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Re: Backup



===> Udi Finkelstein writes on May 26,  8:49am :
===>
===> Subject : Re: Backup
==>
=> On Sun, 26 May 1996 04:52:29 GMT, you wrote:
=> 
=> <stuff deleted here>
=> 
=> So far I'm checking KBackup 1.2.7 and taper 6.X.X, both are free.
=> taper seems more robust (written in C), but it creates it's own format (which
=> scares me), and not very fast. I was disappointed when it measured a backup
=> speed of 12-13MB/min, when I get 30MB/min under NT with NT Backup ("Backup
=> Exec Lite...").
=> 
=> <stuff deleted here>
=> 
==>
===> end of the message of Udi Finkelstein.

I am not sure how you measured the backup speed.
13MB/min = 780MB/hour is greater than backup speeds for the most advanced
DAT (4mm) tape drives (without compression). Theses have 500MB/hour.

Hardware compression will give you about twice the throuhput, when actualy
the same amount of (now after compression) data.

You may be backuping to a faster device, or the NT software is cheating
with its throuput report, or maybe you are not using compression on Linux.

Gili


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