1emc confidentialinternal use only emc emea tc conference 2010 supporting our customers journey to...
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1EMC CONFIDENTIAL—INTERNAL USE ONLY
EMC EMEA TC Conference 2010
Supporting Our Customers’ Journey to the Private Cloud
BRS Solutions for VMware
2EMC CONFIDENTIAL—INTERNAL USE ONLY
Image vs Guest Level Backup Guest level backup: traditional backup type by using backup software
agent inside VM to read and transfer data just like on physical system. Image level backup: backup is performed from ESX host by freezing VM
and backing up its image.
Image Guest
Backup application compatibility
Limited, but increasing Requires only qualification
VM system compatibility Limited to specific guest OS types and disk formats
Transparent
VM application compatibility
Limited Transparent, standard backup application modules can be used.
Performance High to very high Low to medium
Resource usage Low to medium High
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Application vs Crash Consistency Typical image backup provides so-called crash-consistent backup.
In case of restore, VM is restored to a state equal of unplanned shutdown. It does not provide application-awareness
To provide application-consistent backup, application itself must be informed of backup Possible on Microsoft platform via VSS framework Generally up to backup software vendor to provide VSS integration
Limited VSS integration provided by VMware starting with vSphere 4.1 Supported only for VMs running Windows 2008 Supported for limited set of applications
With VSS integration, backup level reached is application-consistent, but not application-integrated
For full application-integration and advanced capabilities, must use in-guest backups with appropriate application module.
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VCB:VMware Consolidated Backup Introduced with VMware ESX server 3.0 and still present in
vSphere 4.0 Leverages VMFS snapshot technology Not stable before VCB 1.5 introduced in ESX 3.5 Latest version is VCB 1.5 Update 2 from March 2010 VMware discontinued development of VCB and existing
customers are encouraged to upgrade to VADP based solution VCB is no longer present on vSphere 4.1 VCB is still supported for restore purposes even on latest
vSphere versions VCB requires a separate HW proxy host VCB requires presence of VMware vCenter Converter
(vConverter) vConverter version must match supported version from
backup application.
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VADP:VMware Storage APIs for Data Protection Introduced with VMware vSphere 4.0 Leverages VMFS snapshot technology Backup flow is based on more integrated API Supports VMs based on VMware vStorage VMFS
VADP cannot be used to protect pass-through disks(RDM: raw device mapped disks in physical compatibility mode)
VADP cannot be used to protect network mounts (CIFS or NFS) within guest
Backup solution can optionally have deeper integrated with storage arrays via VAAI: VMware vStorage APIs for Array Integration This offloads VM snapshot creation from ESX host to array itself
Introduces limited application-awareness starting with vSphere 4.1
Proxy host is a VM itself. Need a separate VM proxy for each OS type (Linux or Windows)
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VADP vs VCB Quick Compare
Unlike VCB, which requires customers to download and install a separate
VADP VCB
Requires additional download & install
No, built into the data protection software Yes
Full virtual machine image backup Yes, single step copy – source to target Yes, with two step copy – source to VCB proxy and VCB proxy to the target
Incremental virtual machine image backup
Yes – using change block tracking No
File level backup Yes, both Windows and Linux Yes, Windows only
Full virtual machine image restore Yes Yes, by using VMware Converter
Incremental virtual machine image restore
Yes No
File level restore Yes, using restore agents Yes, using restore agents
CLI for image backup No Yes
CLI for file backup Yes Yes
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CBT:VMware VADP Change Block Tracking VADP supports optional usage of CBT CBT is disabled by default and must be enabled per
VM CBT requires that VM version is 7 or higher.
Environments upgrading from ESX 3.x to ESX 4.x need to upgrade each VM
CBT does introduce small performance penalty on production system Not recommended for VMs with very high change
rate
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EMC BRS Solutions for VMware
NetWorker Avamar DataDomain
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NetWorker and VMware ProtectionSupport for vSphere (VCB support in all current versions)
Deduplication support
Granular and application consistent guest level backup
Off-host snapshot-based backup
Granular and full image recovery with single image backup
Incremental and differential file backups based on full image
Licensed per physical host. Not per VM.
VDAP support coming in NW 7.6 SP2
OFF-HOST
IN-GUEST
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VMware Auto-Discovery and Visualization
Auto-discoveryAutomatically discover VMs Notification of unprotected VMs
VisualizationVisual map of the environmentInteractive controls to filter displayDisplays relationships between NetWorker and virtual environmentsHelps determine load balancing Configure VM backups from map—easy, right-click-to-launch wizard
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NetWorker with Data DomainUse with existing disk-based or
VTL capabilities
Use with DD Boost Improved performanceClone-controlled replicationAutomated configurationMonitoring and reporting
Primary data center Remote site
Replication
WAN
Data Domain
FILE SYSTEMS AND APPLICATIONS
NetWorker
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Benefits of Data Domain Boost Deduplication distributed to
backup serversIncreases backup speedReduces network traffic
Clone-controlled replicationSchedules replicationCatalog awareness of replicated
copies
Ease of useAutomated configurationMonitoring and reporting
NetWorker Data Domain
DD Boost DD Boost
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NetWorker with Avamar Supports file systems and
applications
Physical and virtual
Manage traditional and deduplication backup Single client or application module Common administrationFull indexing and browseCommon recovery
Primary data center Remote site
WAN
Avamar
FILE SYSTEMS AND APPLICATIONS
Replication
NetWorker
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Avamar VMware Guest BackupNo-cost Avamar agents assure application consistency
Agent resides in each virtual machine
Deduplicates within and across virtual machines – as if they were physical servers
Reduces resource contention and speeds backups
Provides file-level restore for Windows, Linux and Solaris
Avamar Agents
VMware ESX
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Avamar VMware Image BackupAvamar integration with VMware vStorage API
Deduplication within and across VMDK filesLoad-balancing across proxy
virtual machines
Change-block-tracking minimizes recovery time
File level recovery from image backup
Replication provides DR for backed up VMDKs
Resource Pool
VMware Virtualization Layer
x86 Architecture
Physical server
Virtual Machines
SANstorag
e
Avamarserver
Mount
= Avamar Software Agent
Physical server
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Proxy Server Load BalancingAvamar efficiently uses available resources
How does this work?1. Avamar automatically assigns VMs backup
jobs to available proxy servers using a round robin protocol
2. Backups are distributed evenly across available virtual proxy servers
BenefitsAutomatic and transparent
More efficient backups
Better use of available resources
Simplifies the management of virtual proxy servers
Applied either globally or in groups
ESX
SER
VER
CLU
STER
Storage LUNs
Virtual Machines
Proxy Servers Pool
Avamar
DRS
VMware
VMware
VMware
VMware
VMware
VMware
VMwareVMware
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Use Cases Clear Channel
Protecting ~90TBs/1200+ VMs using Avamar and VADP&CBT image backups
Backup time range 3 min to 1 hour/VM Without CBT some very large VMs (750GB in size) take upwards of
6-7 hours to backup. Bank of America
Protecting up 350TBs+/6000 VMs using guest backup Average backup time 6 min/VM
GSK Protecting ~50TBs/1000 VMs using guest backups Average backup time 6 min/VM
USAA Protecting ~75TBs/1300 VMs using guest backups Backup time range from 2 minutes to 1 hour
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Q & A
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THANK YOU