Spooler Utilities Reference Manual

Migration Considerations for Pre-D41 Spooler
Versions
Spooler Utilities Reference Manual—522295-003
H-7
More Collector Openers for Each Collector
When all jobs in an older-version collector file have been deleted or moved, the file is
no longer needed by the spooler. Older-version collector files used in this way are not
altered in any way by the D41 spooler. JOB DELETE and MOVE operations are
processed by deleting or altering the job information retained by the supervisor. Once a
JOB DELETE command has been performed on one of these jobs, it can no longer be
accessed, even though it has physically been retained in the old file.
More Collector Openers for Each Collector
D41, D46, and D48 collectors support 1024 concurrent openers. This support may
allow the use of fewer collectors in some environments. Performance of a collector is
primarily limited by disk access capacity.
Warmstart From Older-Version Spooler Files
Warm start from older-version spooler control files (file codes 124 through 128) is
supported. The warm start operation is identical to that provided by previous spoolers
except that access to existing jobs is provided by retaining access to the existing older-
format collector files where they reside. These existing jobs are not moved or
converted to the new collection file format during the warm start operation; instead, you
must establish your own policies and procedures for the disposition of these jobs.
In some environments, existing jobs may be transient and will be deleted during the
normal course of operation. In these cases, the command to select jobs residing in a
specific data file can be used to identify when an older collector file can be removed
from the system. In other cases, you may elect to move jobs immediately after warm
start to free disk resources and to take advantage of new collector file settings.
Changes to Spoolcom Commands
This subsection describes changes to Spoolcom commands.
ERRLOG Subcommand
The ERRLOG subcommand, which was available to set the destination process or file
for supervisor Event Message Service (EMS) messages, has been removed from the
SPOOLER command. This subcommand in older versions of Spoolcom will also not
function with the D41 spooler.
The destination process name for EMS messages from all spooler components is now
established with a DEFINE provided by the process that runs SPOOL. The define is
established for a particular EMS collector process with the following command:
ADD DEFINE =_EMS_COLLECTOR, FILE $process-name
If no define exists, the EMS messages will be directed to $0.