Users Guide

physical disk enclosure or complete drawer failure without failing the virtual disk(s) in the disk group. DA
provides data integrity checking between the RAID controller module to the physical disk, ensuring data
is written to disk correctly.
Figure 35. Create Disk Group dialog box
Selecting physical disk in the table view updates the Capacity information in the upper right corner of the
page showing the final capacity for the new disk group or disk pool.
NOTE: Review Defining virtual disks for vsphere and Virtual disk decision-making schemes to best
configure the MD Storage Manager for VMware vSphere environments.
Create Disk Pool
Dynamic Disk Pools (DDPs) are a feature of firmware versions 7.83 and later that provide for highly
redundant and scalable RAID architecture, also known as Controlled, Scalable, Decentralized Placement
of Replicated Data (CRUSH). This technology is used in place of traditional disk groups. Release 3.0
supports creation, management, and deletion of DDPs on the MD Storage Manager storage arrays.
To create a new DDP, click the Create Disk Group icon and select Disk Pool from the RAID level drop-
down menu. Select the physical disks to include in the disk pool.
NOTE: You must select a minimum of 11 physical disks to create a Dynamic Disk Pool.
Create Virtual Disks
Before creating a virtual disks that can be used by vSphere, you must select an existing disk pool with free
disk space, select an existing disk group with free disk space, create a new disk group from unconfigured
disk space, or create a new disk pool from unconfigured disk space.
To create a new virtual disk or virtual disks, click the Create Virtual Disk icon and perform the following
task:
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