CA ARCserve® Backup r12, CA XOsoft™ Replication r12, and
CA XOsoft™ High Availability r12 – Virtualization Support
Server virtualization is becoming widely used because of benefits such as reduced hardware and power costs, but to
realize these potential benefits it is essential that virtual machines (VMs) are protected by using specific data protection
technologies. Virtualization can also be an important recovery management and business continuity technology, if used
with appropriate management and backup tools.
CA ARCserve® Backup r12, CA XOsoft™ Replication r12, CA ARCserve Backup r12, CA XOsoft Replication r12, and
and CA XOsoft™ High Availability r12 provide several key CA XOsoft High Availability r12 provide the following
features that enable you to both protect virtualized servers virtualization support benefits:
and benefit from server virtualization in your overall
recovery management strategy: • Snapshot technologies to backup VMs, without
adversely affecting VM performance.
• Protect virtualized servers by using the Agent for
VMware or Microsoft Volume Shadow Copy Service - • Simple disaster recovery procedures to enable rapid
based snapshots for snapshot-based backups. physical-to-virtual bare-metal restores.
• Restore physical servers to VMs. • Replication and failover technologies to enable VMs to
be used as cost-effective replica and standby systems.
• Use VMs as disaster recovery hosts.
Protecting Virtual Machines
Server virtualization is becoming widely used to help organizations to reduce hardware and power costs. However, VMs
must be protected by using specific data protection technologies, such as CA ARCserve Backup r12, which uses snapshot
technologies to backup VMs, without affecting VM performance:
• For VMware VMs, CA ARCserve Backup includes a new Agent for VMware, which uses VMware Consolidated
Backup (VCB). By using the CA ARCserve® Backup r12 for Windows Agent for VMware and VCB you can offload
VM backup activity to a dedicated backup proxy system and the proxy system can access and mount VMware
snapshots for backups.
• For Microsoft Virtual Server 2005 SP2, and the new Hyper-V virtualization, CA ARCserve Backup integrates with
Microsoft Volume Shadow Copy Service (VSS) snapshots to create point-in-time copies of VMs, and then uses
VSS writers to back up these VM snapshots.
The CA solution for protecting VMware VMs consists of the following components:
• CA ARCserve Backup server
• CA ARCserve Backup Agent for VMware
• VMware Consolidated Backup
VMware Consolidated Backup
CA ARCserve Backup r12 provides backup support for VMware virtual servers, by using VCB. A storage area network
(SAN) is required to perform VCB operations; by using a SAN you reduce the overhead on your VMware ESX server and
you can significantly increase the speed and performance of backup operations. You can also back up a VM that is not
powered on. The following figure shows a typical VCB environment using CA ARCserve Backup.
With VCB, you can also use a backup proxy server to offload the backup tasks, which reduces the impact that backing up
has on the LAN that is used by your VMs. By using a VCB proxy, you transfer data to the backup server through the SAN
and the backup proxy, rather than directly across the network from the VMs.
To support VCB, you must also store your VMs on a SAN that is accessible from your CA ARCserve Backup proxy server.
Your VCB server must be running Windows 2003 Server and have access to the SAN where your VMware images are
After installing VCB you can view and backup all of your physical and virtual servers from a single CA ARCserve Backup
console. By using a single console, you can perform your entire backup and restore procedures for physical and virtual
servers from the same location. CA ARCserve Backup r12 provides a logical view of your physical and virtual servers,
which enables you to perform backup and restore operations from backup catalogs without seeing the complexity of your
You must register one CA ARCserve Backup Agent for each ESX server that is running in your VMware environment, so
you do not need to deploy a backup agent onto every virtual server. Another advantage of VCB is the additional restore
and recovery options that enable you to take incremental and differential backups of your VMware environment by using
the CA ARCserve Backup r12 console.
CA ARCserve Backup VMware Agent
The CA ARCserve Backup agent allows you to backup raw VM files including the entire VM, and to perform file-level VM
backups on supported Windows systems. Raw backups are useful if the operating system you plan to back up is not a
VMware supported Windows-based operating system.
After installing CA ARCserve Backup r12, you must populate the CA ARCserve Backup database with the details of your
VMs by using the CA ARCserve VMware Configuration Tool (available through the ca_vcbpopulatedb script, or the VCBUI
utility). You should run the CA ARCserve VMware Configuration Tool periodically so that you can browse all of your VMs in
CA ARCserve Backup Manager. You should always run this tool immediately after the following events:
• Enabling of virtual servers that were unavailable the previous time that you populated the ARCserve database.
• Adding or removing a volume from a virtual server.
• Deleting or moving a virtual server from an ESX server.
CA ARCserve Backup Integrated Anti-virus
CA ARCserve Backup includes integrated anti-virus. This enables you to configure anti-virus scanning during backups, so
that you do not need to add overhead by running virus scans on the VM, and you do not need to install and manage
separate anti-virus agents on all of your virtual servers.
Restoring Backup Data
The restore process for data contained in a VM in CA ARCserve Backup r 12 is identical to restoring from any physical
server. By using a familiar restore process, you can reduce your administration and training requirements, which saves
time and money. The following limitations apply to the restore process on a VM:
• To restore files to their original location on a VM, you must install the CA ARCserve Backup Client Agent for
• You can only restore raw, full VM backups to an alternate location.
• To restore data you must use the appropriate CA ARCserve Backup Agent, such as the Agent for Windows for file
server backups, to transfer the data across the network, by using exactly the same procedure that you would for
a normal restore.
Restoring to Bare-Metal by Using Virtual Machines
By using the Disaster Recovery tools in CA ARCserve Backup and the data replication features in CA XOsoft Replication, it
is easy to restore physical servers to a bare-metal virtual server, which has no operating system or application software
and is restored to a previously backed up state. Using physical-to-virtual (P2V) restores to a bare-metal virtual server
reduces both downtime and disaster recovery costs, and gives you time to fix problems on the physical primary server.
If you have a backup of your physical servers, or a backup of raw VMs, you can restore a working server quickly and
efficiently by using disaster recovery restore options to restore a backup to a virtual server.
To restore to a bare-metal server you must have created a backup by using the disaster recovery tools in CA ARCserve
Backup r12. This process creates a bootable CD/DVD that you can use to recover from server failure. By enabling you to
add drivers to your bootable image CD/DVD, CA ARCserve Backup r12 simplifies the recovery process and provides
additional flexibility for server recovery. You add drivers through the GUI when creating a bootable disaster recovery
CD/DVD, which allows you to easily select drivers and add them to your recovery CD/DVD. By adding network drivers,
you can quickly restore data from a file share or Network Attached Storage device, which can decrease the time taken to
recover a server.
CA ARCserve Backup r12 provides the following data restoration features:
• Restoring data from full backups
• Restoring data from incremental backups
• Restoring data from differential backup
• Recovering data using password encrypted backup files
• Restoring data from NAS or file shares
• Adding additional drivers to images
CA ARCserve Backup r12 supports the following Windows versions:
• Windows 2000
• Windows XP
• Windows 2003
• Windows 2008
• x86, x64 and IA64 architectures
By restoring to a VM, you can circumvent any potential delays in restoring data that are caused by waiting for delivery of
replacement hardware for failed servers.
By using virtual servers to perform disaster recovery, you can also practice your disaster recovery techniques and
minimize the costs that are associated with additional disaster recovery hardware to replicate every physical server in
your organization. This recovery method enables you to restore data to any hardware that is available and has sufficient
Virtual Machines as Disaster Recovery Hosts
Virtualization can also be an important recovery management and business continuity technology, if used with appropriate
management and backup tools. You can use CA XOsoft Replication and CA XOsoft High Availability with virtual servers to