What we can learn from your data Fox:
winnas_util.log on collector_2
Successful login credentials and discovery of 3 shares. This is at the share level and does not guarantee permissions to enter the shares (share level permission) or traverse the file system (ACL).
winnasd.log on Winnas Agent worker node_7
This server is not that busy, likely a test environment but we are capturing the events indicating the credentials can reach the library on the Windows NAS server. This is working as expected.
Commd log
Taking an example share, say \Backup we see Process line : #f=7|#d=72|nsleeps=0 (7 files and 72 directories), or Matrix Storage Unit (MSU) Identifier is 6. This data seems askew since we have more containers than contents. I would expect files in each container / folder. You can verify if this is a correct count for your share?
ERROR: V-378-1310-5557: #{2844} [latency_shmem_attach: 2106] util|Failed|latency_shmem_attach|apr_shm_attach|astatus:720002
Which is couldn't create child process. I would think we cannot create or access the shared memory segment to gather the scan data prior to creation of the files to be transferred to the collector. In the log I only saw the first snapshot file being created.
Troubleshooting -
Check the permissions for the service user (typically system user and installed as local Administrator), verify the binaries are associated and can cal libraries and dependencies, confirm the environment allows the scan user to RW to the directory hierarchy for the DataInsight binaries and data parent locations which by default are:
Installation directory - C:\Program Files\Symantec\DataInsight
Data directory - C:\DataInsight\data
This is typically an environment issue. A support case for interactive debugging on your system is best if you cannot figure the problem quickly. Your support technician will ask for troubleshooting to be enabled to capture the intermediary files such as C:\DataInsight\data\outbox\scan_cifs_6_0_1435730884_snap1.sqlite for analysis as well.
If you'd like to continue troubleshooting in the community channel then we will be looking into one more log to dive into the Scanner for share 6 failed with exit code: 263 (incremental:false). It is the full scan log we want - C:\Program Files\Symantec\DataInsight\log\scanner\ext3_msu6.log please.
Rod