If you encounter status code 40 - "network connection broken" using Netbackup Fibre Transport Layer (FTL) on Windows 2003 SP2 and you see event id 129 - Source ql2300 in the event log
and vxlogview report some or all of the errors below for Fibre Transport service :
CHECK CONDITION
Valid = false
Error Code = 0x70
Segment Number (0) = 0x0
Mark = false
EOM = false
ILI = false
Sense Key = 0x9
Information Bytes MSB1 = 0x0
Information Bytes MSB0 = 0x0
Information Bytes LSB1 = 0x0
Information Bytes LSB0 = 0x0
Additional Sense Length (0xE) = 0x8
Command Specific Information Bytes MSB1 = 0x0
Command Specific Information Bytes MSB0 = 0x0
Command Specific Information Bytes LSB1 = 0x0
Command Specific Information Bytes LSB0 = 0x0
Additional Sense Code = 0x80
Additional Sense Code Qualifier = 0x2
Field Replaceable Unit Code = 0x0
SKSV = 0x0
C/D = 0x0
BPV = 0x0
Bit Pointer = 0x0
Field Pointer/Drive Error Code MSB = 0x0
Field Pointer/Drive Error Code LSB = 0x0
Command Descriptor Block (Hex Values, Cdb[0]...Cdb[15]) 3b 2 1 0 0 c1 4 0 0 0 0 0 0 0 0 0
10/20/2009 14:19:50.734 [BackupThread] 1272: Pipe ID = 1 ftseq 243 length 262144
10/20/2009 14:20:26.954 [BackupThread] 1272: Pipe ID 1 Exceeded MAX_SEM_TIMEOUT_COUNT at ftseq 244
10/20/2009 14:20:26.954 [BackupThread] 1272: Pipe ID 1 wait count source 0 dest 0 write ahead wait count 0 ioctl error count 5 Thread bytes 63963136 Total bytes 63963136
10/20/2009 14:20:26.954 [BackupThread] 1272: Pipe ID 1 stopped at ftseq 244 with 16 full buffers offlining device, Device name \\.\Scsi4:0.0.0
10/20/2009 14:20:26.954 [OpenPTDeviceHandle] \\.\Scsi4:0.0.0 m_HandleOpenCount 2
10/20/2009 14:20:26.954 [ValidateOpenDevice] DeviceInquiry succeeded; \\.\Scsi4:0.0.0
10/20/2009 14:20:26.954 [ClosePTDeviceHandle] \\.\Scsi4:0.0.0 m_HandleOpenCount 1
10/20/2009 14:20:26.969 [PipeCleanupTaskThread] (4712) PTT_PipeShutdown
Set the data rate to a fixed speed and the connect option to "Point to Point only".
