Try this and see if it helps.............

1. take the drive path offline in TSM
Then the drive offline in TSM
2. run: rmdev -Rdl fscsi11
3. rmdev -Rl fcs11
4. cfgmgr -l fcs11
Then place the drive online in TSM
5. Put the drive PATH back online in TSM

The drive will come back as rmt9 as long as no other changes are made to drives.

Need to run commands to find the associated rmtxx to fscsixx and fcsxx.  Some 
of the rmtxx still created AIX ERRPT ID 5537AC5F TAPE DRIVE FAILURE MESSAGE 
after running the above commands after a while.

-----Original Message-----
From: Lamb, Charles P. 
Sent: Thursday, September 11, 2014 10:26 AM
To: Hartman, Thomas J.; Goebel, Curtis J.
Subject: FW: AIX ERRPT ID 5537AC5F TAPE DRIVE FAILURE MESSAGE Question

Fyi.............

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
James Thorne
Sent: Thursday, September 11, 2014 10:22 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] AIX ERRPT ID 5537AC5F TAPE DRIVE FAILURE MESSAGE Question

Hi.

We have quite a few of these per week (we had six last night).  When we raised 
it with IBM, we were told that they were "spurious" so I would be interested if 
that turns out not to be the case.  They make spotting real tape errors [a 
little] more time consuming.

James.

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Lamb, Charles P.
Sent: 11 September 2014 16:13
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] AIX ERRPT ID 5537AC5F TAPE DRIVE FAILURE MESSAGE Question

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

Has anyone experienced AIX ERRPT ID 5537AC5F TAPE DRIVE FAILURE MESSAGE??  IBM 
says this appears to be an FCS/FSCSI protocol driver issue and are looking into 
this issue (PMR 28375,379,000/PMR# 71738,379,000).

AIX V6.1.9.3
Atape V12.8.0.0
TSM Server V6.2.5.0

LABEL:          TAPE_ERR4
IDENTIFIER:     5537AC5F

Date/Time:       Tue Sep  9 22:38:02 CDT 2014
Sequence Number: 811703
Machine Id:      0009C7A6D600
Node Id:         cgoaix08
Class:           H
Type:            PERM
WPAR:            Global
Resource Name:   rmt9
Resource Class:  tape
Resource Type:   3580
Location:        U7311.D20.067F4CB-P1-C03-T1-W50050763004B190C-L0

VPD:
        Manufacturer................IBM
        Machine Type and Model......ULT3580-TD4
        Serial Number...............00078C0D17
        Device Specific.(FW)........C7QH

Description
TAPE DRIVE FAILURE

Probable Causes
ADAPTER
TAPE DRIVE

Failure Causes
ADAPTER
TAPE DRIVE

        Recommended Actions
        PERFORM PROBLEM DETERMINATION PROCEDURES

Detail Data
SENSE DATA
0600 0000 1B00 0000 0000 0000 0000 0000 0200 0300 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000