Summary
Intermittent return codes of 1139, those not caused by defective media, can be resolved by changing the default behavior of the DPX juker module.
Symptoms
A return code of 1139 (failure to unload a tape) leads to a tape drive failure.
Resolution
One possible scenario is that the device driver returns success from an unload operation but in reality the tape is still in the process of unloading.
In this case, the picker will advance to the drive only to find that the tape was not ejected from the drive. By default, the juker module will not retry a failed unload and return an 1139 error.
The following ssjuker options will change that behavior:
- [-r] Forces retry in juker dismount.
- [-q value] Retry count in juker dismount.
- [-t value] Sleep in seconds in juker dismount.
Windows: Append the following flags to the value data of the SSJUKER string value on the machine controlling the arm:
String Value: HKLM\Software\Syncsort\DPX\Nodename\0\SSJUKER
Additional Value Data: -r -q 5 -t 60
Linux: Append the following flags to /opt/DPX/bin/ssjuker file : -r -q 5 -t 60