Installation manual

37 ATTO Technology Inc. ATTO Utilities Installation and Operation Manual
Viewing the Scan Report
1 Select the ExpressSAS RAID or
ThunderStream SC storage controller from the
Device Listing panel.
2 Select the RAID tab in the right panel.
3 Select the RAID group, Hot Spare drive(s) or
unallocated drive(s) whose scan report should
be displayed. One RAID group can be selected
or multiple Hot Spare and unallocated drives
can be selected.
4 Select the RAID Management menu item at
the top of the screen.
5 Select the Scan Report from the menu.
6A Media Scan Error Report message box
appears with the scan results. If a scan is
currently in process the Scanned column
indicates the percent complete for the
operation.
The Scan Report includes the counts for the most recent
scan and the total results for all Media Scan operations.
This information is persistent for RAID group drives and
Hot Spare drives since it is stored in meta-data of the
drive. The results may be erased from the drive when the
meta-data is re-written. e.g. The information is lost from a
Hot Spare when the Hot Spare is added to a RAID group.
The results of a Media Scan for an un allocated drive are
only available until a reboot occurs.
Media Scan provides the following metrics:
1 Media errors detected on most recent scan in
the Errors column.
2 Media errors corrected on most recent scan.
3 Total stripe groups scanned on most recent
scan. This data is not displayed in
Configuration Tool.
4 Media errors detected on all scans in the Total
Errors column.
5 Media errors corrected on all scans
6 Total number of all scans in the Scans column.
The Media Scan Error Report does not display the
count of corrected errors. The corrected error count is
displayed while the mouse pointer hovers over the
Errors or Total Errors value for a specific drive. If the
detected errors do not equal the corrected errors the
warning icon appears to the left of device name
column.
The Scan Report is updated by the Configuration Tool
every 10 seconds. The metrics are not updated when the
Media Scan is paused.