Chapter 6: Modifying Your Direct Attached Storage
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Optimizing Logical Drive Performance
To ensure optimal performance of the logical drives in your storage space, you can select a
performance mode
to improve I/O throughput based on the needs of your application. (This
feature is not supported on all controllers.) The following application-specific performance
modes are supported by Adaptec Storage Manager.
To select a performance mode for the logical drives on a controller:
1
In the Enterprise View, select the controller you want.
2
In the menu bar, select
Actions
, click
Change performance mode
, then select an
application type.
3
Shutdown Adaptec Storage Manager and reboot the system.
Note:
You
must
reboot the system before the performance mode setting takes effect.
Performance Mode
Performance Criteria
Best Performance
Dynamic (default)
●
Automatically adjusts
criteria based on
controller usage, RAID
level, and disk drive
type
—
Online Transaction
Process (OLTP)/
Database—a system that
facilitates and manages
transaction-oriented
applications, such as
data entry and retrieval
applications.
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100% Random
●
60%--80% Read
●
20%--40% Write
●
8Kb Blocks
SAS:
●
R0 Sequential writes (all request sizes)
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R0 File server and Web server
●
R5 Sequential writes (all request sizes)
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R5 Web server
●
R6 Web server
●
R10 Sequential writes
●
R10 Web server
SATA:
●
R0 Sequential reads (all request sizes)
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R0 Sequential writes (all request sizes)
●
R0 File/print server
●
R5 Sequential writes (256Kb request size)
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R5 Random writes
●
R6 Sequential writes (all request sizes)
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R10 Sequential writes (all request sizes)
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R10 Workstation:
