"John R. Jackson" <[EMAIL PROTECTED]> writes:

> I recently converted a bunch of tapes from DLT4000 (20/40) to DLT7000
> (35/50).  The steps were:
> 
>   * Load the tape and wait for it to stop blinking.
> 
>   * Use the Select button on the front to enable density override and
>     change it to 35 or 35+compressed.
> 
>   * Run amlabel on the tape.  This was on Solaris.  I don't know if
>     that matters, i.e. whether it was just too dumb to send SCSI commands
>     that would have changed the density back or whether the button has
>     the final authority.  My guess is that the button wins.

Related topic: This procedure didn't work when I tried to disable
hardware compression. I had to write an empty data block to the tape
before running amlabel. My guess is that when amlabel tries to read
the old label it recognizes the tape as compressing and resets the
manual override.

        Sven

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