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Conference ssag::ask_ssag

Title:Ask the Storage Architecture Group
Notice:Check out our web page at http://www-starch.shr.dec.com
Moderator:SSAG::TERZAN
Created:Wed Oct 15 1986
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6756
Total number of notes:25276

6451.0. "HSJ40, CI_ARB = SYNCH" by CTHU41::M_MCNAMARA (Mike McNamara 640-7317) Thu Mar 06 1997 11:44

Hello,

	The V.27 HSOF release notes for the HSJ40 indicate that there
	is a qualifier to the "SET THIS" CLI command to select the CI 
	arbitration method.
	These notes indicate that as of V2.5 the default is ASYNC however
	there is an optional SYNC parameter that is for future CI host adapters.

	The CIPCA adapter release notes (April 96) contain a recommendation
	to set all "HSJs to syncronous arbitration.
	It is not specific as to which HJSs.

	Questions; 

	Does the HSJ40 with HSOF V2.7 support SYNC CI arbitration?

	If so should it be enabled as the CIPCA notes indicate?

	Can it be enabled one controller at a time for a redundent controller
	pair, no downtime?
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