Compaq Infortrend manual Power on RAID Enclosure, Caching Parameters, Optimization Modes

Chapter

5

LCD Keypad Operation

5.1Power on RAID Enclosure

Before you start to configure a RAID system, make sure that hardware installation is completed before any configuration takes place. Power on your RAID enclosure.

5.2Caching Parameters

Optimization Modes

Mass storage applications can be categorized into two according to its read/write characteristics: database and video/imaging. To optimize the controller for these two categories, the controller has two embedded optimization modes with controller behaviors adjusted to different read/write parameters. They are the Optimization for Random I/O and the Optimization for Sequential I/O.

Limitations: There are limitations on the use of optimization modes.

1.You can select the stripe size of each array (logical drive) during the initial configuration. However, changing stripe size is only recommended for experienced engineers who have tested the effects tuning stripe sizes for different applications.

2.The array stripe size can only be changed during the initial configuration process.

3.Once the controller optimization mode is applied, access to different logical drives in a RAID system will follow the same optimized pattern. You can change the optimization mode later without having to re-organize your array.

Front Panel Operation 5-1