EMC D DATA PROT TECTIO

DESIGN AND IMPLEMENTTATION GUIDE
E
EMC DATA
D
PROTTECTIO
ON OP
PTION
NS
FOR VSPEX
V
X PRIV
VATE CLOUD
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EMC VSPEX
V
Decemberr 2014
Copyright © 2013-2014 EMC Corporation. All rights reserved. Published in USA.
Published December, 2014
EMC believes the information in this publication is accurate as of its publication date. The information is subject to change
without notice.
The information in this publication is provided as is. EMC Corporation makes no representations or warranties of any kind with
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EMC Corporation
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1-508-435-1000 In North America 1-866-464-7381
www.EMC.com
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EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
CONTENTS
Chapter 1
Introduction
5
Purpose of this guide...................................................................................... 6
Business value................................................................................................6
Scope..............................................................................................................7
Essential reading.............................................................................................7
Chapter 2
Solution Overview and Sizing
9
Solution components and terminology.......................................................... 10
Solution architecture.....................................................................................11
Private Cloud overview.................................................................................. 13
EMC Data Protection solutions overview........................................................ 13
EMC Avamar deduplication backup software and system................. 14
EMC Data Domain deduplication storage system..............................14
vSphere Data Protection Advanced.................................................. 15
EMC Data Protection solution sizing................................................. 16
Chapter 3
Private Cloud Backup Considerations for VMware vSphere
17
Avamar backup strategies overview...............................................................18
Avamar with Data Domain backup strategies overview.................................. 18
VDP Advanced backup strategies overview....................................................18
Configuring VMware backups by using VDP Advanced......................19
Chapter 4
Solution Verification Methodologies for VMware vSphere
21
Data Protection verification methodology...................................................... 22
Recovery steps for Avamar............................................................................ 22
Recovery steps for VDP Advanced..................................................................23
Chapter 5
Private Cloud Backup Considerations for Microsoft Hyper-V
25
Avamar backup strategies overview...............................................................26
Avamar with Data Domain backup strategies overview.................................. 26
Chapter 6
Solution Verification Methodologies for Microsoft Hyper-V
27
Data Protection verification methodology...................................................... 28
Recovery Steps for Avamar............................................................................ 28
Chapter 7
Reference Documentation
29
Documentation............................................................................................. 30
EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
3
CONTENTS
4
EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
CHAPTER 1
Introduction
l
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Purpose of this guide.............................................................................................. 6
Business value........................................................................................................6
Scope......................................................................................................................7
Essential reading.....................................................................................................7
Introduction
5
Introduction
Purpose of this guide
®
This Solution Guide describes how to design, implement, and size EMC Data Protection
®
solutions for VSPEX Private Cloud Proven Infrastructures.
EMC VSPEX for Private Cloud solution:
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Provides customers with a validated solution capable of hosting a virtualization
solution at a consistent performance level.
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Enables customers to quickly and consistently deploy and protect a Private Cloud on
a VSPEX Proven Infrastructure.
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Runs on VMware vSphere or Microsoft Hyper-V virtualization software.
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Leverages the highly available EMC VNX family and software-defined ScaleIO
solutions, which powers the storage layer.
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Leverages EMC Data Protection products, including: EMC Avamar , EMC Data
®
Domain , and VMware vSphere Data Protection Advanced (VDP Advanced).
®
®
Business value
Private Cloud continues the server virtualization consolidation efforts started over a
decade ago. IT administrators who support server virtualization efforts face challenges in
maintaining the highest possible levels of performance and application efficiency. At the
same time, most administrators struggle to keep up with relentless file and application
data growth while working to overcome diminishing budgets. Most IT departments
experience major challenges when administering, auditing, protecting, and managing
Private Cloud environments for a modern, geographically diverse work force.
Many businesses try to address these challenges by adding physical servers and
inefficient direct attached storage, which further compounds the problem. Additionally,
as the virtual environment grows, server consolidation can result in overlapping backup
windows and a heavy impact on hardware resources, which can bring backups to a crawl.
This can stall virtualization projects or put data at risk because data is not properly
backed up, which makes recovery uncertain.
EMC has joined forces with industry leading providers of IT infrastructure to create a
complete virtualization solution that accelerates the deployment of your Private Cloud.
VSPEX enables customers to accelerate their IT transformation with faster deployment,
more simplicity, greater choice, higher efficiency, and lower risk. Validation by EMC
ensures predictable performance and enables customers to select technology that
leverages existing IT infrastructure solutions, while eliminating planning and
configuration burdens. VSPEX provides infrastructure solutions for customers who are
looking to simplify their environment while at the same time gaining flexibility at each
layer of the stack.
EMC Data Protection solutions - EMC Avamar, EMC Data Domain, and VMware vSphere
Data Protection Advanced (VDP Advanced) - deliver the protection and confidence
needed to accelerate your VSPEX deployment.
EMC recommends VDP Advanced for up to 125 virtual machine VMware-based VSPEX
deployments. Powered by Avamar technology, VDP Advanced delivers fast and efficient
image-level and file-level backups, recovery, and replication. VDP Advanced now sends
backup data to EMC Data Domain systems, for additional scalability and reliability.
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EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
Introduction
Figure 1 EMC Data Protection solutions
Scope
This Design and Implementation Guide describes how to design, implement, and size
EMC Data Protection solutions for VSPEX Private Cloud environments by using the
following configurations.
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VDP Advanced and Data Domain DD2200 systems to protect Private Clouds that run
on VMware vSphere (up to 125 virtual machines). You can also use VSPEX for
Virtualized Microsoft Applications to protect Microsoft applications.
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EMC Avamar to protect Private Clouds that run on VMware vSphere and Microsoft
Hyper-V.
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EMC Avamar and EMC Data Domain systems to protect Private Clouds that run on
VMware vSphere with greater than 125 VMs.
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EMC Avamar and EMC Data Domain to protect Private Clouds that run on Microsoft
Hyper-V.
Essential reading
EMC recommends that you read the following documents, available on the EMC.com
website.
Solution overviews
Review the following VSPEX Solution overview documents:
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Solutions Overview: EMC VSPEX Private Cloud with ScaleIO
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Solutions Overview: EMC VSPEX Private Cloud
VSPEX Proven Infrastructure
Review the following VSPEX Proven Infrastructure documents:
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EMC VSPEX Private Cloud - Microsoft Windows Server 2012 with Hyper-V for up to 125
Virtual Machines
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EMC VSPEX Private Cloud - Microsoft Windows Server 2012 with Hyper-V for up to
1,000 Virtual Machines
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EMC VSPEX Private Cloud VMware vSphere 5.5 for up to 125 Virtual Machines
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EMC VSPEX Private Cloud: VMware vSphere 5.5 for up to 1,000 Virtual Machines
Scope
7
Introduction
8
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Proven Infrastructure Guide: EMC VSPEX Private Cloud: VMware vSphere and EMC
ScaleIO
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Proven Infrastructure Guide: EMC VSPEX Private Cloud: Microsoft Hyper-V and EMC
ScaleIO
EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
CHAPTER 2
Solution Overview and Sizing
This chapter provides an overview of VSPEX Proven Infrastructure for Virtualized Private
Cloud, the EMC Data Protection products used in this solution, and critical guidance
about backup and recovery solution sizing.
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Solution components and terminology.................................................................. 10
Solution architecture.............................................................................................11
Private Cloud overview.......................................................................................... 13
EMC Data Protection solutions overview................................................................ 13
Solution Overview and Sizing
9
Solution Overview and Sizing
Solution components and terminology
This section provides a summary of components and terminology used in a vSphere and
Hyper-V environment.
VMware vSphere components and terminology
This section summarizes the components and terminology used in a VMware vSphere
environment.
Table 1 VMware vSphere terminology
10
Component
Description
Host OS
The physical host where you install the VMware vSphere software. VMware
vSphere enables the Host OS or hypervisor to create, manage, and allocate
hardware resources to Virtual Machines.
Virtual Machine
Virtual hardware that supports a self-contained implementation of an
operating system (Guest OS) and application software on a Host OS. Many
virtual machines can exist independently on one Host OS.
vApp ( virtual
Application)
Collection of preconfigured virtual machines that enable you to combine
applications and operating systems into a single Virtual LAN (VLAN). For
example, a vApp can contain an Active Directory host, a SharePoint farm, a
SQL Server host, and an appropriately sized virtual EMC Backup and Recovery
appliance. VMware vSphere allows you to configure the start order of each
virtual machine in a vApp. When you back up a vApp, the backup application
will back up all virtual machines within the vApp.
vCenter
Server that provides central management for multiple vSphere servers, virtual
machines, and underlying virtualization technologies, such as change block
tracking (CBT) and Proxy hosts. You can create the vCenter server on a
physical or virtual machine.
Datastore
Logical containers, analogous to file systems that vSphere manages. The
datastore stores the files that make up each virtual machine.
Proxy host
Avamar virtual machine that backup operations use to handle backup
processing overhead and offload resource usage from the virtual machine
targets.
Image-based
backup
A backup operation that uses snapshot technology to create a point-in-time
copy for a backup, which contains a complete copy of the Guest OS,
application, and data files for a virtual machine. You can use an Image-based
backup to perform disaster recoveries of a virtual machine.
File level recovery
(FLR)
Ability to recover specific files and folders from an Image-based backup.
Guest-based
backup
A traditional backup of the virtual machine that uses a backup application,
which you install on the virtual machine to back up the Guest OS,
application, and data files.
Change Block
Tracking (CBT)
A method to identify disk sectors that have been altered between two periods
of time. CBT shortens backup windows by only presenting new data blocks to
Avamar/VDP. Avamar and VDP identify and only back up segments that have
changed within the new blocks.
EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
Solution Overview and Sizing
Microsoft Hyper-V components and terminology
The section summarizes the components and terminology used in a Microsoft Hyper-V
environment.
Table 2 Hyper-V terminology
Component
Description
VHDs
Virtual Hard Disks or virtual machines.
Cluster Shared Volumes
(CSV)
A shared disk that each node in the cluster can access for read and
write operations.
Parent Partition
Runs the hypervisor layer. Responsible for the creation and
management of child partitions.
Child Partition
Runs an isolated OS with allocated CPU and memory resources.
Proxy architecture
Hyper-V does not use explicitly created VHD proxies. Each VHD
dedicates resources for proxy usage.
Solution architecture
The following figures illustrate the architecture that characterize a VSPEX Private Cloud.
Figure 2 Solution architecture that includes VSPEX Private Cloud and ScaleIO
Solution architecture
11
Solution Overview and Sizing
This example includes the following components:
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Many VMs reside on a VMware vSphere or Microsoft Hyper-V cluster.
n
For VMware vSphere, many vApps and folders (that contain a number of VMs) may
also reside on a cluster.
n
For Microsoft, the Hyper-V hypervisor has one parent partition and a number of
children partitions that reside on a cluster.
l
ScaleIO, in a configuration that has been validated as part of the VSPEX Proven
Infrastructure solution, provides the back-end storage functionality.
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Datastores that contain the boot code data for the image:
n
VMware vSphere stores the data in a virtual machine data file (VMDK) format.
Avamar can recover the entire VM or perform a FLR.
n
Microsoft Hyper-V stores the data in a VHD format. Avamar can recover the entire
VHD or perform an FLR.
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iSCSI native disks that store the vmdk and vhd files in RDM format.
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EMC Data Protection systems that have been validated as part of a VSPEX Proven
Infrastructure and provides the backup and recovery functionality.
Figure 3 Solution architecture that includes VSPEX Private Cloud and VNX
This example includes the following components:
l
l
12
Many VMs reside on a VMware vSphere or Microsoft Hyper-V cluster.
n
For VMware vSphere, many vApps and folders (that contain a number of VMs) may
also reside on a cluster.
n
For Microsoft, the Hyper-V hypervisor has one parent partition and a number of
children partitions that reside on a cluster.
An EMC VNX series that has been validated as part of the VSPEX Proven Infrastructure
solution provides the back-end storage functionality.
EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
Solution Overview and Sizing
l
Datastores that contain the boot code data for the image:
n
VMware vSphere stores the data in a virtual machine data file (VMDK) format.
Avamar can recover the entire VM or perform an FLR.
n
Microsoft Hyper-V stores the data in a VHD format. Avamar can recover the entire
VHD or perform an FLR.
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iSCSI native disks that store the vmdk and vhd files in RDM format.
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EMC Data Protection systems that have been validated as part of a VSPEX Proven
Infrastructure and provides the backup and recovery functionality.
Essential reading provides more information.
Private Cloud overview
Private Cloud presents a new, unified approach to enabling end users to compute and
collaborate in a virtualized environment by using VMs individually or within a vApp. A
typical vApp might contain an Active Directory VM, a VM that contains a Microsoft or
Oracle application and a virtualized EMC EMC Data Protection grid or appliance. When
you add VMs to a vApp you can configure Avamar to back up the VMs within the vApp as
a single entity.
With a Private Cloud configuration, you can:
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Implement customized VMware VM, vApps, or Microsoft VHDs that meet the needs of
an enterprise to consolidate and accelerate the environment by using virtualization.
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Enable IT staff and the enterprise to offer a full catalog of applications and services
that the end user requires.
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Protect the Private Cloud environment by leveraging the backup and recovery
resources assigned to the environment.
A Private Cloud Organization includes several critical components and concepts:
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Virtual machine/virtual hard disk.
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Proxy host for the virtual machine. A Private Cloud uses a Proxy host to offload the
backup resource burden from the VM/VHD host. A Private Cloud selects a Proxy host
from a pool of Proxy hosts.
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Changed Block Tracking (CBT) to provide the means to back up only the blocks of
data that have changed within that VM. The Microsoft VSS API uses a similar
mechanism. CBT reduces the backup window drastically.
These components are the basis for data protection functionality and scalability in either
a VMware vSphere or Microsoft Hyper-V virtual environment.
EMC Data Protection solutions overview
This section provides data protection options, recommended EMC Data Protection
configurations and guidance for a VSPEX Private Clouds solution.
Optimized for virtualized application environments, EMC Data Protection solutions:
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Deliver the confidence and efficiency to accelerate a VSPEX Private Cloud Deployment
deployment.
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Use software that is proven to reduce backup times by 90% and improve recovery
times by 30x for worry-free protection.
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Use EMC Protection Storage to add another layer of reliability by providing end-to-end
verification and self-healing, which ensures successful recoveries.
Private Cloud overview
13
Solution Overview and Sizing
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Deliver big savings. With industry-leading deduplication, you can reduce:
n
Backup storage by 10-30x.
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Backup management time by 81%.
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WAN bandwidth by 99% for efficient DR.
Deliver a payback period as low as 7 months. With EMC Data Protection solutions,
you can simply and efficiently scale backup and recovery configurations as your
environment grows.
EMC Avamar deduplication backup software and system
EMC Avamar provides fast, efficient backup and recovery through a complete software
and hardware solution. Equipped with integrated variable-length deduplication
technology, Avamar facilitates fast, daily full backups for physical environments, remote
offices, enterprise applications, network-attached storage (NAS) servers, desktops/
laptops, and virtualized environments.
EMC Avamar Virtual Edition (AVE) is a single-node server that runs as a VM in a VMware
ESX/ESXi 4.1 or ESXi 5.0/5.1/5.5 environment.
Note
VMware ESX/ESXi 5.5 requires AVE 7.0 SP1 or later.
AVE provides the following features:
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Integrates the latest version of the Avamar software with SUSE Linux.
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Runs autonomously as a target for all Avamar client backups and performs replication
to a physical Avamar system or another AVE.
The Avamar plug-in supports backup and recovery operations of single VMs, vApps, and
VHDs. You can backup and recover a single VM or multiple VMs that form a virtual
application hosting instance.
While FLR is the most frequent use case and most granular form of recovery, you can
recover the entire VM to address a registry corruption or to recover an inaccessible VM.
The Backup and VMware administrator can include one or both recovery types in the data
protection strategy.
EMC Data Domain deduplication storage system
EMC Data Domain deduplication storage systems continue to revolutionize disk backup,
archiving, and disaster recovery with high-speed, inline deduplication for backup and
archive workloads.
EMC recommends that you use Data Domain systems as a backup target for Avamar in
the following configurations:
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VSPEX Private Cloud solutions with VMware vSphere.
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VSPEX Private Cloud solutions For Microsoft Hyper-V, for 300 VMs or greater.
You can use Data Domain devices as the backup target for Avamar. Install the Avamar
client and plug-ins in the same way as when you use an Avamar device as the backup
target. If you use a Data Domain system as the backup target for Avamar, then after the
Data Domain system has been discovered within the Avamar Manager software
application, specify the backup target by selecting the appropriate box in the Avamar
data set definition interface.
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EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
Solution Overview and Sizing
vSphere Data Protection Advanced
For VMware-based VSPEX solutions that run 125 VMs or less, customers can choose VDP
Advanced.
VDP Advanced enables you to use up to 10 VDP Advanced systems in each vCenter
instance. A VDP Advanced virtual appliance:
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Provides up to 8 TB of capacity.
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Supports up to 400 concurrent VM backups.
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Operates independently from other VDP Advanced virtual appliances within the
vCenter server instance. Individual deduplication of each VM occurs in a VDP
Advanced virtual appliance. To take advantage of global deduplication, implement
Data Domain Protection Storage Architecture.
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Provides high efficiency. VDP Advanced uses an industry-leading and patented
variable length deduplication algorithm that minimizes storage and bandwidth
consumption. The use of CBT reduces backup and recovery times, which minimizes
the cost of application downtime.
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Provides resiliency. VDP Advanced provides agentless, image-level backups to disk
and guest-level, application-consistent protection for Microsoft Exchange (including
granular Exchange mailbox recovery), SQL Server, and SharePoint. Network efficient,
encrypted backup data replication enables you to back up data offsite, which ensures
business continuity and compliance.
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Provides simplicity. VDP Advanced provides full integration with vCenter Server and
end-to-end management by using the vSphere Web Client provides:
n
Familiar user interface, which makes the product easy to use and manage.
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Flexible and simplified schedules, which reduce operational overhead for vSphere
administrators.
With VDP Advanced, you will benefit from fast, efficient image-level and file-level backup,
recovery, and replication combined with reliable, scalable, and efficient storage
protection.
Built-in data replication
The vSphere Replication feature provides an offline copy of a VM by copying changes in
the VMDK for a running VM to a VMDK file at a secondary location. Each copy operation
creates a replica of the VM at the secondary location and vSphere Replication supports
up to 24 concurrent point-in-time replicas. User-defined Recovery Point Objectives (RPOs)
determine the frequency of the replication operation. You can set RPOs to occur at
intervals between 15 minutes and 24 hours.
VDP Advanced provides a built-in replication solution that supports the replication of
deduplicated, encrypted backup data to a secondary location. The replication solution in
VDP Advanced provides longer retention periods with less aggressive RPOs than vSphere
Replication. When you use VDP Advanced replication, you can store replicas at the
secondary location for periods in the range of 30 to 60 days and use RPO intervals of 24
hours or higher.
VDP Advanced replication supports the following destination types:
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VDP Advanced
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EMC Avamar
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EMC Avamar with Data Domain
vSphere Data Protection Advanced
15
Solution Overview and Sizing
EMC Data Protection solution sizing
The following table represents possible backup and recovery options based on
assumptions contained within the Proven Infrastructure Guides for VSPEX Private Clouds .
Table 3 Recommended configurations for EMC Data Protection solutions
Up to
125 VMs
VSPEX Private Cloud
with VMware vSphere
200 VMs
300 VMs
VDP Advanced
Data Domain
DD2200
VSPEX Private Cloud Avamar Business
with Microsoft Hyper-V Edition (M1200)
600 VMs
1000 VMs
Avamar 7
Data Domain DD2500
Data Domain DD4200
Avamar 7
Data Domain DD2500
Data Domain DD4200
Note
Sizing can vary significantly depending on initial and day-over-day commonalities,
application change rates, and the retention periods that the business requires.
For example, based on the assumptions within the Proven Infrastructure Guides for VSPEX
Private Clouds , a drastic change in the retention period alone can result in the need to
use a higher capacity Data Domain appliance:
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If a configuration uses a retention period of 30 days for 100 VMs, then use a Data
Domain DD2200.
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If a configuration uses a retention period of 3 years for 1000 VMs, then use a Data
Domain DD4200.
Note
You cannot upgrade a VDP virtual appliance. Ensure that you carefully consider sizing
requirements for this solution.
The remainder of this document focuses on the design and implementation of the various
backup and recovery options.
Note
Always use the VSPEX sizing tool to provide formal sizing metrics for any environment.
16
EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
CHAPTER 3
Private Cloud Backup Considerations for VMware
vSphere
This chapter provides an overview of backup strategies when you use Avamar, Avamar
with Data Domain, or VDP Advanced with Data Domain to back up a VSPEX Private Cloud
environment with VMware vSphere.
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Avamar backup strategies overview.......................................................................18
Avamar with Data Domain backup strategies overview.......................................... 18
VDP Advanced backup strategies overview............................................................18
Private Cloud Backup Considerations for VMware vSphere
17
Private Cloud Backup Considerations for VMware vSphere
Avamar backup strategies overview
Avamar 7.0 provides a vSPhere Web plug-in to enable data protection for the VMware
administrator.
The backup strategy for a VMware vSphere environment leverages the following Avamar
features:
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Ability to select a configured Proxy host from a pool of available Proxy hosts.
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Ability to backup data at the virtual machine, vApp, or the Folder level (several virtual
machines within a folder).
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Ability to use Policies, including datasets.
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Ability to use certified VMware Ready functionality for image-based recoveries and
FLR by using change block tracking API calls. VMware Ready features and
functionality pass rigorous tests before becoming certified.
Multi vCenter environment
The typical enterprise customer may deploy multiple vCenter servers. Avamar supports up
to five vCenter servers in this topology.
Note
Avamar does not support the vSphere web client in a multi-vCenter environment.
Avamar with Data Domain backup strategies overview
Avamar 6.0 and later versions support virtual machine backups to a Data Domain system.
Using Avamar with Data Domain provides the following advantages:
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You can deploy more relatively smaller Avamar grids that integrate into a larger Data
Domain system that holds most or all virtual machines.
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You can size the Avamar with Data Domain solution to take advantage of Data
Domain performance and scale.
VDP Advanced backup strategies overview
Use the VMware vSphere Web Client interface to select, schedule, configure, and manage
virtual machine backups and recoveries, including FLR. FLR allows local administrators to
browse and mount backups for the local machine, then restore individual files.
During a backup, VDP Advanced creates a quiesced snapshot of the virtual machine, and
then automatically deduplicates the backup data.
Before you use VDP Advanced, you must install and configure the VDP Appliance. The
chapter Installing and Configuring vSphere Data Protection in the vSphere Data Protection
Administration Guide provides more information.
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EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
Private Cloud Backup Considerations for VMware vSphere
Configuring VMware backups by using VDP Advanced
Use the vSphere web client to configure VMware backups, the vSphere client application
does not support VDP.
Procedure
1. Use a web browser to connect to the VDP vSphere Web Client.
https://IP_address_vCenter_Server:9443/vsphere-client/
2. In the Credentials window, specify the vCenter user name and password that provides
access to the VDP appliance.
3. In the Welcome to vSphere Data Protection window, select VDP, and then click
Connect.
The VDP window appears as shown in the following figure.
Figure 4 VDP vSphere Web Client
4. On the Backup tab, select Backup Job Actions, and then click New to launch the
Backup Job Wizard.
The Virtual Machines page displays an inventory tree that contains all the objects and
VMs that the vCenter Server manages. Click each rotating triangle to display the tree
contents of the object.
5. Enable the check boxes next to the items you want to add to the backup job and then
click Next.
6. On the Schedule, Retention Policy and Name windows, select the parameter that you
require for the backup.
7. On the Ready to Complete window, review the summary information for the backup
job and then click Finish.
An information dialog box appears to confirm that the wizard created the backup job
successfully.
8. Click OK.
The newly created backup job appears on the Backup tab.
Configuring VMware backups by using VDP Advanced
19
Private Cloud Backup Considerations for VMware vSphere
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EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
CHAPTER 4
Solution Verification Methodologies for VMware
vSphere
This chapter provides guidance and the steps required to validate the backup
configuration by performing recovery operations that use the EMC Avamar, Avamar with
Data Domain, and VDP Advanced in a VMware vSphere environment.
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Data Protection verification methodology.............................................................. 22
Recovery steps for Avamar.....................................................................................22
Recovery steps for VDP Advanced..........................................................................23
Solution Verification Methodologies for VMware vSphere
21
Solution Verification Methodologies for VMware vSphere
Data Protection verification methodology
Verification of the Private Cloud backup configuration and the ability to restore data is
fairly straightforward for VMware vSphere. The highest level of recovery enables you to
recover an entire virtual machine or vApp.
A user can recover data to the location of the data at the time of backup (in-place), or if
the user has the required role-based access, to an alternate location (redirected restore).
The severity of the disaster to the image determines the type of recovery that you will use.
Use an image-level recovery when:
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Registry corruption occurs on the image that you cannot repair.
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A virus has attacked the image and you cannot access the image.
However, depending on the backup and recovery strategy, you can use a guest-based
recovery to:
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Recover data files, database files, and transaction logs. This includes applicationconsistent images for Exchange, SQL Server, and SharePoint.
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Perform file level recoveries from images.
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Perform an in-place or a redirected restore.
Recovery steps for Avamar
The following core Avamar VMware vSphere documents, available from the EMC Online
Support website, outline the specific steps for various recoveries.
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Avamar 7.0 for VMware User Guide
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EMC Avamar 7.0 Operational Best Practices
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EMC Avamar 7.0 Administration Guide
The following figure provides an example of the recovery options available in the Avamar
client for an in-place recovery.
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EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
Solution Verification Methodologies for VMware vSphere
Figure 5 Restore options available in the Avamar client when you select "Restore everything to its
original location"
Recovery steps for VDP Advanced
With VDP Advanced, an administrator can create an Automatic Backup Verification (ABV)
job that performs an actual restore to verify backup data integrity. ABV offers the
administrator with the highest level of recovery confidence for virtual machines and
applications protected by VDP Advanced.
ABV has the following characteristics:
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Recovers backup data to a temporary virtual machine, also called a Validating Virtual
Machine by using following naming convention: VDP_VALIDATING_vm-name -unique
number.
Recovers backups without creating a network conflict. Conflicts do not occur because
ABV disables the NIC during the verification operation.
Recovery steps for VDP Advanced
23
Solution Verification Methodologies for VMware vSphere
Note
You cannot perform a ping test on the temporary virtual machine.
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Removes and deletes the Validating Virtual Machine when the backup ABV job
completes.
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Verifies only the last successful full image backup for any virtual machine. The Recent
Task pane and Event log provides a report of verified backups.
The vSphere Data Protection Administration Guide provides the detailed ABV steps and
prerequisite information.
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EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
CHAPTER 5
Private Cloud Backup Considerations for
Microsoft Hyper-V
This chapter provides an overview of backup strategies when you use Avamar or Avamar
with Data Domain to back up a VSPEX Private Cloud environment with Microsoft Hyper-V.
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Avamar backup strategies overview.......................................................................26
Avamar with Data Domain backup strategies overview.......................................... 26
Private Cloud Backup Considerations for Microsoft Hyper-V
25
Private Cloud Backup Considerations for Microsoft Hyper-V
Avamar backup strategies overview
The backup strategy for a Hyper-V environment leverages the following Avamar features.
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Ability to back up at the VHD or CSV (Image) level.
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Ability to use proxies to offload backup overhead from production VMs.
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Ability to use policies, including Avamar datasets.
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Ability to use the Hyper-V VSS API to quiesce disk writes, ensuring application
consistency.
The following figure provides an example of the Avamar backup and recovery
components in a Microsoft Hyper-V Guest backup environment.
Figure 6 Avamar backup and recovery components for Hyper-V Guest backup
Avamar with Data Domain backup strategies overview
Avamar 6.0 and later versions support virtual machine backups to a Data Domain device.
Using Avamar with Data Domain provides the following advantages:
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You can deploy more relatively smaller Avamar grids that integrate into larger Data
Domain systems, that holds most or all virtual machines.
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You can size the Avamar with Data Domain solution to take advantage of Data
Domain performance and scale.
EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
CHAPTER 6
Solution Verification Methodologies for Microsoft
Hyper-V
This chapter provides guidance and the steps required to validate the backup
configuration by performing recovery operations that use the EMC Avamar and Avamar
with Data Domain in a Microsoft Hyper-V environment.
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Data Protection verification methodology.............................................................. 28
Recovery Steps for Avamar.................................................................................... 28
Solution Verification Methodologies for Microsoft Hyper-V
27
Solution Verification Methodologies for Microsoft Hyper-V
Data Protection verification methodology
Verification of the Private Cloud backup configuration and the ability to restore data is
fairly straightforward for a guest-based backup. However, a Hyper-V image-level recovery
from a Clustered Shared Volume (CSV) requires additional steps.
With Hyper-V, the highest level of recovery enables you to recover an entire VHD. You can
recover the VHD in one of two modes:
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Application-consistent mode. The recovery operation uses this mode when the VHD is
online and VSS is running.
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Crash-consistent mode. The recovery operation uses this mode when the VHD is:
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Offline.
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Not installed as a Guest OS or the Guest OS is not Windows.
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Does not support VSS.
A user can recover data to the location of the data at the time of backup (in-place), or if
the user has the required role-based access, to an alternate location (redirected restore).
The severity of the disaster to the image determines the type of recovery that you will use.
Use an image-level recovery when:
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Registry corruption occurs on the image that you cannot repair.
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A virus has attacked the image and you cannot access the image.
However, depending on the backup and recovery strategy, you can use a guest-based
recovery to:
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Recover data files, database files, and transaction logs. This includes applicationconsistent images for Exchange, SQL Server, and SharePoint.
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Perform file level recoveries from images.
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Perform an in-place or a redirected restore.
Microsoft Hyper-V supports an application-consistent recovery with either guest or CSV
(Image).
Recovery Steps for Avamar
The following core Avamar VMware vSphere documents, available from the EMC Online
Support website outline the specific steps for various recoveries:
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Avamar 7.0 for VMware User Guide
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EMC Avamar 7.0 Operational Best Practices
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EMC Avamar 7.0 Administration Guide
EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide
CHAPTER 7
Reference Documentation
This chapter summarizes the documentation to review for more information about EMC
Avamar, VMware vSphere, and Microsoft Hyper-V.
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Documentation..................................................................................................... 30
Reference Documentation
29
Reference Documentation
Documentation
The following documents provide additional and relevant information. If you do not have
access to a document, contact your EMC representative.
Product documentation
The following documents provide additional and relevant information:
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Avamar 7.0 for Hyper-V VSS User Guide
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EMC Avamar 7.0 Administration Guide
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EMC Avamar 7.0 for VMware User Guide
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EMC Avamar 7.0 Operational Best Practices
Other documentation
The Microsoft website provides documentation on Microsoft Hyper-V: http://
www.microsoft.com
The VMware website provides documentation on VMware vSphere and vCenter: http://
www.vmware.com
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EMC DATA PROTECTION OPTIONS FOR VSPEX PRIVATE CLOUD Design and Implementation Guide