change system-parameters maintenance
Issue 5 October 2002
189
555-233-119
Daily
Maintenance
This display-only field lists the standard test series run by maintenance
software during daily maintenance.
Save
Translation
Indicates the days that translation data in memory automatically saves
to the Mass Storage System disk and/or tape devices during scheduled
maintenance. The operation saves to disk, then completes a backup to
tape. Translation data saves to both SPEs, if systems have duplicated
SPEs. (daily, days of the week, or no - prevents automatic saves)
Control
Channel
Interchange
Each port network has a pair of TDM busses (A and B). Each has a set
of time slots dedicated to the control channel. One bus at a time carries
the control channel in each PN. (daily, days of the week, or n, prevents
interchanges) Default is n.
System Clocks
Interchange
For High and Critical Reliability systems, this option initiates a
Tone-Clock interchange in each port network possessing duplicated
Tone-Clock circuit packs. Each port network interchanges into the
standby Tone-Clock for 20 seconds and then back to the
originally-active Tone-Clock. This field indicates the days that
interchanges occur. (daily, days of the week, or n, prevents
interchanges) Default is n.
The system performs a Tone-Clock interchange, activating the stand by
Tone-Clock. After the newly-active Tone-Clock circuit pack is tested, it
provides system clocks for its native port network. Then the system
interchanges to the originally active Tone-Clock circuit pack.
SPE
Interchange
This field indicates the days SPE interchanges execute during
scheduled maintenance, for duplicated SPE systems. (daily, days of the
week, or n, prevents scheduled interchanges) Default is n.
EXP-LINK
Interchange
This field indicates if expansion links between port-networks
interchange as part of scheduled maintenance. The value daily means
that EXP-LINK interchanges automatically occur everyday. The value
no means that EXP-LINK interchanges do not automatically occur as
part of scheduled maintenance. Values represented by the days of the
week mean that EXP-LINK interchanges automatically occur
automatically on specified days. Since EXP-LINK interchanges apply to
duplicated systems, simplex systems do not display this field. Default is
n.