About virtual copy management, Virtual copy data consistency, Virtual copy policy – HP 3PAR Recovery Manager Software User Manual

Page 9: Virtual copy data consistency virtual copy policy

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Table 2 RMH PowerShell Snap-in Cmdlets (continued)

Description

Command

Removes HP 3PAR StoreServ credentials associated with
a RMH user

Remove-StoreServ

Removes a Virtual Copy

Remove-vCopy

Initiates a full restore or recovery of virtual machines

Restore-vCopyVm

Shows connection information for current login RMH user
name

Show-Connection

Unmounts currently mounted Virtual Copy volume(s) for the
specified Virtual Copy and virtual machine name

Unmount-vCopy

Updates Microsoft Hyper-V credentials already present in
RMH database for user

Update-HyperV

Updates HP 3PAR StoreServ credentials already present
in RMH database for user

Update-StoreServ

For more information about using RMH PowerShell Cmdlets, see

“Using PowerShell Snap-in

Command Line Interface” (page 44)

.

About Virtual Copy Management

HP 3PAR Recovery Manager for Microsoft Hyper-V features an essential Virtual Copy management
tool with enhanced recovery commands that allows you to create and restore application consistent
Virtual Copies of running Hyper-V Virtual Machines (VMs). When creating a VM Virtual Copy,
Recovery Manager for Microsoft Hyper-V identifies all the underlying HP 3PAR volumes and creates
Virtual Copies simultaneously for all volumes to ensure consistency. Recovery Manager for Microsoft
Hyper-V manages the set of Virtual Copies as a single entity.

NOTE:

HP 3PAR Recovery Manager for Microsoft Hyper-V requires a license. In addition, specific

licenses are required for HP 3PAR Virtual Copy and HP 3PAR Virtual Lock when performing Virtual
Copy operations and setting volume retention policies.

Virtual Copy Data Consistency

You can create application consistent Virtual Copies of Hyper-V Virtual Machines with Microsoft
VSS technology and HP 3PAR VSS Provider.

When a VSS aware VM Virtual Copy is created, the VM is put into a saved state during the Virtual
Copy creation operation. Simultaneously, both VSS and HP 3PAR VSS Provider automatically
creates HP 3PAR Virtual Copies of the underlying LUNs and the VM returns to the previous state
during the operation. Recovery Manager for Microsoft Hyper-V then saves any details of the Virtual
Copy, along with VSS backup document, for browsing and restoring purposes.

Application consistency is provided for HP 3PAR snapshots of Virtual Machines for data compatibility
with supported applications. Recovery Manager for Microsoft Hyper-V supports VSS Child VM
Snapshots and provides crash consistent backups through using saved state method.

NOTE:

The current version of HP 3PAR Recovery Manager for Microsoft Hyper-V supports system

crash, VM and application consistent Virtual Copies. Application consistency is provided for HP
3PAR snapshots of Virtual Machines for data compatibility with supported applications. Recovery
Manager for Microsoft Hyper-V supports only VSS Child VM Snapshots.

Virtual Copy Policy

Recovery Manager for Microsoft Hyper-V provides the ability to create Virtual Copy policies for
VMs. Only a single policy is permitted for every Virtual Machine and the policies exist independently
of the virtual disks the VM is using.

About Virtual Copy Management

9

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