User`s guide

Chapter 6: Modifying Your Direct Attached Storage ● 67
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.
● 100% Random
● 60%--80% Read
● 20%--40% Write
● 8Kb Blocks
SAS:
● R0 Sequential writes (all request sizes)
● R0 File server and Web server
● R5 Sequential writes (all request sizes)
● R5 Web server
● R6 Web server
● R10 Sequential writes
● R10 Web server
SATA:
● R0 Sequential reads (all request sizes)
● R0 Sequential writes (all request sizes)
● R0 File/print server
● R5 Sequential writes (256Kb request size)
● R5 Random writes
● R6 Sequential writes (all request sizes)
● R10 Sequential writes (all request sizes)
● R10 Workstation: