Automatic session recovery
Print Services Facility™ (PSF) can try to resume printing
when a session has been unexpectedly ended by a device. A message is sent
to the message queue when PSF is performing automatic session recovery.
These PSF configuration object parameters support automatic session recovery.
- AUTOSSNRCY
- Automatic session recovery specifies whether PSF tries to resume printing
when a session has been unexpectedly ended by a printer or other network device,
such as a router. AUTOSSNRCY(*YES) also lets you power your printer off and
on without ending PSF. If you plan to specify *YES, you should consider these
values for other parameters in the PSF configuration object:
- For a TCP/IP connection, use RETRY or ACKFRQ.
- For an APPC connection, use RETRY, RETRYDLY, or ACKFRQ.
Note:
When automatic session recovery takes place, pages might
be printed when printing resumes.
- ACKFRQ
- Acknowledgment frequency specifies the frequency, in pages, with which
PSF sends Intelligent Printer Data Stream™ (IPDS™) acknowledgment
requests to a printer. The acknowledgment request responses from the printer
that contains information as to the status of pages that is sent to the printer.
You might want to adjust this value if you are concerned about one of these
issues:
- Losing a connection to a printer while spooled files are being printed
- Duplicate pages being printed
More frequent acknowledgment request responses provide more information
about pages that have been printed. However, if you increase the frequency
of acknowledgment requests (by specifying a lower value), you can slow the
print process. You might need to experiment with different values in order
to find one that is suitable for your environment.
Related concepts
PSF configuration objects
Related tasks
Specify a PSF configuration object
Related reference
CL commands for PSF configuration objects