SCSI to DECSystem 5400

[Richard Wood]

Ojala at cs.hut.fi (Petri Ojala) writes:
|> 
|> DEC has SCSI adapter KZQSA for Q-bus available for DAT- and CDROM-devices.
|> Has anyone tried using SCSI disks on this particular SCSI adapter ?
|> (The generic kernel configuration file seems to say that sii0 supports
|> disks)  The environment is DECSystem 5400 running Ultrix 4.1.
|> 
|> What other alternatives does there exist to get SCSI support for
|> DECSystem 5400 ?  Third-party suppliers ?  How is the device driver
|> support ?

The best solution (although possibly impracticle due to budget
constraints) would be to upgrade to a DECsystem 5500.  There are
substantial gains:

	- CPU performance approximately doubles, to 21.5 SPECmarks
	  (from somewhere around 11 or so)

	- "PrestoServe" synchronous file system accelerator
	  *dramatically* speeds up write access to any synchronous
	  mounted file system, notably including NFS server disks.

	- A single SCSI channel is bundled in, along with the 5400's
	  DSSI and Q-bus based storage methods.

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Richard Wood     Corporate Worksystems Team      Digital Equipment Corp.
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