Changing the write-cache mode

(Bootable-CD mode only.)

Use this action to change the write-cache mode setting of a logical drive to write through or write back.

  1. Select a logical drive Controller from the Main Tree.
  2. Select Change write-cache mode to write back/write through from the Actions menu. If you select write through, the ServeRAID Manager changes the mode. If you select write back, a window appears ....
  3. Click Yes.

The write-cache mode determines if the controller writes data to the hard disk drive before or after sending a confirmation to the operating system.

Note: If you configure a fault-tolerant pair of controllers, the controllers must be configured as write through. If you have the battery backup option, it is disabled when you create a fault-tolerant pair. The write-cache mode is changed automatically from write-back mode to write-through mode. For more information, refer to the "IBM Netfinity ServeRAID-3H, -3HB, and -3L Ultra2 SCSI Controllers Installation and User's Guide."

See Also

Understanding write-back and write-through modes