Creating a virtual disk–Select MDisk group

You can select attributes for either striped or sequential virtual disks (VDisks) from the Select Attributes for VDisks panel in the Create Virtual Disk wizard in the SAN Volume Controller Console. For striped VDisks, data is striped at the extent level. One extent is allocated from each managed disks (MDisks) in the selected MDisk group. Sequential VDisks can have data stored sequentially on a single MDisk.

Introduction

The Select Attributes for VDisks panel in the Create Virtual Disk wizard is dynamic and only displays the options that are available when you have selected different attributes.

Fields

Sequential VDisk
When you have selected to create a sequential VDisk, you can update the following fields for sequential VDisks:
Managed Disk Group
Select the MDisk group for the VDisk.
Use a single managed disk
Select this option to create a VDisk from a single MDisk.
Choose 1 managed disks
Select the MDisks to use for the VDisk.
VDisk Capacity
Displays the total capacity of the VDisk that is presented to hosts.
Real size to initially allocate
Select the size to allocate to the space-efficient VDisk. You can either select a percentage for the size or specify the size allocation in megabytes (MB).
Note: This field is only available if you have selected to create a space-efficient VDisk.
Striped VDisks
You can update the following fields for striped VDisks:
Managed Disk Group
Select the MDisk group for the striped VDisk.
VDisk Capacity
Displays the capacity for the VDisks. The following units are possible:
  • B
  • KB
  • MB
  • GB
  • TB
  • PB
Real size to initially allocate
Select the size to allocate to the space-efficient VDisk. You can either select a percentage for the size or specify the size allocation in megabytes (MB). Absolute values are converted and displayed as a percentage.
Note: This field is only available if you have selected to create a space-efficient VDisk.

Actions

The following actions are available:

Back
Click this button to return to the previous wizard panel.
Next
Click this button after you have completed this panel.
Cancel
Click this button to exit this wizard without creating the VDisk.
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