Gateway 840 VT-100 - Manual (Page 183)

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Chapter 9: Event Logs
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Controller events
Following is a brief description of events that relate to the controller and
configuration.
Controller Event Messages Description Cause Action
Array xx Cache Disabled
[Reasons]
The controller has disabled
the writeback cache for the
indicated reasons, as
follows:
In Preparation For
Shutdown:
The controller has received a
command to disable the
writeback cache in
preparation for shutdown.
Battery - The controller has
disabled the cache because
the battery is either not
present or fully charged.
Critical - The controller has
disabled the cache because
the array has become
critical.
UPS - The controller has
disabled the cache because
a configured UPS has
indicated power has been
removed or communications
has been lost with the UPS.
Disabling of
writeback cache
for the indicated
reasons:
■ A “prepare for
shutdown”
command has
been received by
the controller.
■ The battery is
not charged or
present.
■ The array has
become critical.
■ The UPS has
failed.
■ No action
necessary.
■ Charge the
backup battery
or re-install the
battery.
■ Resolve the
array issue and
rebuild the array.
■ Replace the
failed UPS.
Array xx Cache
Re-Enabled
The controller has
re-enabled the writeback
cache. Re-enabling of
writeback cache. No action
necessary.
Battery Failure This indicates that the
onboard cache backup
battery (if present) has
failed. Battery failure. Replace battery in
the controller.
Battery OK This indicates that the
onboard cache backup
battery (if present) is fully
charged. Battery charging
complete. No action
necessary.