Dell PowerVault MD3200 Owner's Manual - Page 103

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. NOTE: 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. Choosing an Appropriate Physical Disk Type 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) Configuration: Disk Groups and Virtual Disks 103