On Tue, 13 Oct 2009, Nils Goroll wrote:
I am trying to find out some definite answers on what needs to be done on an
STK 2540 to set the Ingnore Cache Sync Option. The best I could find is Bob's
"Sun StorageTek 2540 / ZFS Performance Summary" (Dated Feb 28, 2008, thank
you, Bob), in which he quotes a posting of Joel Miller:
I should update this paper since the performance is now radically
different and the StorageTek 2540 CAM configurables have changed.
Is this information still current for F/W 07.35.44.10 ?
I suspect that the settings don't work the same as before, but don't
know how to prove it.
Bonus question: Is there a way to determine the setting which is currently
active, if I don't know if the controller has been booted since the nvsram
potentially got modified?
From what I can tell, the controller does not forget these settings
due to a reboot or firmware update. However, new firmware may not
provide the same interpretation of the values.
Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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