Drive Diagnostics; Preliminary Steps; Read-Only Drive Test - ATTO Technology FastStream SC 5500 Installation And Operation Manual

You may determine the performance of drives attached to the FastStream using various displays and tests in
ExpressNAV Storage Manager.
The following instructions assume you have already
set up at least one RAID group.
The ATTO FastStream collects various metrics to
measure performance for physical drives attached to
the FastStream during normal system operation and
drive initialization and verification.
New performance data is updated every 60 seconds
which impacts performance slightly, even if you
minimize the browser window. Exit the ExpressNAV
Storage Manager completely whenever you need
maximum performance.
Note
Initialize and Verify Drives is Described in
Section 3.0, Ensure Drive Integrity
14.

Read-only Drive Test

The Read-Only Drive 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 Drive Test has completed,
system operation returns to normal.
To fix errors on disks, use the Initialize and Verify
Drives process as described in
Integrity on page 14.
1 Follow the instructions in
above.
2 Click the Read-Only Drive Test button.
3 Click Next.
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ATTO Technology Inc. FastStream SC Installation and Operation Manual

6.2 Drive Diagnostics

on page
Ensure Drive

Preliminary steps

Preliminary steps
1 If you are not already in the ExpressNAV
Storage Manager, type the IP address of your
controller in a standard browser. On the splash
screen, click Enter Here. In the box provided,
type in your user name and password, and click
OK.
2 The Health and Status Monitor page appears.
Click the Diagnostics button on the left hand
menu.
3 Select the operation you wish to perform from
the next menu presented.
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.
If you chose to do a Read-Only Drive Test, the
Drive Performance and Health page appears
showing what tests are running and their
results. You may select other tests to run or
continue on to other tasks.