CA Dynam for VSE User Guide

Controlling Disk Pools
For example, assume the following:
"virtual" VOLSER = POOL01
POOL volume serial numbers, in order:
(1) SYSWK1
(2) SYSWK2
The JCL:
// DLBL DTF,'DSN'
// EXTENT SYS008,POOL01,1,0,1,100
In the above example, CA Dynam/D will perform its pool management function
because relative track 1 (the trigger value) is specified and the serial number
POOL01 is defined in the disk pool table. CA Dynam/D then tries to allocate
100 tracks on disk volume SYSWK1, and, if there is insufficient space,
SYSWK2 will be used.
Defining Disk Pools for AVR (COMAVR)
The COMAVR option record is used to specify the DASD devices available to
the CA Dynam system. It can be used to control access to devices by partition,
class, and by CPU, as well as globally for the entire system.
If the COMAVR option record is not defined, all DASD devices attached to the
system are assumed to be controlled by CA Dynam.
If specified, only the indicated devices are processed. Any DASD devices which
are attached to the system but not specified in the COMAVR option record are
ignored by the system, and are not processed while searching for a mounted
DASD volume.
For more information about using the COMAVR option record, see the
Programming Guide.
Attention Routine (AR) Commands
Disk Status and Control Commands
These commands can be issued from the operator console to allow temporary
bypass of DASD processing and to display the status of a volume.
DD OFFline volser
DD ONLine volser
DD QUIesce volser
Disable a DASD volume for input and output.
Return a DASD volume to full processing.
Make a DASD volume ineligible for controlled output.
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