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gateways_10_standby.fm
Standby Board HG 3500
Feature Description
90
A History field is provided for every board in the pool. The following
information can be entered here and read out with the AMO BPOOL:
–
Board (LTU, slot) from which the stations currently configured were
switched
–
Board (LTU, slot) to which the stations previously configured were
switched
–
Date and time at which the IP stations were switched to or from the board
–
Counter indicating how often the stations currently configured were
switched
This information is available separately for automatic switchover (following a
defect) and for manual switchover. The AMO BPOOL can be used to reset
the history data (but only for all data simultaneously).
The history only contains information on the last switchover performed. Only
the counters provide information on all switchover stages.
IMPORTANT: For automatic IP station switchover to work, the boards must be
in operation (DC status "Ready") at the time of the defect. The feature is not
implemented if a defect is discovered when starting up the board or the system;
in this case, an automatic restart is performed. This is necessary for system
stability reasons.
Exception: A detached LAN cable results in a successful start; the later detection
of the LAN cable failure activates the automatic switchover as long as a standby
board is available.
SINGLE
If SINGLE automatic switchover is configured, further defects do not trigger a
switchover to a standby board, even if there are standby boards available in the
pool. This setting allows stations to be switched back manually after the defective
board has been replaced, without having to specify their current location.
MULTI
If MULTI automatic switchover is configured, defects continue to trigger
switchovers until there are no more standby boards available in the pool. When
switching back manually, you must specify the boards from which and to which
the stations should be switched. In other words, you must know or find out the
source board and the target board.
HiPath 4000 V5, IP Solutions - HG 3500 & HG 3575, Service Documentation
A31003-H3150-S104-2-7620, 03/2009
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