Optimizing Logical Drive Performance

To ensure optimal performance of the logical drives in your storage space, you can select an application-specific performance mode to improve I/O throughput based on the needs of your application. The following performance modes are supported by maxView Storage Manager.

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 or 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

Big Block Bypass Bypasses DRAM write cache based on I/O write size

Adjusts stripe size flush for simple volumes to 128K minimum

Optimizes performance for Web servers, file servers, and databases

To select a performance mode for the logical drives on a controller:

  1. In the Enterprise View, select a controller, then select a logical drive on that controller.
  2. On the ribbon, in the Logical Device group, click Set Properties.

    The Set Properties window opens.
  3. In the Performance Mode drop-down list, select the application type: Dynamic, OLTP, or Big Block Bypass.
  4. Click OK.
  5. Shutdown maxView Storage Manager and reboot the system.
    Note: You must reboot the system for the performance mode setting to take effect.

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