Bob,

> We had problems after our upgrade to 3590Es with I/O errors (message
> ANR8302E). Sense indicated tape tensioning error. 3590E drive microcode
> installed by IBM was C747. Within a couple of days IBM recommended
upgrading
> to level CA70, which is supposed to fix this problem. We have had no
> problems of this nature since the code was upgraded (couple of weeks
> running).
>
Yes ... its D0IC_994.

> Also check that after the upgrade you did a "delete drive" and "define
> drive" for all the 3590Es; otherwise ADSM thinks they are still 3590Bs
Yes I did also that.

But the error come out at the end. Was the pressure of the vacuum
chamber. One of the CE change it on 2 drives without the gauge and it was
wrong!

Thank you very much

Mauro, STM