Silicon Graphics TP9100, Installation Instructions And User Manual

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Miscellaneous Functions
007-4382-002 127
Flush Controller(s) Write Cache to Disk
When the Flush Controller(s) Write Cache to Disk menu selection is made, the screen
shown in Figure 3-92 appears.
Figure 3-92 Cache Flush Warning
Click YES to force a cache flush. You would ordinarily perform this after all LUNs are
unmounted, and before a power down. If you were to do a cache flush on mounted file
systems that are servicing write requests, there would be a small risk that this request
would never complete. However, it would be pointless to flush the cache in this situation,
as the cache would instantly be dirty after the controller receives the next write
command. If the cache flush is successful, the window shown in Figure 3-92 appears.
Figure 3-93 Cache Flush Successful