Gateway E-9510T Gateway 9510 Server User Guide - Page 127

Configuring your RAID solutions, Accept Array, RAID Level, Stripe Size, Read Policy, Normal

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Chapter 6: Configuring your RAID solutions 8 When the drives are defined, click Accept Array, then click Next. The Logical Drive definition screen opens. 9 Select the RAID Level from the list. 10 Select the Stripe Size from the list. Specify the size of the segment written to each disk in a RAID configuration. You can set the stripe size to 4, 8, 16, 32, 64, or 128 Kbytes. The default is 64 Kbytes. 11 Select the Read Policy from the list. Enables the read-ahead feature for the logical drive. You can set this parameter to Normal, Read-ahead, or Adaptive. Normal specifies that the controller does not use read-ahead for the current logical drive. Read-ahead specifies that additional consecutive stripes are read and buffered into cache. This option will improve performance for sequential reads. Adaptive specifies that the controller begins using readahead if the two most recent disk accesses occurred in sequential sectors. Read-ahead is the default setting. 122 www.gateway.com

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122
www.gateway.com
Chapter 6: Configuring your RAID solutions
8
When the drives are defined, click
Accept Array
, then click
Next
. The
Logical Drive
definition
screen opens.
9
Select the
RAID Level
from the list.
10
Select the
Stripe Size
from the list.
Specify the size of the segment written to each disk in a RAID configuration. You can
set the stripe size to 4, 8, 16, 32, 64, or 128 Kbytes. The default is 64 Kbytes.
11
Select the
Read Policy
from the list.
Enables the read-ahead feature for the logical drive. You can set this parameter to
Normal
,
Read-ahead
, or
Adaptive
.
Normal
specifies that the controller does not use
read-ahead for the current logical drive.
Read-ahead
specifies that additional
consecutive stripes are read and buffered into cache. This option will improve
performance for sequential reads.
Adaptive
specifies that the controller begins using
readahead if the two most recent disk accesses occurred in sequential sectors.
Read-ahead
is the default setting.