE: The second ADD DEFINE statement applies to Measure G08 and earlier PVUs.
The FILE A addendum is required for syntax but is not used by TACL.
120 MEASCOM Commands