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If one controller fails in a dual array controller configuration, you might want to run a single controller for an extended period of time so that the array does not display as degraded in the console. You can check the event log for the failed controller's serial
number, or check the console and make a note of the primary controller's
serial number.
You must use the firmware application to disable redundancy on
the controller. Refer to the Sun StorEdge 3000 Family RAID Firmware
User's Guide for your array for information about accessing
the firmware, and then from the Main Menu, choose view and edit Peripheral
devices > Set Peripheral Device Entry > Select Redundancy Controller - Primary.
The very last line in the file contains the serial numbers of both
controllers. Remove the failed controller's serial number from this
line. See Changing Controller Parameters - Cache Tab for information on disabling Write Back Cache.
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