For some in-depth info on shoe-shining (aka backhitching), which affects
the performance of many different kinds of tape drives (including DDS,
DLT, Mammoth, and others), check out 

If you have Real streaming video, you'll be able to see some video
footage of actual backhitching on this page. We put this together at
Ecrix a couple of years ago... Of course the point is that Ecrix's VXA
drives don't do this.

- Frank Saab

> Subject: Re: Purchasing a new system (tape drive performance)
> From: "Douglas K Wyman" <[EMAIL PROTECTED]>
> Date: Fri, 26 Jan 2001 10:57:08 -0600
> The loss in capacity comes from the drive's attempt to continue tape
> motion while waiting for new data to arrive in the write buffer.
> No data is recorded while the tape continues to move forward.
> ...
> The wear-and-tear effect of tape repositioning (aka "shoe shining") is
> the predominant factor in the differences in drive reliability and
> performance observed by different users.

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