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Date:      Wed, 1 Dec 1999 15:56:45 +0800 (WST)
From:      Paul Reece <paul@pulsat.com.au>
To:        freebsd-questions@freebsd.org
Cc:        freebsd-scsi@freebsd.org
Subject:   cam scsi and adaptec 7890/91
Message-ID:  <Pine.BSF.4.20.9912011548580.3094-100000@koala.pulsat.com.au>

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Hi.

Have just installed 3.3-STABLE onto a machine here with onboard Adaptec
7890/7891 Ultra2 Controller.

When booting however I get:

ahc0: <Adaptec aic7890/91 Ultra2 SCSI adapter> rev 0x00 int a irq 11 on
pci0.12.0
ahc0: aic7890/91 Wide Channel A, SCSI Id=7, 16/255 SCBs

then..

da0 at ahc0 bus 0 target 0 lun 0
da0: <QUANTUM ATLAS IV 9 WLS 0909> Fixed Direct Access SCSI-3 device 
da0: 11.626MB/s transfers (5.813MHz, offset 31, 16bit), Tagged Queueing
Enabled
da0: 8761MB (17942584 512 byte sectors: 255H 63S/T 1116C)

ie, 11.626MB/s @ 5.813Mhz, instead of what I'd expect (from a machine with
a 7895/7896 in it):

da0 at ahc0 bus 0 target 0 lun 0
da0: <QUANTUM ATLAS IV 9 SCA 0909> Fixed Direct Access SCSI-3 device 
da0: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing
Enable
d
da0: 8761MB (17942584 512 byte sectors: 255H 63S/T 1116C)


Anyone have any pointers as to why I'm getting only 11.6meg transfers
reported upon boot when the drives and the SCSI BUS is capable of
80??  The devices ARE LVD/Ultra2 drives..  (same in both machines, except
one set are SCA)


Any replies direct would be appreciated - else I'll likely miss them :)


Regards,
Paul.
--
paul reece - network administrator - pulsat communications limited
preece@pulsat.com.au - ph +61 8 9481 6911 - fax +61 8 9481 6751



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