DELL MD3220 사용자 설명서

Configuration: Disk Groups and Virtual Disks

To change the I/O type:

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

application needs:
• File system (typical)
• Database
• Multimedia
• Custom
The corresponding dynamic cache read prefetch setting and segment size 

values that are typically well suited for the selected virtual disk I/O 

characteristic type are populated in the Dynamic cache read prefetch and 

Segment size fields.

If you selected the Custom option, select your preferred dynamic 

cache read prefetch setting (enabled/disabled) and segment size (8KB to 

512KB).

2 Click OK.

You can create disk groups and virtual disks in the storage array. You must 

select the capacity that you want to allocate for the virtual disk from either 

unconfigured capacity or free capacity available in the storage array. Then you 

define basic and optional advanced parameters for the virtual disk.
With the advent of different physical disk technologies, it is now possible to 

mix physical disks with different media types and different interface types 

within a single storage array. In this release of MDSM, the following media 

types are supported:

• Hard physical disk
• Solid State Disk (SSD)

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