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From: lorenh@hpcvra.cv.hp.com. (Loren Heisey)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Expanz
Message-ID: <40730001@hpcvra.cv.hp.com.>
Date: 3 Jun 91 16:01:30 GMT
References: <1558@aoa.UUCP>
Organization: Hewlett-Packard Co., Corvallis, OR, USA
Lines: 18

>> Has anyone tried a board called Expanz. It is suppose to compress/decompress
>> your hard disk on the fly.  They claim that your disk size increases 2-3X.
>> I could believe that of text files..but binary?  They also claim a 
>> "performance" (speed?) gain of the same magnitude.
>
>I never liked these cards, like "Disk Doubler", that compress your 
>disk data, and uncompress it on the fly - if you lose your card, 
>you lose your data...

The Expanz card comes with a safety floppy that has a software emulation
mode that allows access to the data on the disk if the card fails. This
of course assumes the card did not mess up the data on the disk when it
failed.

--
Loren Heisey
Internet: lorenh@hpcvra.cv.hp.com
UUCP    : {decwrl|rutgers|ucbvax}!hplabs!hp-pcd!lorenh