From: Howard Arnold (arnoldh@celerent.com)
Date: Wed May 04 2005 - 12:31:55 EDT
Thanks for everyone's quick replies. The replies confirmed that 4.0g does
not support multibus failover.
Original question:
I haven't work on a 4.0g system in awhile and then when I did they were
mostly scsi based so excuses me if this sounds like a dumb question.
Does 4.0g support multibus fail over?
I have a standalone ES40 with two KGPSA-CA's connected to two Compaq
Storagework 16 EL's connected to an dual controller HSG80. The HSG80 is set
up as transparent failover and not multibus.
I have one emx controller going to one switch and the other emx controller
going to the other switch just like I have set up before on 5.1b systems. I
started running a disk exerciser and then pulled emx0, but the disk
exerciser failed rather than failing over. Is this normal for 4.0g? Could it
be because I don't have my HSG80's set up in multibus failover?
I haven't installed any patches yet so if that will fix this I'll try it.
It looks like emx1 is a separate bus from emx0 so to me it looks like 4.0g
doesn't support failover, but I'm just trying to confirm.
Howard Arnold
Consultant Engineer
Email: arnoldh@celerent.com
Phone: (603)685-6060 ext. 206
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