Identify Drive Issues; Preliminary Steps; Initialize And Verify Drives; Scan Drive Surfaces: Read-Only Drive Test - ATTO Technology FastStream VT 5300 Installation And Operation Manual

Identify drive issues

The FastStream VT collects various metrics to
measure performance for physical drives attached
to the FastStream during normal system operation
and drive initialization and verification.

Preliminary steps

1 If you are not already in the ExpressNAV
interface, type the IP address of your appliance,
Use the ExpressNAV interface
as found in
page 27, in a standard browser, click Enter
Here and type in your user name and
password.
2 The Monitor VTL page appears. On the menu
at the left hand side of the page, click on
Diagnostics.
3 The Diagnostics Menu page appears. Click on
the button for the process you wish to use.

Initialize and verify drives

You may verify the status of storage which does
not belong to a VTL (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.
CAUTION CAUTION
Data is erased during this process. Back
up your data before selecting Commit.
These operations have a negative impact
on the performance of normal operations;
all activity should be stopped.
1 Follow the instructions in
page 19.
2 Click the Initialize and Verify button
3 Click Next
4 Click on the drives you wish to test; the drives
are highlighted.
19
ATTO Technology Inc. FastStream VT 5300 Installation and Operation Manual
on
Preliminary steps
on
5 Select Verify Only
6 Click Commit
7 A warning message displays; choose yes to
continue.
8 The Drive Performance and Health screen
appears. 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.

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 test has completed, system
operation returns to normal.
1 Follow the instructions in
page 19.
2 Click the Read-Only Drive Test button
3 Click Next
4 Choose the drives you wish to test
5 Click Commit
6 A warning message displays; choose yes to
continue.
7 The Drive Performance and Health screen
appears with the Drive Metrics box displaying
basic information about the drives. Click on the
Show Help Text and Drives arrow.
8 If a drive is being read, its display shows the
percentage of progress. When the test is
complete, click on each drive to see its
information highlighted in the Drive Metrics
window.
Preliminary steps
on