Storage virtualization

Virtual machine with virtual disks

A virtual machine (VM) has one or more virtual disks that are associated with it. The virtual disk is represented by using a BMC_LogicalDisk CI instance.  

As shown in the following diagram, a virtual disk represents a contiguous range of logical blocks on a storage device either on a local hard drive or a NAS/SAN infrastructure.

VirtualMachine_VirtualDisk.png

The following figure shows another simple scenario in which a virtual disk is allocated to a virtual machine (VM) and a file system is installed on it. In this figure, the virtual disk is allocated to a VM by using the BMC_LogicalDisk class. An association is created with the VM by using the SYSTEMDEVICE relationship.

VirtualDiskConnectedToAVirtualMachine.png


Virtual machine with Raw Storage Volume (LUN)

Raw storage volume (LUN) can be directly mapped to a physical or virtual server. Raw storage volume is modeled as an instance of the BMC_StorageVolume class. The following diagram shows a raw storage volume allocated to a virtual machine.

VirtualStorage_LUN.png


Related Topics

Storage-entity-models



 

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