Asus AZCRB Global Array Manager Transition Tool - Page 21

ASUS Zero-Channel RAID Board, Advanced Menu, Stripe Size, Write Policy

Page 21 highlights

7. Select the Advanced Menu to set the stripe size, write policy, read policy, and cache policy. Logical Drive 1 RAID = 5 Size = 52563MB Advanced Menu Accept Advanced StripeSize = 64MB Write Policy = WRTHRU Cache Policy Cache IO Direct IO Read Policy = NORMAL Cache Policy = Direct I/O Stripe Size - specifies the size of the segments written to each disk in an array. You can set the stripe size to either 2KB, 4KB, 8KB, 16KB, 32KB, 64KB, or 128KB. A larger stripe size allows better performance when your system does sequential reads often. Other set to a smaller stripe size. Write Policy - sets the caching method. In Write-back method, the controller sends a data transfer completion signal to the host when the controller cache has received all the data in a transaction. In Write-through, the controller sends a data transfer completion signal to the host when the disk subsystem has received all the data in a transaction. Write-through allows more data security than Write-back, but the latter allows better performance. ASUS Zero-Channel RAID Board 21

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ASUS Zero-Channel RAID Board
21
7.
Select the
Advanced Menu
to set the stripe size, write policy, read policy, and
cache policy.
RAID = 5
Size = 52563MB
Advanced Menu
Accept
Logical Drive 1
StripeSize = 64MB
Write Policy = WRTHRU
Read Policy = NORMAL
Cache Policy = Direct I/O
Advanced
Cache IO
Direct IO
Cache Policy
Stripe Size
- specifies the size of the segments written to each disk in an array. You
can set the stripe size to either 2KB, 4KB, 8KB, 16KB, 32KB, 64KB, or 128KB. A
larger stripe size allows better performance when your system does sequential reads
often. Other set to a smaller stripe size.
Write Policy
- sets the caching method. In
Write-back
method, the controller sends
a data transfer completion signal to the host when the controller cache has received
all the data in a transaction. In
Write-through
, the controller sends a data transfer
completion signal to the host when the disk subsystem has received all the data in a
transaction. Write-through allows more data security than Write-back, but the latter
allows better performance.