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To Display Status, Cancel or Pause a Media Scan:
1
Select the Display, Cancel, Pause option.
2
Click Next.
3
Choose the appropriate setting to check on the
status and to cancel or pause your Media Scan
To Schedule a Media Scan:
1
Select the Schedule option.
2
Click Next.
3
Select the Add Task button.
4
Enter the Media Scan type.
5
Enter the drives or RAID Group on which you
would like to schedule a Media Scan.
6
Enter the frequency, date and time to schedule
the Media Scan.
7
Click Commit.
Note
Enter time, day of week and 'daily' or 'weekly'
to schedule a scan on a recurring basis.You
may also view, reschedule and delete
scheduled Media Scan events on this page.
On-the-Fly Media Error Handling
If a media error occurs on a drive during normal data
transfers, the FastStream will reassign these blocks as
well as attempt to fix soft errors during normal read
and write data transfer operations.
Data Recovery Mode
In the event of an actual drive failure, Data Recovery
Mode attempts to provide access to data to be copied
to a new RAID Group. The option to force a rebuild to
continue in this mode is also available. If there is a soft
drive failure, it may be possible to continue using the
RAID Group.
In the ExpressNAV menu:
1
Click the Diagnostics button.
2
Click Use Recovery Mode.
3
Click Next button.
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ATTO Technology Inc. FastStream SC Installation and Operation Manual
Rebuild Recovery Mode
Rebuild Recovery Mode forces a rebuild to continue
even when errors are present. When complete, the
RAID Group is placed online and all data can be
accessed; however, data needs to be verified to
confirm that it is intact as a drive failure may have
damaged some portion of data.
Basic Recovery Mode
Basic Recovery Mode attempts access to a RAID
Group using any drive that was a member of that RAID
Group. Although all data may not be recovered from a
failed disk, existing data may be copied to a different
RAID Group.
Extreme Recovery Mode
Extreme Recovery Mode is an advanced mode which
allows RAID Group access in the event of multiple
drive failures. Data may be beyond recall, depending
on the failure mode of the drives, but attempts will be
made to give you access to remaining RAID Group
data.
WARNING
All recovery modes should be used with
care as they are powerful tools which if
misused could cause additional problems.
Default access is read-only, but write
access is also available so that file system
utilities can be used.
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