When you start getting issues like this, it's sometimes hard to figure
out.  But I'd say it's more likely the new media.  
Sometimes you'll get a batch with 3-4 bad cartridges, and the only thing
to do is ditch them.  And if you're having heat issues, I'd guess it's
more likely affecting the media than the drives.

-Obviously, if the problem occurs only on 1 drive, with lots of
different cartridges, make the CE replace it no matter what his
diagnostics say. 

-Make SURE you have NEW cleaning cartridges available in the library,
and have the 3584 autoclean on, not TSM clean, if at all possible.

-If you aren't convinced it's the media instead of the drives, I'd
suggest turning on CRC check on the storage pools, and doing AUDIT on
all the tapes that get created for a while.  (There is a parm on AUDIT
now, so you can set up an automated admin schedule that says "run audit
on any volumes created in the last 24 hours").
That's not a big load on you, and it will prove that tapes are READABLE
just after they are written.   

W


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Lamb, Charles P.
Sent: Thursday, March 18, 2010 11:16 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] IBM 3588-F3B Tape Drive Question

Hi..............

We are starting to see media faults on long tape(new HP LTO3) runs
(2-4hrs) on our IBM 3588-F3B tape drives.  IBM CE has done all of his
diagnostics which shows media faults.  We are wondering if it may be
weak tape drives because of long tape drive runs.


Has anyone experience this type operation of the IBM 3588-FB3 tape
drives??  Could we be having long term heat issues in our Data Center
concerning tape drives??

03/17/2010 22:34:57  ANR8330I LTO volume 301313L3 is mounted R/W in
drive
                      DRIVE00 (/dev/rmt0), status: IN USE. (SESSION:
862)
03/18/2010 02:18:00  ANR8944E Hardware or media error on drive DRIVE00
                      (/dev/rmt0) with volume 301313L3(OP=READ, Error
Number=
                      110, CC=0, KEY=03, ASC=31, ASCQ=00,
 
SENSE=F0.00.03.00.04.00.00.58.00.00.00.00.31.00.36.00.70-
 
.75.00.02.00.01.33.30.31.33.31.33.4C.0E.00.00.5B.9E.C7.0-
 
0.00.00.00.00.80.08.30.00.00.00.19.AC.B8.00.01.40.E7.70.-
 
60.1F.48.70.76.1F.B8.70.75.1F.53.70.75.00.02.1F.30.01.20-
 
.00.E0.20.00.00.00.02.90.00.20.00.00.03.38.38.4D.30.00.0-
                      0.00.00.00.00, Description=An undetermined error
has
                      occurred). Refer to Appendix C in the 'Messages'
manual
                      for recommended action. (PROCESS: 10)
03/18/2010 02:40:14  ANR8336I Verifying label of LTO volume 301313L3 in
drive
                      DRIVE00 (/dev/rmt0). (PROCESS: 10)
03/18/2010 02:40:48  ANR8468I LTO volume 301313L3 dismounted from drive
DRIVE00
                      (/dev/rmt0) in library 3584LIB. (PROCESS: 10)