Dell MD3620I, MD3600I Changing the I/O Type, File system typical Database Multimedia Custom, 116

The segment size modification operation begins. The virtual disk icon in the Logical pane shows an Operation in Progress status while the operation is taking place.

NOTE: To view the progress or change the priority of the modification operation, select a virtual disk in the disk group, and select Virtual Disk→ Change→ Modification Priority.

Changing the I/O Type

You can specify the virtual disk I/O characteristics for the virtual disks that you are defining as part of the storage array configuration. The expected I/O characteristics of the virtual disk is used by the system to indicate an applicable default virtual disk segment size and dynamic cache read prefetch setting. Refer to the PowerVault Modular Disk Storage Manager online help topics for information on the Automatic Configuration Wizard.

NOTE: The dynamic cache read prefetch setting can be changed later by selecting Virtual Disk→ Change→ Cache Settings. You can change the segment size later by selecting Virtual Disk→ Change→ Segment Size.

The I/O characteristic types shown below are only presented during the create virtual disk process.

When you choose one of the virtual disk I/O characteristics, the corresponding dynamic cache prefetch setting and segment size that are typically well suited for expected I/O patterns are populated in the Dynamic cache read prefetch field and the Segment size field.

To change the I/O type:

1Select from these virtual disk I/O characteristic types, based on your application needs:

•File system (typical)

•Database

•Multimedia

•Custom

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Configuration: Disk Groups and Virtual Disks