I have 3584 with (8) FC-AL drives.  Delivered 4 months ago with 18N2
firmware.  After started using library, occasionally got error on library
(/dev/smc0) and drive1 - never on any other Drives.  Would leave tape
in drive.  IBM Tucson says has seen this problem at other sites.
Recommended upgrading to 22UD.  IBM rep did so and then was just
getting write errors on this one drive.  IBM replaced drive.  Workign much 
better for over one week but got one errror over weekend.  Will monitor
further.

TSM server 4.2.1.10 on AIX 4.3.3 ML09 with Atape 6.1.9.0.



David B. Longo
System Administrator
Health First, Inc.
3300 Fiske Blvd.
Rockledge, FL 32955-4305
PH      321.434.5536
Pager  321.634.8230
Fax:    321.434.5525
david.longo AT health-first DOT org


>>> tsmlist AT HOTMAIL DOT COM 05/13/02 04:53PM >>>
I was using 3584 with 16E0 firmware. It always caused I/O error and made all
the tape drives offline.

I upgraded to 22U0,  it worked fine a 4 weeks. But the same problem happened
again last week.

Regards,

Jason Liang