ATTO Technology FastStream SC 5300 Installation And Operation Manual page 20

CAUTION CAUTION
The default value is usually best. Changing
the default interleave size may degrade
performance.
15 Select the Sector Size .The RAID group sector
size must be evenly divisible by the sector size
of any member disk.
• 512 bytes is the default size for most
operating systems.
• For Windows XP (32-bit support) select 4 KB
sectors to enable large volume support
(greater than 2 TB).
16 Select a SpeedRead option. 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.
15
ATTO Technology Inc. FastStream SC Installation and Operation Manual
17 Select a Pre-Fetch option--the number of extra
stripes that are read when the SpeedRead
setting is set to enabled or auto.
18 Select an Auto-Rebuild option if it is available
for your RAID configuration (refer to
Rebuild on page 11).
19 Select a Rebuild Priority . Rebuild Priority
allows you to determine whether rebuild or I/O
transactions take precedence during rebuild
operations. If you choose low priority, for
example, rebuilds take longer but the rebuild
has minimal impact on performance.
20 Click on Next.
21 A chart showing the setup you have selected
appears. If everything is the way you want it,
click on Commit to save your configuration.
22 A warning box tells you that all data on the
attached disks is to be destroyed and the
rebuild process may take up to two hours to
complete.
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.
23 Click on Commit.
24 The FastStream configures the storage: the
process may take several hours. When the
process is complete, the Health and Status
Monitor page appears.
Auto-