5–75

SECONDS=nn

As soon as the POWEROFF command is entered, all disk units in the cabinet are set to write-through. When the time interval, as represented by nn seconds, has elapsed, an orderly rundown of all units is started. When all units in the cabinet are successfully rundown, cabinet power is turned off.

Table 5–4shows what action will be taken depending on the switch settings and the results of the attempted flush:

CAUTION: If the BATTERY_OFF switch is used with the

OVERRIDE_BAD_FLUSH switch, unwritten data could be lost. Do not power off the subsystem until the unwritten data has been recovered.

Table 5–4 Poweroff Switch Settings

Battery

Override Switch

Flush

Action

Switch

 

Results

 

 

 

 

 

BATTERY_ON

OVERRIDE_BAD_FLUSH

Success

Controller and units in the cabinet are

 

 

 

shutdown and the ECB is powering the

 

 

 

cache module.

 

 

 

 

BATTERY_ON

OVERRIDE_BAD_FLUSH

Failure

Controller and units in the cabinet are

 

 

 

shutdown and the ECB is powering the

 

 

 

cache module.

 

 

 

 

BATTERY_ON

NO_OVERRIDE_BAD_FLUSH

Success

Controller and units in the cabinet are

 

 

 

shutdown and the ECB is powering the

 

 

 

cache module.

 

 

 

 

BATTERY_ON

NO_OVERRIDE_BAD_FLUSH

Failure

Nothing is shutdown, the ECB is powering

 

 

 

the cache module, and the user is notified

 

 

 

of a bad flush.

 

 

 

 

Compaq HSZ80 Array Controller ACS Version 8.3 Configuration and CLI Reference Guide

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Compaq HSZ80 manual Poweroff Switch Settings, SECONDS=nn