🚀 go-pugleaf

scoggin@snow-white.ee.udel.edu (John K Scoggin) writes:

>We are looking for a high-speed alternative to Exabyte 8mm drives for backup.
>Ideally, a tape system with stacker having a capacity of 5GB/tape (minimum)
>and a higher transfer rate (1-2 MB/minute would be nice).  BTW, we are using
>ReelBackup as our backup system, currently. SCSI or SCSI-2 interface is a 
>must.  The hardware environment is Sun SPARC.

>Thanks for any pointers...

>	- John

>-------------------------------------------------------------------------
>John K. Scoggin, Jr.			Email:   scoggin@udel.edu
>Supervisor, Network Operations			 scoggin@delmarva.com
>Delmarva Power & Light Co.		Voice:	 302-451-5200
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A couple of months spent trying to make a SCSI 3480 stream on a variety
of Suns indicates to me that memory bandwidth in the Sun is going to be 
your limiting factor. It didn't appear to be able to keep a 3480 streaming,
and the  drive manufacturer suggested that the Sun file system was the 
bottleneck. It isn't the drives, because they do stream on a VAX 6000 series
machine running VMS (via a BI bus to SCSI converter). I was using SparcStation1
and SparcStation2 class machines, the Sparc10s or the 670 or 690 servers may
be a different story (but I don't have either, nor the 3480 any more).

Peter Van Epp / Operations and Technical Support 
Simon Fraser University, Burnaby, B.C. Canada