Dell Storage Manager 2020 R1 Administrator's Guide

Create an RDM Volume

You can create a volume, map it to a VMware virtual machine, and create a raw device mapping to the virtual machine in one operation.

1. Click the Servers view.
2. Click the plus sign (+) next to the vSphere host, on which the virtual machine is located, to display the Virtual Machines node.
3. Click the plus sign (+) next to the Virtual Machines node to display the virtual machine.
4. Select the virtual machine on which to create the datastore.
5. Click Create RDM Volume.
6. Enter a name for the volume in the Volume Name field.
7. Select the unit of storage from the drop-down menu and enter the size of the volume in the Total Space field.
8. Select the Storage Center on which to create the volume.
   • To manually choose a Storage Center, select it from the Storage Center drop‑down menu.
   • To automatically choose a Storage Center based on capacity and performance, click Recommend a Storage Center. The recommended Storage Center appears in the Storage Center drop-down menu.
9. To configure advanced volume mapping options, click Advanced Mapping.
10. To configure the volume creation settings, click Volume Settings. In the Volume Settings dialog box appears, modify the options as needed, then click OK.
    • To specify the name of the volume, type a name in the Name field.
    • To specify the folder in which the volume will be created, select a folder from the Volume Folder area.
    • To add notes to the volume, type notes in the Notes field.
    • To schedule snapshot creation and expiration for the volume, apply one or more Snapshot Profiles by clicking Change across from Snapshot Profiles.
    • If Chargeback is enabled, select the department to charge for storage costs associated with the volume by clicking Change across from Chargeback Department.
    • To enable caching for reads on the volume, select the Enabled check box across from Read Cache.
    • To enable caching for writes on the volume, select the Enabled check box across from Write Cache.
    • To enable compression on eligible data in the volume, select the Enable check box across from Compression.
    • To use specific tiers and RAID levels for volume data, select the appropriate Storage Profile from the Storage Profile drop-down menu. Using the Recommended Storage Profile allows the volume to take full advantage of data progression.
11. If more than one Storage Type is defined on the Storage Center, select the Storage Type to provide storage from the Storage Type drop-down menu.
12. Click OK.