Download - Avamar Technology Overview
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Avamar
Technology Overview
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Growth of Remote Offices
Remote offices are growing rapidly– Over 4 million remote offices in the US
– No “standard” remote office size, data, staff, network, etc.– The average branch has between four and six servers - Nemertes Research
Business data no longer resides solely in the data center
Remote office data protection: costly, time consuming
Sometimes non-existent
69%69% Respondents who are unhappy with current remote office backup solutions
— Gartner
“60 percent of all enterprise data resides at remote offices”
— Gartner
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Remote Office Branch Office Environment: Business Problem and the Avamar Answer
Business Problem– Mgmt and business risk – significant amount of ROBO data unprotected– Remote data growing rapidly; internal/external regulatory compliance requirements
Technical Description– Local tape-based backup is typical – WAN constraints; tape shipping for DR; non-technical local staff; ad-hoc processes
Avamar Answer - Combine local office data protection with DR and centralized management and control.
– De-dupe at the source for fast, daily fulls via existing WAN (most cases) – Flexible deployment - agent only for smaller ROBO sites; Avamar Virtual Edition– Meet strict SLA’s, centralized management, data encrypted in flight & at rest
Results to the customer– Improved SLA for remote office backup / restore and data integrity– Improved reporting and security – Reduced mgmt spend in remote sites and datacenters– Reduced or avoided WAN costs
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EMC Avamar Overview
Radically reduce the size of backup data– At the source (client) – before it is transferred
across the network and stored to disk– Dramatically reduces required bandwidth– Cuts backup time by up to 10X
De-duplicate & manage globally – Across sites & servers for maximum efficiency
Reduce tape dependence – Cost-effectively store more full backups on disk
Fast, secure, backups – Via existing physical & virtual infrastructure
Revolutionizes the backup process with source/global data de-duplication
The Bottom Line
Save Money– On storage and network
Reduce Risk & Complexity– Ensure data is always in your control
Address Backup Problem Areas– VMware, Remote Sites, NAS, Network
Bottlenecks
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Avamar Data Store or
Avamar Server
How Avamar Data De-duplication Works
Source / Global Data De-duplication
Client agent scans the data for changes
Modified files broken into sub-file variable length segments
Only unique sub-file segments are backed up
Queries local file cache to identify and disregard static files
Compresses and applies a hash to each object
Queries local hash cache, and then the Avamar server to determine if objects are unique
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EMC Avamar: Real-World Results
Data Type
Amount of Primary Data Backed Up
Amount of Data Moved Daily
Daily De-duplication Ratio
Windows file systems 3,573 GB 6.1 GB 586:1
Mix of Windows, Linux, and UNIX file systems 5,097 GB 11.7 GB 436:1
Engineering files on NAS (NDMP backups) 3,265 GB 24.2 GB 135:1
Mix of 20 percent databases, 80 percent file systems (Windows and UNIX) 9,583 GB 80.0 GB 120:1
Mix of Linux file systems and databases 7,831 GB 104.2 GB 75:1
Source: EMC
Avamar Daily Full Backups vs. Traditional Daily Full Backups
While results will vary by data type and mix, Avamar can dramatically improve backup performance and efficiency!
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Innovative Architecture
RAID protection from disk failures
Redundant Array of Independent Nodes (RAIN) architecture
– Each server node with internal disk storage and CPU
– Grid architecture for online scalability and performance
– Provides server node failover and fault tolerance
Replication– Utilizes same de-duplication technology
Daily integrity checks
Available for Avamar software and Avamar Data Store
Avamar Data Store
Parity across storage nodes
Verified checkpoint
Utility andspare node
RAIN – US Patent No. 6,826,711
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Traditional Remote Office Backup & Recovery
Files / Email
Web
applications
BackupServer
File Servers
WAN
• Traditional ‘incremental’ file size too big– WAN ‘blockage’– Poor reliability– Decentralized– Untrained IT staff at remote sites
Challenges
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Next-Gen Remote Office Backup & Recovery
Files / Email
Web
applicationsFile Servers
WAN
Advantages – Simplicity
• Source de-dupe enables WAN backup– Automated– Encrypted / Secure– Centralized– Flexible– Outstanding ROI
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Deployment Example
Primary Data Center(Main Data Store)
EnterpriseManager
AvamarMulti-nodeData Store
AvamarSingle-nodeData Store
Client/Agent
Legend
Deployment Flexibility
Secondary Site(DR System)
Secure VPN
ROBODirect to Main Data Store
Direct to Local Data StoreReplicate to Main Data Store
Local System
Direct to Avamar Virtual Ed.Replicate to Main Data Store
A VEOS
Secure ClientSSL Server Paths Secure AES
Replication Paths
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Customer Profile - Education-Regional Schools
Challenge (20TB Environment)
– Customer having significant challenges meeting backup windows at 200 Schools. 5 hour backup window per school
– Lack of centralized backup control and policies resulting in remote backup failures and missed backups
Solution– Phase 1 Single Avamar grid-Phase 2
Replication grid added
Solution Impact– Backup of all schools under central policy
control resulting in successful backups
– Central identification of any failed backups
– All 200 schools backed up in 5 hours vs 5 hours per school using local backup
– Elimination of tape processes and associated costs
Sales Strategies– Campaign started with a Backup
Assessment followed by standard de- dupe presentation
– Developed a TCO model to prove the value of solution
– Standard backup control and policy over all remote school locations
– Fast backups across all schools
Case Study Overview
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NAS Environment: Business Problem and the Avamar Answer
Business Problem– SLAs for full NDMP backups/restores are often unmet– Network needs and NDMP backup licenses result in higher costs– Long-running backups can impact application availability and user productivity
Technical Description– Full NDMP backups can take days to complete– Backups consume significant network and filer resources
Avamar Answer – Faster NAS backups with fewer resources consumed– Eliminate full backups while offering simple one-step recovery– True centralized management of NAS backups– Reduce tape infrastructure, media and handling costs
Results to the customer– Backup times significantly reduced – easier to meet SLAs– Flexible recovery options enables more flexible DR solutions– Reduced demand on network and filer resources
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#1 challenge for NAS clients is meeting short backup windows
Traditional process - weekly full backup and daily incrementals to tape
Full backups often exceed available window – leaves data unprotected if job fails or impacts workday productivity if job continues
Daily full NDMP backups - up to 10x faster than traditional methods
Enables daily full backups and eliminates need for incrementals
Meet short backup windows to protect critical NAS data
Backups immediately available for file, directory or full system restores
NAS Backup – Before & After, with Avamar
Before Avamar
With Avamar
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Avamar – Fast Efficient Single Step Restore
Single Step Recovery –no delays-restores start immediately
Eliminates multi-step complexity
AVAMAR Full
Restore
Avamar Grid
Select Data To RestoreRestore to Registered Agent
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“Avamar enabled us to reduce administrative support requirements by 80 percent, reduce backup windows by 90 percent, and recover lost files and servers in minutes rather than hours.”
— Mike DePhillip, Virginia DMV
Remote Office/Branch Office Backup
* Source: IDC, “Gaining Control of Remote Office Data Protection,” March 2007
State of Virginia
Before Avamar73 remote offices, backup to local, direct-attached tape drivesNo local IT staffDaily backup required five hours per site; six hours to restore entire server
With AvamarFour hours to backup all 73 offices via existing WAN (56k-T1) to central Avamar server45 minutes to restore entire server – files restored in secondsCentralized management and control
Commonwealth of Virginia’s Department of Motor Vehicles
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