[Veritas-bu] DOWN drives during NDMP backups.

I'm running 6.0 and have had a drive go down two nights in a row.  This
is an NDMP backup and I don't have any indication about it in bptm
logs.  I see the DOWN message in ltid logs, but I don't see anything
nearby that would suggest why it went down.

[...]
20:11:37.190 [6862] <4> LtidProcCmd: Pid=6921, Data.Pid=6921, Type=56,
Param1=31, Param2=0, LongParam=0
20:11:37.190 [6862] <4> LtidProcCmd: Sending UNLOAD DONE msg to BPTM
(dev 31, PID 18909)
20:11:37.190 [6862] <4> send_request_answer: Pid=18909, Type=0,
ReturnType=12, DataType=0, MsgRes.SC=0
20:11:43.203 [6862] <4> emmlib_UpdateMachineState: (0) Machine < backup7
>, NetBackupVersion < 600000 >, MachineStateOpCode < 3 >
20:11:43.210 [6862] <4> emmlib_UpdateMachineState: (0) Machine < backup7
>, Previous MachineStateBits < 14 >
20:12:09.261 [6862] <4> LtidProcCmd: Pid=19479, Data.Pid=19479,
Type=100, Param1=0, Param2=0, LongParam=0
20:12:10.263 [6862] <4> LtidProcCmd: Pid=19479, Data.Pid=19479,
Type=126, Param1=31, Param2=1, LongParam=0
20:12:10.263 [6862] <6> DownDrivePath: DOWNing path nrst1a for SanFiler-14
on host bk-sc
20:12:10.263 [6862] <6> WriteEntry: Updating drive SanFiler-14 serial
number 1042001403 at path nrst1a on attach host sanfiler
20:12:10.354 [6862] <4> update_drive: (0) UpdateDrive returned 0x0
[...]

bptm suggsets unmounting, but I don't see any problems.  Nothing after
this in bptm appears related to this drive.
20:09:40.377 [18909] <2> process_tapealert: TapeAlert returned
0x00000000 0x00000000 (from tapealert_and_release)
20:09:40.420 [18909] <2> NdmpSession: ndmp_public_session_destory:
destroying session 0x82e3870
20:09:40.420 [18909] <2> really_tpunmount: tpunmount'ing
/usr/openv/netbackup/db/media/tpreq/drive_SanFiler-14

Any suggestions appreciated.  Thanks!

-- 
Darren
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