We had a similar problem, minus the cleaning cartridge part, and the
resolution was not hardware related.  The problem was reportedly fixed
by our upgrade to version 3, but fixed just means that it won't happen
to any new tapes. We were told that the only thing that repairs the lost
VCR data is a subsequent mount of those tapes.  Since we have gone to
version 3 we see the "lost VCR" message when one of the effected tapes
is requested, and the mount is delayed for about 45 minutes while the
data is repaired.  From what I can tell there have been no new instances
since the upgrade, we just have to wait for all the old ones to get
cleaned up.

Hope this helps.

> Subject: Lost VCR DATA--3570/3575
> Author:  "ADSM: Dist Stor Manager" <ADSM-L AT vm.marist DOT edu> at INTERNET
> Date:    5/21/98 9:43 AM
>
>
> We have ADSM 2.1.5.13 - A 3466 Netstore with 3570/3575 drives.
>
> We had some drives that needed cleaning but the cleaning cartridge was
> not in
> the tape silo -- therefore, when tapes were read we received the
> following
> message:
>
> 05/21/1998 09:38:59  ANR8776W Volume 164543 in drive RMT3 (/dev/rmt3)
> contains lost VCR data; performance may be degraded.
>
> The IBM CE came out and worked on the physical box, we thought the
> problem
> was fixed.  Then when the tape drive mounted the tapes with VCR lost
> data on
> them, we get an I/O error - LOCA
> TE error -- then ADSM just hangs.
>
> I am opening a PMR this morning with IBM - but thought I'd throw this
> out
> there to see if anyone else experienced this problem and has any
> recommendations....Thanks.
>