Re: Q: How do backup tapes know to span?
Date: Thu, 23 Dec 2004 11:33:23 -0700
"James Lehman" <james[remove]@akrobiz.com> wrote:
>I'm supposed to copy sets of Tandberg Streamers (QIC 1000). Given a set of 3
>tapes that span. When their originals are used with their restore
>application, it prompts for tape #2, & #3. My copies have all of the data
>but do not cause the application to prompt. So it doesn't work. I open a
>file descriptor on the device and read blocks until I get a block of zero
>data read. Then I know I am at the end of something. I save the block index
>and read another block. If I get more data, I keep going. If not, I am at
>That's the question!!!
>End Of Data or End Of Tape?
>How would I know?
>Thanks! James. :o)
There should be some data on the tape telling what tape in the series it is, and
if there is another tape following in the series. Format's gonna be dependent
on the software that did the backup.
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