Level 90 microcode is available for the DLT7000.  It addresses problems with
broken leaders and high speed search/positioning.  We have been running it in an
AIX, ADSM V2, and STK 9710 environment for over a month with no problems.  Also,
we are running a patched AIX mt device driver whcih addresses I/O errors on
LOCATE with the DLT7000 (they timeout under situations where the on-tape
directory is determined to be in error).  The patched mt device driver is
available through ADSM support.

Louie, James wrote:

> We just solved our problem with ADSM NT , STK 9710, and DLT7000 drives
> marking a tape read-only and putting it into an error state with a write
> error whenever it reached the end of a volume.  We upgraded the firmware on
> our DLT drives to level 70 and everything works fine now.  NT control panel,
> tape drives, properties reports DLT7000 version 1E46.
>
> Thanks to a previous poster for the advice on obtaining the firmware fix.
>
> James Louie
> Nabisco