tape/backup systems

[George Goble]

In article <12701 at encore.Encore.COM> terryk at encore.com (Terence Kelleher) writes:
>How do large systems typically deal with the problem of backups?  I am
>trying to find answers for a 50-100 Gbyte disk system.  
>
>Although 8mm and 4mm have the capacity to handle the amount of data
>efficiently, the transfer rates are quite slow, given the volume of
>data to move.  Also, the reliability of the heilical scan devices is
>well established.
>

The Exabyte EXB-8500 8mm drive, due out in the near future, will do
30MB/min xfer, and 5GB on a P5-90 8mm tape. This compares to approx 2.5GB
and 15 MB/min for the current EXB-8200.
--ghg