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termination

daemon@ATHENA.MIT.EDU (Russell Berry)
Thu Nov 7 08:57:11 1996

Date: 	Tue, 05 Nov 1996 17:36:52 -0500
From: Russell Berry <rberry@albany.net>
To: linux-scsi@vger.rutgers.edu

Hello all!

First, thanx to all who gave me answers to my question about terminating
the drives on my scsi bus.  For some reason I was thinking last night
that
I had two of my drives terminated and not the card. Duh!  So today I
took
the sucker apart and looked.  Only one drive is terminated, the last
one, 
and the NCR53C810 seems to have no facility for termination via jumpers,
so I assumed it to be auto-terminating.  The only jumpers it has is for
PCI ID, and scsi-id.  Strange..

anyway, it all worked fine like it was/is, I tried just for the heck of
it to terminate two drives, and stick the card in between somewhere.  It
wouldn't get through the bios stuff or even see the drives. Soooooooo...

I leavith it alone...and it works.  Do these numbers look okay???

 hdparm -t /dev/sda

/dev/sda:
 Timing buffered disk reads:  16 MB in  0.67 seconds =23.88 MB/sec

 hdparm -t /dev/sdb

/dev/sdb:
 Timing buffered disk reads:  16 MB in  0.64 seconds =25.00 MB/sec

 hdparm -t /dev/sdc

/dev/sdc:
 Timing buffered disk reads:  16 MB in  0.66 seconds =24.24 MB/sec


later...


---russ

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