Summary
During the resolution phase of a block backup for a Windows Cluster, an error message indicating "Problem in creating unique temp directory" displays. This error contributed to the failure of the job.
Symptoms
The sequence of messages printed in the job log were:
SNBAPH_294J Processing jobdef, seldir list (whole node)
SNBAPH_302E Problem in creating unique temp directory from (C:\Program Files\DPX\tmp), vv_path (/ExpressDR/2.0/DR_CV_EXDAGP001)
SNBAPH_126E Func(AHOpPfs:run): Exception (OSError: [Errno 0] couldn't make directories: \\10.40.100.13\C$\Program Files\DPX\tmp\1458360000__ExpressDR_2.0_DR_CV_EXDAGP001 )
SNBAPH_331J prepare for snap operation for the VV (/ExpressDR/2.0/DR_CV_EXDAGP002) is complete.
SNBAPH_327E Error in prepare for snap operation for the VV (/ExpressDR/2.0/DR_CV_EXDAGP001)
SNBAPH_140E Error in prepare for snap operations
SNBAPH_126E Func(backup_): Exception (AHException: <AHException.AHException instance at 614692730> )
The IP address used as the source node for the messages was that of the DPX Cluster Service.
Resolution
Resetting the password on the CMAgent service for the member nodes of the cluster and the DPX Cluster Service solves the problem.