Specifications

13
ATTO Technology Inc. FastStream SC Installation and Operation Manual
system). Refer to FastStream process: adding
or removing Hot Spares on page 24 for details.
7 Click
Commit.
8 A warning box appears.
If you want to continue click
Yes. The
configuration completes and the
Health and
Status Monitor
page appears.
If you wish to start over, click
No.The Setup
Wizard
page appears.
General Digital Video, General IT or
Database
1 After choosing General Digital Video, General
IT
or Database, the Setup Wizard page
appears.
If all your drives do not appear in the
Find
Drives
box, click on System Scan.
2 Click on
Commit.
3 A warning box appears.
If you want to continue click
Yes. The
configuration completes and the
Health and
Status Monitor
page appears.
If you wish to start over, click
No.The Setup
Wizard
page appears.
Creating a custom setup
If the application setups do not suit your needs, you
may use
Custom Setup to configure the FastStream.
1 After choosing Custom Setup button, the
RAID Setup Wizard page appears.
2 Click on
Next.
3 Decide if you want all drives to be available to
both ports.
• If you select
Yes, the same node name is
assigned to both ports.
• If you select
No, different node names are
assigned to each FC port.
• The choice you make establishes the access
for all RAID groups attached to this
FastStream.
4 Select a RAID level. Refer to Design RAID
Groups on page xv of the Appendix
If you selected
RAID 1 with Multiple Mirrors,
type in the number of mirrors (copies) of the
original data you want to maintain in the box
provided.
5 Type a unique name for your RAID group in the
box provided on the page under the
Step 3
heading.
6 Click
Next.
7 Select the Interleave you want by clicking on
the drop down box.
CAUTIONCAUTION
The default value is usually best. Changing
the default interleave size may degrade
performance.
8 Select the option you want for the SpeedRead
feature. SpeedRead looks ahead during reads
and stores the data in cache memory.The
optimum setting depends on your actual I/O
and storage. You may adjust this setting later.
• Enabling SpeedRead may boost
performance when you are running video
playback and other applications which
access data sequentially.
• Disabling SpeedRead is a better choice for
audio applications.
• SpeedRead Auto is usually the best choice
for database applications.
9 Select the option you want for the
Auto-
Rebuild
feature if it is available for your RAID
configuration.
When Auto-Rebuild is enabled
• And an existing RAID group member
becomes faulted or unavailable, such as
when a drive is pulled out from an array, the
appliance initiates a rebuild using an
available unallocated drive.