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From: terryk@pinocchio (Terence Kelleher)
Newsgroups: comp.periphs
Subject: Re: Need info about CDC Wren hard disks
Message-ID: <10346@encore.Encore.COM>
Date: 12 Nov 89 01:17:18 GMT
References: <442@cs.columbia.edu> <4124@netcom.UUCP>
Sender: news@Encore.COM
Reply-To: terryk@pinocchio (Terence Kelleher)
Distribution: usa
Organization: Encore Computer Corp
Lines: 15
In-reply-to: hue@netcom.UUCP (Jonathan Hue)

At Encore, we currently use the Wren V SCSI as the standard drive on
our Series 10 machine.  Prior to the V we used the IV.  They are both
excelent drives.  They have performed well for us, both in speed and
reliability.  Prices, I don't know.  That's purchasing's problem :-).

The Wren series includes many drives, in a wide range of sizes.  Most
of the drives are available with SCSI or ESDI.  Some SCSI drives have
a higher capacity by use of ZBR (zoned bit recording).  The read/write
clock runs faster on outer cylinders, giving a higher density per
track. This is not possible with ESDI as the number of sectors per
track is not constant and external controllers cannot deal with this.  
-- 
Terry Kelleher, Encore Computer
Phone: 607-798-9602
Internet: terryk@encore.encore.com