On Mon, 28 Jul 1997, Prather, Wanda wrote:

> We have been using the DLT7000's in an STK 9710 library since May.  They
> installed and worked the first try, and have caused no problems since.

How much testing did you do of rereading the data?  Nearly all of my
errors occur during audit volume ot move data.  Another person having
problems reported the drives in a STK 9710, and seeing the read errors
during reading primary stgpool volumes to create copystgpools.

You might want to try auditing some of your volumes.  If you get this:

ANR8302E I/O error on drive Q7.1.2MT (/dev/rmt/2mt) (OP=READ, CC=305,
KEY=03,^M
ASC=80, ASCQ=00, Description=Drive failure).  Refer to Appendix B in the^M
'Messages' manual for recommended action.^M
ANR2335W Audit Volume has encountered an I/O error for volume A0029
while^M
attempting to read: Node LISTSERV.ACSU.BUFFALO.EDU, Type Backup,
Filespace^M
/ssa, File Name /listserv/Maildir/new/
869138173.13902.listserv.acsu.buffalo.e-^
M
du.^M

The you have the same problems.  the ASC=80, ASCQ=00 is a calibration
error.  Once I see that, all subsequent reads fails with these:

ANR8302E I/O error on drive Q7.1.2MT (/dev/rmt/2mt) (OP=READ, CC=306,
KEY=03,^M
ASC=11, ASCQ=00, Description=Drive or media failure).  Refer to Appendix B
in^M
the 'Messages' manual for recommended action.^M
ANR8359E Media fault detected on DLT volume A0029 in drive Q7.1.2MT
(/dev/rmt/-^
M
2mt) of library Q7.1.^M
ANR2335W Audit Volume has encountered an I/O error for volume A0029
while^M

which are general read failures.

Steve (unVMix Systems Programmer/Dude) Roder
(tkssteve AT ubvm.cc.buffalo DOT edu | tkssteve AT acsu.buffalo DOT edu | 
(716)645-3564 ,
   | http://ubvm.cc.buffalo.edu/~tkssteve)