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- In Avamar 6.1 there needs to be one proxy server for backup and recovery
- If single-file Windows recovery is desired, a second proxy server is needed
Integration of EMC Avamar with Vblock systems
Figure 1, in the “Architecture overview” section, depicts the high-level architecture of the Vblock
solution with Avamar. See the “References” section to find information on configuration and setup.
Avamar backup-and-recovery software provides integrated source/global data deduplication. An
Avamar agent on the client system deduplicates the data and then backs it up to an Avamar server,
such as an Avamar data store. Unlike traditional backup software, Avamar deduplicates backup data
before it is transferred across the network and stored to disk. And, Avamar deduplicates data globally
by storing a single instance of each subfile, variable-length data string, or data segment that it
identifies as unique across all of its protected sites and servers. Thus, Avamar enables rapid, daily full
backups even across congested or slow WAN/LAN links and virtual infrastructures.
Avamar is used in this solution not only to store the backup data, but also because its software
provides integration with vCenter to manage, monitor, and configure the backup of the virtual
infrastructure from a single administrative interface.
Avamar image proxy machines use the VMware VADP, and in particular the SCSI hot-add capability,
to mount the VM files that require protection. The administrator has the flexibility to deploy multiple
proxies based on the requirements of the operating system environment. Multiple proxy deployments
allow simultaneous backups and recoveries. During the initial deployment, an administrator assigns a
separate proxy server to protect either Windows or Linux VMs.
Recovery
Avamar file-level recovery proxy
An Avamar file-level recovery proxy is a VM that allows a file, or files, to be recovered into it from a full
image backup. Avamar file-level recovery proxies require a VM that is running Windows Server 2003
SP2, and EMC recommends one CPU and 1 GB of memory for this VM. This VM leverages the AvFS
to create a browseable view within a VM’s VMDK file for easy, selectable recovery.
Recovery options with Avamar include guest-level recovery and image-level recovery.
Guest-level recovery
The process of guest-level recovery is the same in this solution for VMs as it is for traditional recovery
from a backup application. The administrator has the ability to recover directories, files, and
applications in the Avamar Administrator GUI.
Image-level recovery
There are three options for recovering data from an image-based backup:
Recover to original machine
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