It gets even worse -- a 6228 HBA can eat the entire available bandwidth of a PCI bus (per IBM's doc) so each card should be on a separate PCI bus with very little else on the bus. There are only 3 PCI buses in the I/O drawers used by most of the 6000s currently installed. And, like Remco said -- do the math.
Tom Kauffman NIBCO, Inc > -----Original Message----- > From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf > Of rh > Sent: Thursday, August 05, 2004 7:09 PM > To: [EMAIL PROTECTED] > Subject: FC 3590E1A per HBA > > Hi, > > I saw somewhere in the list that IBM recommends two > 3590 FC drives per HBA. Is this published somewhere or > just "word of mouth"? If there is a planning document > that discusses this I would be interested in the link. > I currently have 16 drives across four 6228 HBA's on > an AIX box. I've seen some discussions and math about > throughput etc., but there should be some rule of > thumb that can guide me to whether I have a > "reasonable' configuration or not. HBA's aren't cheap > so I'd hate to require 8 of them. > > Thanks, > Rod Hroblak > ADP > > > > __________________________________ > Do you Yahoo!? > Yahoo! Mail is new and improved - Check it out! > http://promotions.yahoo.com/new_mail CONFIDENTIALITY NOTICE: This email and any attachments are for the exclusive and confidential use of the intended recipient. If you are not the intended recipient, please do not read, distribute or take action in reliance upon this message. If you have received this in error, please notify us immediately by return email and promptly delete this message and its attachments from your computer system. We do not waive attorney-client or work product privilege by the transmission of this message.
