Date: Thu, 2 Apr 1998 12:06:26 -0600 (CST) From: "Andrew J. Doane" <adoane@eagle.ais.net> To: aic7xxx@FreeBSD.ORG Subject: Any ideas? Message-ID: <199804021806.MAA16344@eagle.ais.net>
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Any ideas? Heres the scoop.. the problem is getting drive A and B to
coexsist without hanging the scsi bus.
Drive A = Microp 4743SS (ultra wide)
Drive B = Microp 4743SS (ultra wide)
Drive C = Seagate ST15230WC (wide)
Drive D = Seagate ST15230WC (wide)
Host = 2940UW
The following works fine:
Host-->A-->B under win95
Host-->A-->C under linux
Host-->B-->C under linux
Host-->C-->D under linux
I can even have Host-->A-->B on the bus working fine as long as I don't
drive to use both drives at the same time.
When I use the md driver to create a raid set using the two disks the bus
hangs usally within a minute of starting the mkraid. Setting the bios
to 20mb/sec for the drives doesn't appear to help (actually at 40mb/sec
the aic7xxx driver still reports 20mb/sec.. do i have to force it to
40mb somehow?). The two drives seem to work fine together under win95.
I did a 500mb copy from A to B without a problem.
Anyone have any ideas and or suggestions?
/ajd/
--
_/_/ _/ _/_/_/_/ Andrew J. Doane
_/ _/ _/ _/ Director, Network Operations
_/_/_/_/ _/ _/_/_/_/ American Information Systems, Inc.
_/ _/ _/ _/ Email: adoane@ais.net, http://www.ais.net
_/ _/ _/ _/_/_/_/ (312) 255-8500 Voice, (312) 255-8501 Fax
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