Network Discover scan details

You can view detailed information about each Network Discover scan, including general scan information, scan statistics, recent errors, scan activity, and recent grid status.
For general scan details, see the
General scan detail
section in About Discover scan details.
Recent Grid Status
The
Recent Grid Status
section is a listing of the servers that were assigned to the scan target to perform a grid scan, as well as near real-time performance feedback. Using this information, administrators can troubleshoot the ongoing scan and as well as plan to improve the performance of future grid scans. Grid scanning is available only for File System (file share) and SharePoint scan targets.
"Last Hour" fields are populated for the first time one hour after the grid scan is initialized. Thereafter, these fields are updated at configurable intervals unless a particular detection server does not report its performance data on time.
Performance data for the participating detection servers is calculated and stored on the individual detection servers before being reported to the grid leader. However, if the grid leader changes during the scan, the values of all "Over Last Hour" fields is are reset to zero.
By default, the
Recent Grid Status
section is collapsed when you open the
Scan Detail
screen.
Recent Grid Status
Recent Grid Status Details
Description
Grid scan performance significance
Grid Leader
The name of the detection server that was assigned the role of grid leader during the scan.
You can click each server name to navigate to the
Server / Detector Detail
screen for that server.
Participating Detection Servers
The names of the detection servers in the grid that performed the scan.
You can click each server name to navigate to the
Server / Detector Detail
screen for that server.
Non-Participating Detection Servers
The names of the detection servers in the grid that were unable to perform the scan. An error message is displayed next to each server name to describe the reason for its inability to participate in the scan.
You can click each server name to navigate to the
Server / Detector Detail
screen for that server.
Wait Time
The total amount of time elapsed since the start of the scan during which the grid leader pause file crawling due to unavailability of grid followers.
A lower value is better. Non-zero values indicate that there might be too few participating grid followers.
Ideally, the grid leader
Wait Time
should be 0 and the
CPU Usage %
for participating grid followers should be close to 80%.
Wait Time (Last Hour)
The average amount of time elapsed over the preceding hour during which the grid leader pause file crawling due to unavailability of grid followers.
CPU Usage %
The total processor usage.
  • For grid leaders:
    Used to track the grid leader throughput with respect to filtering.
  • For grid followers:
    A high value is better. Values less than 80% indicate that the grid leader might be affecting grid scan performance.
CPU Usage % (Last Hour)
Applicable to grid followers only.
The average processor usage over the preceding hour.
Download Rate
The average file download speed since the start of the scan.
A higher value is better. A low value indicates that the network, a file share server, or a Microsoft SharePoint repository might be experiencing latency.
Download Rate (Last Hour)
The average file download speed over the preceding hour.
Access Time - Fetch
The average time taken to retrieve the value of the
Last Accessed
attribute of processed files.
A lower value is better. A high value indicates that the network, a file share server, or a Microsoft SharePoint repository might be experiencing latency.
Access Time - Reset
The average time taken to reset the
Last Accessed
attribute of processed items to the original value.
Access Time (Last Hour) - Fetch
The average time taken to retrieve the value of the
Last Accessed
attribute of processed files over the preceding hour.
A lower value is better. A high value indicates that the network, a file share server, or a Microsoft SharePoint repository might be experiencing latency.
Access Time (Last Hour) - Reset
The average time taken to reset the
Last Accessed
attribute of processed items to the original value over the preceding hour.