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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.
which impacts performance slightly, even if you
minimize the browser window. Exit the ExpressNAV
Storage Manager completely whenever you need
maximum performance.
Initialize and Verify Drives is Described in
Section 3.0,
Ensure Drive Integrity
15.
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 15.
1
2
Click the Read-Only Drive Test button.
3
17
ATTO Technology Inc. FastStream SC Installation and Operation Manual
3.1 Drive Diagnostics
Ensure Drive
Preliminary steps
1
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
6
If you chose to do a Read-Only Drive Test, the
Performance tab, in 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.
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