Demystifying Deduplication. Global SMB Event Marketing 2 APPROACH: What is deduplication? Eliminate...
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Transcript of Demystifying Deduplication. Global SMB Event Marketing 2 APPROACH: What is deduplication? Eliminate...
Demystifying Deduplication
Global SMB Event Marketing2
APPROACH:
What is deduplication?
Eliminate redundant data
Start with the backup environment
as the first phase
Maintain references to single instances of data across data
store
Deduplication eliminates redundant copies of data
by leveraging pointers to point duplicate files or blocks to a single object
Deduplication can decrease disk capacity requirements
by up to 98% and decrease bandwidth requirements for data transfer by up to 50 times.
Global SMB Event Marketing
• Data Deduplication is a capacity optimization feature – not a capacity optimization solution Need to understand what problem you are trying to
fix Dell can help find the right solution to your storage
challenges• As deduplication matures it will be
ubiquitous across a wide range of storage products
• Deduplication integrated into software functionality provides the greatest benefits Need to understand what problem you are trying to
fix Dell can help find the right solution to your storage
challenges
• Deduplication technology will expand beyond backup to include static archive data and inactive primary data
Dell’s point of view on deduplication
File
Block
Sub-blockInline Processin
g
Post Processin
g
Deduplication – Confusion abounds
Source
Target
Single Instance Storage
VTL
Different technologies
Different Architectures
Required
5
Types of deduplication
File
• aka Single Instance Store or SIS
• Typically primary storage
Block
• aka Sub-file or Fixed block
• Typically secondary storage
• Better dedupe ratios
Sub-block
• aka Variable block• or Byte-level• Typically secondary
storage• Best dedupe ratios• Most processor
intensive
Data deduplication eliminates common data at a file, block,
or sub-block level.
Disk Capacity
A B C D A B C E
A B C D E
Data object #1
Data object #2 F
FUnique data saved to disk
Global SMB Event Marketing
DeduplicationEnables Cost Effective Disk To Disk Backup
6
Shorten backup window and restore faster with B2D – At a cost similar to tape
Reduce storage capacity, power, cooling and space requirements
Centralize data protection and archive, reducing the burden on offices not staffed to manage it
Enable cost-effective DR
PrimaryDisk
Deduplication
Replication
Backup Archive
Secondary Disk2
Backup to Disk with Dedupe
Global SMB Event Marketing
Why optimize disk-based backup with deduplication?
B2D without deduplication
B2D with deduplication
10:1 ratio
Total capacity needed after 3 years (TB’s)
34.6 3.46
# drives needed 36 5Total storage cost ~$34k ~$8k
1. Example – 20TB of data growing 20% per year2. How long until the deduplicated storage capacity required
equals 3 years without dedupe? Just over 15 years
Global SMB Event Marketing
How deduplication fits into the backup environment
8
Appliance-based (Target)
Advantages:• Ease of implementation • Works with variety of backup
SW
Disadvantages: • Can be more expensive
solution• Replication target restrictions• Greater network traffic
overhead• Often on proprietary hardware
Server-based (Source)& Integrated (Hybrid)
Advantages:• Common management • Ease of use• Can be less expensive solution (lower TCO)• Reduces network traffic• Global deduplication opportunity
Application Servers Backup Server Deduplication Appliance
JBOD/NAS/SAN
OR
Deduplication
Here here hereor or
Deduplication
Deduplication