General Preparations

1. Look for the latest service information on the web at http://sunsolve2.Sun.COM/Enterprise-dr

   The web site is updated periodically. If you do not have direct access to this web site, ask your Sun service provider for assistance.

2. Determine that the board is compatible with DR.

   Some drivers do not yet support DR operations. A driver must be suspendable. The quiesce-test option tests for suspendable drivers:

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   # cfgadm -x quiesce-test sysctrl#:slot#
   

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3. Be sure that the board to be replaced is inactive.

   DR does not automatically stop activity on system boards.

   For example, before replacing an I/O board that controls a tape drive, wait for any read/write operations to finish.