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10 Sun Enterprise 10000 DR Configuration Guide • May 2002
3. If you want to detach a board that hosts Sun StorEdge A3000 controllers, make
those controllers idle or take them offline manually using the rm6 or rdacutil
programs.
The Sun StorEdge A3000 (formerly known as the RSM Array 2000) has dual
controller paths with automatic load balancing and automatic failover
functionality.
4. Close all non-network devices by doing the following:
■ Close all instances of a device by killing any processes that directly open the
device or raw partition, or by directing the process to close an open device on
the board.
■ Run modunload(1M) to unload each detach-unsafe or loaded device driver.
Note – In situations where you cannot unload a device that has an unsafe driver,
you can blacklist the board that contains the unsafe device and then reboot the
domain. You can remove the board later. For details on blacklisting, refer to the
blacklist(1M) man page.
5. Processes bound to the processors of a board prevent that board from being
detached. You can use pbind(1M) to rebind them to other processors.
Configuration Changes During DR
Operations
This section describes
■ How you can control forcible conditions that affect system quiescence during a
DR detach operation in progress
■ Various configuration changes performed by DR during DR detach operations
Controlling Forcible Conditions that Affect
System Quiescence
If the Solaris operating environment cannot quiesce during a DR detach operation
involving a board with nonpageable memory, it displays the reason why it cannot
quiesce. For example,a suspend-unsafe device is open that cannot be quiesced by the
operating environment.