Avamar and VMWare - Denmark
Backup og De-dup i et VmWare miljø
EMC Avamar
Frank Simonsen
Systems Engineer
1
EMC Next Generation Backup and Archive
EMC Backup, Recovery and Archive Solutions
Assessment, Implementation
Services
Software
File Server Assessment, Exchange Server Assessment,
Backup Assessment
Intelligent
Archiving
EmailXtender, DiskXtender,
Hardware
Active Archive
Centera
Backup and
Recovery
NetWorker
Avamar
HomeBase
Analytics
Classification
Backup Advisor
Infoscape
Backup to Disk
Disk Library
Tape
Libraries
2
De-duplication Process Overview
1. Client agent walks
the file system
2. Client agent breaks
modified files into
variable-size objects
3. Only unique objects
are backed up
Avamar Server
3
Global De-duplication: PowerPoint Example
Remote Site 1
Data Center
First Instance
Duplicate Instance
Company_Overview.ppt
Remote Site 2
Modified Instance
Company_Overview.ppt
Company_Overview.ppt
A
B
A
B
A
B
C
D
C
D
C
D
A
Only unique
data segments
are backed up
B
C
D
Data already backed up,
so only unique IDs stored
(20 byte pointers)
A
B
C
D
New data segment
E identified and backed up
E
De-duplication Server
(stored backup data)
4
Backup De-duplication
Traditional Backup v. EMC Avamar
Traditional Backup vs. EMC Avamar
Total Cumulative Storage - 10TB MS Office file data
Cumulative
Media
(Traditional
= weekly fulls + daily
incrementals;Required
EMC Avamar = daily fulls)
Traditional Backup
200
192
180
8 weeks
4 weeks
160
144
140
Cumulative TB
Traditional Backup
w/Compression (2:1)
176
160
128
120
EMC Avamar
112
100
96
96
88
80
80
80
72
64
60
64
56
48
40
20
32
16
8
0 3.2
1
16
48
40
32
24
3.4
3.6
3.8
4.0
4.2
2
3
4
5
6
4.4
4.7
4.9
5.1
5.3
5.5
7
8
9
10
11
12
ar
m
a
Av
Weeks
Traditional Backup
Traditional Backup with Compression (2:1)
EMC Avamar
Avamar makes backup to disk more economical
Total Cumulative Storage - 10TB MS Office file data
(Traditional = weekly fulls + daily incrementals; EMC Avamar = daily fulls)
5
Unique Value Proposition
Remote/Branch Office
Need to improve data
protection for business
continuity and compliance?
Unable to backup using
existing WAN bandwidth?
Desire to reduce time, spend
and risk with local tape
mgmt and transport?
Desire to slow growth of
secondary storage?
VMware Environments
Unable to complete full
backups in available windows?
Production data or moving
test/dev to production?
Desire to drive further
consolidation hindered by
backup bottlenecks?
Guest, VCB or console
backup?
Backup up both files and
virtual disks (*.vmdk)?
Yes?
LAN-attached File Servers
Unable to complete full
backups in available
windows?
Desire to replicate across
WAN to DR site?
Desire to reduce spend and
risk associated with tape
backup infrastructures?
Desire to slow growth of
secondary storage?
Yes?
Yes?
*Recommended initial deployment guidelines, not limits.
1 to 15 TB of primary data to
protect
5 to 500 sites
Agent-only option if possible,
if RTO acceptable over WAN
or if RTO acceptable to
restore at and ship systems
from data center
(Follow guidelines for file
servers, databases and
VMware)
1 to 15 TB of primary data to
protect
VMware guests up to 1.5 TB
each
Databases up to 500 GB,
daily change rate < 5%
VM, VCB or Console backup
Windows or UNIX
1 to 15 TB of primary data to
protect
Maximum file count per file
server < 5,000,000 files
Up to 1.5 TB per file server
Avoid x-rays, movies, sound
files, analog files
Windows or UNIX
6
A Avamar Software Agent
Deployment Flexibility
Large Remote Site
Small Remote Site
A
A
Primary systems
(ENCRYPTED)
(ENCRYPTED)
Avamar
server
Data Center
Avamar agent only
on primary systems
WAN
Remote Recovery Site
A
A
Primary systems
Primary systems
(ENCRYPTED)
(ENCRYPTED)
Avamar
server
Avamar
server
Tape
Vault
7
Innovative Architecture
Avamar Server
Redundant Array of Independent
Nodes (RAIN) architecture
Parity across
storage nodes
Verified
checkpoint
– Each server node with internal disk
storage and CPU
– Grid architecture for online scalability
and performance
– Provides server node failover and
fault tolerance
Daily integrity checks
RAID protection from disk failures
Available for Avamar software
and Avamar Data Store
Utility and
spare node
8
Avamar Data Store
Prepackaged, Preconfigured Deployment Option for Avamar
Complete EMC backup and recovery solution
– Avamar de-duplication software
– EMC-certified hardware, fully configured and delivered
Built-in high availability
– Avamar RAIN technology
– Spare node, RAID
– Redundant power
Simplifies
– Purchase (single vendor, certified hardware)
– Deployment (minimizes onsite setup)
– Service (single vendor support)
9
Avamar Data Store
Flexible Deployment Options
Avamar Data Store
– Individual Avamar Data Store scales to equivalent
of up to 486 TB of traditional backup storage*
– Backup media requirement reduced 20–30 times
– Each two-node expansion adds the equivalent of
70 TB of traditional backup storage*
Avamar Data Store, single node
– Supports equivalent of up to 37 TB of traditional
backup storage*
– Designed for easy deployment at remote offices
– Offers fast, local recovery without dependence on
a WAN connection
*Note: Equivalent traditional backup capacity assumptions: 100 percent MS Office file data, weekly full and daily
incremental backups, no compression, 10 percent daily change rate, 90-day retention
10
Avamar Virtual Edition for VMware
Avamar Server Software Deployed in VMware Virtual Machine (VM)
Industry’s first de-duplication virtual
server for backup and disaster recovery
Avamar VM
1 TB
Operating System
– No other backup/recovery application can
encapsulate backup and disaster recovery
Leverages shared server and storage
infrastructure
– Can utilize any storage (SAN, NAS, or DAS)
Replication (of application and storage)
eliminates shipping tapes
Application
Avamar VM
1 TB
Operating System
Operating System
– Replicate between Avamar virtual machines,
or from Avamar virtual machines to Avamar
Data Store or standard Avamar servers
Facilitates rapid, cost-effective
deployment and return on investment
ESX Server
Hardware
CPU
Memory
NIC
Disk
11
Avamar VMs Can Replicate to Avamar Data Store
Global De-duplication, Centralized Backup, and Disaster Recovery
Remote Office
Remote Office
Data Center
Application
Avamar
Application
Avamar
Operating System
Operating System
Operating System
Operating System
CPU
ESX Server
ESX Server
Hardware
Hardware
Memory
NIC
Disk
CPU
Remote Office
Memory
NIC
Disk
Remote Office
Application
Avamar
Application
Avamar
Operating System
Operating System
Operating System
Operating System
CPU
ESX Server
ESX Server
Hardware
Hardware
Memory
NIC
Disk
Avamar
Data Store
CPU
Memory
NIC
Disk
12
Avamar Data Store Capacity
Avamar Data Store Models
Single Node
Customer Environment
Remote Office
or Small Data
Center
6-Node
Datacenter,
Back Office
12-Node
18-Node
Datacenter,
Back Office
Datacenter,
Back office
RAIN
No
Yes
Yes
Yes
Utility Node
No
1
1
1
Spare Node
No
1
1
1
Rack (40u Titan)
No
Yes
Yes
Yes
Switch (24 port GBE NCS)
NA
1
1
1
Upgradeable
No
Yes, 2-node
increments
Yes, 2-node
increments
No
1 TB
4 TB
10 TB
16 TB
1.5 TB
6 TB
15 TB
24TB
De-duplicated data capacity
Avamar Server capacity
13
Supported Client Platforms and Applications
Platform
Versions
Microsoft Windows
XP, NT 4.0, 2000, 2003
Microsoft Exchange
5.5, 2000, 2003
Microsoft SQL Server
7.0, 2000
Oracle
9i, 10g, 10gR2
NDMP for EMC Celerra and
NetApp Filers
DART 5.5
Data ONTAP 6.3, 6.4, 6.5, 7.0.4, 7.0.5, 7.0.6
Sun Solaris
2.6, 7, 8, 9, 10
AIX
5.1, 5.2, 5.3
HP-UX
11.0, 11iV2, 11iV2
Red Hat Enterprise Linux
2.1, 3.0, 4.0
Red Hat Linux
8.0, 9.0
Mac OS X (PowerPC and Intel)
10.4.x
SUSE Linux Enterprise Server
8, 9
VMware
All versions for supported guests; VMware ESX Server 2.5.3,
3.0.1; VMware Consolidated Backup
IBM UDB DB2
8.2
14
Network De-duplication
Mileage may vary: customer ratios vs. full backups
Amount of
Primary Data
Amount Moved
Daily
Daily Dedupe 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 Filers
(NDMP backups)
3,265 GB
24.2 GB
135:1
Mix of 20% databases, 80% 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
Data Type
15
Remote Office Backup Via WAN
Without Avamar Clients
With Avamar Clients
Data De-dupe
Central
Data Center
WAN
Data De-dupe
WAN
De-dupe
Server
Challenges
WAN blockage
Poor reliability
Decentralized
Untrained IT staff
Target approach requires hardware at
every site
Data De-dupe
Advantages
Automated
Encrypted
Centralized
Outstanding ROI
16
Traditional Backup vs. EMC Avamar Backup for VMware
VMware virtualization delivers a new paradigm
Backup must evolve to keep up
Traditional backup software
– Not optimized for virtualized environments
– Lots of redundant data
– Long backup windows
Avamar’s de-duplication software
– Efficient daily full backups to meet short backup windows
– Optimizes consolidation capabilities
– Support for Guest-level, VCB and console backups
17
Traditional Backup Solution Challenges
~200% weekly
per virtual machine
Backup
Server
~200% weekly
per virtual machine
Disk / Tape
Traditional backup moves ~200% of primary data per week!
• Traditional backup is very inefficient – does nothing to eliminate redundant
data.
• Redundant data along with weekly full and daily incrementals = up to 200% of
primary data is backed up per week!
• Does nothing to solve network, backup server, or disk bottlenecks…
18
Avamar Backup Solution Benefits
Avamar Agents
Only 2% weekly
per virtual machine
Avamar backup only moves ~2% of primary data per week!
• Up to 10X faster backups
• Up to 300:1 less network bandwidth
• All backups stored as “virtual full images”
19
Avamar Deployment Options in VMware environments
Guest Level backup - Avamar agent is installed
inside the Virtual Machine
VMware Consolidated Backup (VCB) - Avamar agent
is installed on the VCB proxy
ESX Service Console backup - Avamar agent is
installed on the ESX Service Console
20
Guest (or VM) level backup
Avamar Agent installed
inside each Virtual
Machine.
Avamar Agents
Most common
deployment method;
many advantages
Avamar configuration
same as for physical
servers
Avamar Server
No advanced scripting or
configuration needed.
Supports Windows,
Linux, HP-UX, AIX,
Solaris, specific database
agents, etc.
ESX Service Console
21
Avamar Benefits for Guest-level Backups
EMC Avamar efficiently protects
VM’s:
Traditional Backup
(Full + Incrementals)
Up to 95% reduction in data moved
Up to 90% reduction in backup times
Up to 50% reduction in disk impact
~ 200% weekly
Up to 95% reduction in NIC usage
Avamar – Efficient Daily Full Backups
Up to 80% reduction in CPU usage
Up to 50% reduction in memory
usage
Maintain effective consolidation ratios
without
over taxing
utilization
All backups
storedCPU
as “virtual
full
backups,” ready for immediate restore
– No application of full and
incrementals
~2 to 7% weekly
22
Guest (or VM) level backup (continued)
Requirements
– Virtual Machine Operating System must have a supported Avamar
Agent.
Advantages
–
–
–
–
–
–
Highest Level of efficiency (Data De-duplication)
Application Backup – SQL, Exchange, Oracle
Allows for partial or file level restores
Easily fits into most existing backup schemes
Requires no advanced scripting or VMware knowledge
Day to day procedures for backing up do not change
Considerations
– Although file level restores are one step, a two-step restore is required
for full system recovery
23
Guest Level Restore
File Level Restore
– Performed as a
normal file level
restore
– Select the file or files
and restore
Full System
Restore
– Requires an OS with
an Agent installed.
– Deploy a new Virtual
Machine from
“Golden Image”
– Power on the Virtual
Machine and register
it with the Avamar
Server
– Perform a redirected
restore to the new
Virtual Machine
Full System Restore
24
VMware Consolidated Backup (VCB)
What is it?
– New Backup Solution from VMware
– Off-loads CPU workload to a proxy
server
Consolidated Backup Benefits
Centralized
Data Mover
–
–
–
–
–
Mount VMs across SAN
File system mount for Windows
.vmdk backup only for everything else
Offload CPU, memory, NIC footprint
Reduce backup agents
Great for the Right Applications
Centralized file level backup enables easy & reliable data protection
25
EMC Avamar & VMware Consolidated Backup
VCB Proxy Server w/
Avamar agent
am
e
r
t
up s
k
c
Ba
Ba
ck
up
Avamar Server
st
re
am
SAN
Avamar Supports VCB
Avamar de-duplicates at VCB proxy
server
Windows: Avamar can backup at the
file level through VCB
EMC CLARiiON Arrays
All OS: Avamar can de-duplicate .vmdk
files both for storage and replication for
DR
26
Up to 10X faster backups
VCB and AVIM (Avamar VCB Interoperability Module)
VMware Consolidated Backup with Avamar
– Consolidated Backup utilities and scripts work in conjunction with
Avamar Agent software and AVIM (Avamar VCB Interoperability
Module) scripts.
– Avamar Agent, interoperability module, and Consolidated Backup run
on the VCB proxy, a physical machine that has Microsoft Windows
2003 installed.
How AVIM Works
– Set of scripts that leverage VCB scripts to snap/mount and un mount
running virtual machines.
– Scripts are called before and after the backup process.
– Scripts exist for full VM backup and for file level backup (for Windows
Virtual Machines only).
27
VMware Consolidated Backup (Continued)
VCB Requirements
–
–
–
–
ESX 3.0.1
Shared storage over a fibre channel SAN
VCB proxy system running Microsoft Windows 2003 SP1.
The VCB proxy needs to be connected to the VirtualCenter
Server
(or to a single ESX Server system if you are not using
VirtualCenter)
Avamar Requirements
– Avamar Windows 2003 Agent Installed and Configured
28
VMware Consolidated Backup (Continued)
Advantages
–
–
–
–
–
Backup resources are offloaded to the VCB Proxy
Full image backups of running virtual machines
File level backups for Windows Virtual Machines
Image Virtual Disks are compressed
Consolidation ratios for VMware are optimized
Considerations
– Restore is a multi-step process
– VCB does not support iSCSI or NAS/NFS
– VCB cannot backup Virtual Machines with disk images stored on a storage
device that the proxy cannot access
– VCB cannot backup Virtual Disks that are RDM in physical compatibility mode
– VCB cannot backup Virtual Machines that do not have an IP address or a
domain name server (DNS) name associated with them
– VCB cannot perform File Level backup of Virtual Machines running Operating
Systems other than Microsoft Windows NT 4.0, Windows 2000, Windows XP,
Windows XP Professional, or Windows 2003.
29
VCB AVIM Restore Process
Restoring a Virtual Machine Image
1. Restore the .vmdk to the proxy server
Copy the .vmdk file to the ESX server
Run an import command
2. Restore the .vmdk to the ESX Server
Run an import command
Note: This requires an Avamar Agent installed on the ESX Server
Restoring from a File Level backup (windows only)
1. Select files for restore on the Avamar server
Restore to the VCB Proxy
Copy to the target virtual machine
2. Install an Avamar agent on the target virtual machine
Perform a redirected restore directly from the Avamar server to the
target virtual machine
30
ESX Console Backup
Avamar Agent installed
on the Console OS
(COS).
Requires advanced
configuration to ensure
that backups will not
impact critical resources
How ESX Service
Console Backup Works
Avamar Server
ESX Service Console
2 methods
– Use vcbMount to
create a snapshot of
the a running virtual
machine for backup
– Suspend a Virtual
Machine and back it
up directly
31
ESX Console Backup (Continued)
Requirements
–
–
Avamar Linux Agent installed and configured
Additional disk space for virtual machine snapshots
Advantages
–
–
Virtual Machine Image Level backups without VCB
No Proxy or SAN required
Considerations
–
–
–
No file level backup
Restoring is a two-step process
Advanced Configuration: without proper scheduling and setup, backup
jobs can impact system resources and running virtual machines
Method 2 only
–
–
Virtual Machine must be powered off or suspended before backup starts
Virtual Disk Images are not compressed (empty space is processed)
32
ESX Console Restore
Method 1 - Snapshot
– Restore the Virtual Machine to the ESX Server
– Use vcbRestore to restore the Virtual Machine to the ESX Server
Method 2 - Suspend
– Restore the Virtual Machine to the ESX Server
– Register the Virtual Machine
33
Spørgsmål ?
34
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