Instruction manual
20
Identify drive issues
If you close the browser or navigate away from
this page, you may re-access these results by
clicking the
Diagnostics
button and choosing the
Drive Performance and Health
option.
Results are available until the FastStream is
restarted.
Preliminary steps
1 If you are not already in the ExpressNAV
interface, type the IP address of your appliance,
as found in
Use the ExpressNAV interface
on
page 29, in a standard browser, click Enter
Here and type in your user name and
password.
2 Click the Diagnostics button
3 Click on the button for process you wish to use.
Initialize and verify drives
You may verify the status of storage which does
not belong to a RAID group (unattached storage).
If the verify operation detects an error, the
FastStream tries to re-initialize the drive, erasing
information stored on the drive. Be sure to back
up data before performing verification.
CAUTIONCAUTION
Data may be erased during this process.
Back up your data before selecting
Commit
.
1 Follow the instructions in
Preliminary steps
on
page 20.
2 Click the Initialize and Verify button
3 Click Next
4 If no drives appear in the information box, click
on the System Scan button.
If drives are available, click on the drives you
wish to test; the drives are highlighted. Drives
which belong to RAID groups cannot be
selected.
5Select Verify Only
6 Click Commit
7 A warning box appears. In the warning box,
verify that you want to complete the
configuration by clicking on Yes. Clicking on No
ends the procedure without making a change.
Scan drive surfaces: read only drive test
The read only test performs a non-destructive
scan over the entire surface of each drive to
identify bad areas of the disk drives and determine
read performance. It may be run while data is
passing through the FastStream.
Running this test may negatively impact
performance. Once the Read-only test has
completed, system operation returns to normal.
1 Follow the instructions in
Preliminary steps
on
page 20.
2 Click the Read-Only Drive Test button
3 Click Next
4 If no drives appear in the information box, click
on the System Scan button.
If drives are available, click on the drives you
wish to test; the drives are highlighted.
5 Click Commit
6 A warning box appears. In the warning box,
verify that you want to complete the
configuration by clicking on Yes. Clicking on No
ends the procedure without making a change.
Measure drive performance and health
New performance data is updated every 60
seconds which impacts performance slightly,
even if you minimize the browser window. Exit
the browser ExpressNAV interface completely
whenever you need maximum performance.
During the testing process, the
Drive
Performance
and Health
screen appears. Click
on
Show Help Text and Drives
for an
alternative view of the test progress.
During the tests the
Time Remaining
box tells
you how much time remains until the verification
process is complete. The representation of each
drive in the
Drives
box shows the percentage of
verification completed.