VMware Site Recovery
Manager
SRM5 Update
Ed Walsh
vSpecialist
E-mail: ed.walsh@emc.com
Phone: 518-928-0694
Twitter: @vEddieW
© Copyright 2011 EMC Corporation. All rights reserved.
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What is Site Recovery Manager?
Site Recovery Manager Complements vSphere:
 simplest disaster protection with auto vCenter discovery and
embedded array based replication management
 enable frequent non-disruptive testing
 ensure fast, automated failover
Simplify management of recovery and migration plans
 Replace manual runbooks with centralized recovery plans
 From weeks to minutes to set up new plan
SRM Momentum:




Introduced in Q2’ 2008
125,000+ units sold
5,000+ customers
50% annual growth in 2010
Demo
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SRM High-Level Architecture
Production Site
vCenter Server
Site
Recovery
Manager
Network
Virtual Machines
Recovery Site
Site
Recovery
Manager
vCenter Server
Virtual Machines
Windows and Linux VMs
VMware vSphere
VMware vSphere
Servers
Server hardware can be
different makes and models
Servers
Storage
Storage
Storage Replication
Fibre Channel, iSCSI, NFS
Demo
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SRM5 Enhancements
 Technology
• vSphere Replication
 Workflow
• Planned
Migration/reprotect/failback
• DR event
 Miscellaneous
•
•
•
•
•
IPV6
Miscellaneous
API – Protected Side
Dependencies
Resolved Issues
 User Interface
• Completely new UI
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Technology – vSphere Replication
• Virtual machines replicated without advanced array
functionality
• Enables replication between heterogeneous
datastores
• Replication is managed as a property of a virtual
machine
• Efficient replication minimizes impact on VM
workloads
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vSphere Replication Details
 Replication Granularity per Virtual Machine
• Can opt to replicate all or a subset of the VM’s disks
• You can create the initial copy in any way you want - even via
sneaker net!
• You have the option to place the replicated disks where you
want
• Disks are replicated in group consistent manner
 Simplified Replication Management
• User selects destination location for target disks
• User selects Recovery Point Objective (RPO)
• User can supply initial copy to save on bandwidth
 Replication Specifics
• Changes on the source disks are tracked by ESX
• Deltas are sent to the remote site
• Does not use VMware snapshots
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Replication UI
Select VMs to replicate from vSphere client by right click
options
Can do this on one VM, or multiple VMs simultaneously
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vSphere Replication 1.0 Limitations
 Focus on virtual disks of powered-on VMs
• ISOs and floppy images are not replicated
• Powered-off/suspended VMs not replicated
• Non-critical files not replicated (e.g. logs, stats, swap, dumps)
 vSR works at the virtual device layer
•
•
•
•
Independent of disk format specifics
Independent of primary-side snapshots
VM is recovered with collapse snapshots
Physical RDMs are not supported
 Storage DRS , FT, linked clones, VM templates not
supported
 Automated failback of vSR-protected VMs not
supported yet
 Virtual Hardware 7, or later, in the VM is required
 Minimum RPO of 15 minutes
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SRM Architecture with vSphere Replication
“Protected” Site
“Recovery” Site
vSphere Client
vSphere Client
SRM Plug-In
SRM Plug-In
SRM Server
vCenter Server
vCenter Server
SRM Server
vRMS
vRMS
vRS
ESX
ESX
ESX
vRA
vRA
vRA
ESX
Storage
Storage
VMFS
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ESX
Storage
VMFS
VMFS
Confidential
VMFS
SRM Scalability
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Maximum
Enforced
Protected virtual machines total
1000
No
Protected virtual machines in a single
protection group
500
No
Protection groups
250
No
Simultaneous running recovery plans
30
No
vSphere Replicated virtual machines
500
No
Confidential
Planned Migrations For App Consistency & No Data
Loss
Overview
Planned Migration
1 Shut down
production VMs
3 Recover appconsistent VMs
Site A
Site B
vSphere
vSphere
Two workflows can be applied to recovery plans:
 DR failover
 Planned migration
Planned migration ensures application
consistency and no data-loss during migration
 Graceful shutdown of production VMs in
application consistent state
 Data sync to complete replication of VMs
 Recover fully replicated VMs
Replication
2
Sync data, stop replication
and present LUNs to vSphere
Benefits
Better support for planned migrations
 No loss of data during migration process
 Recover ‘application-consistent’ VMs at
recovery site
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Planned Migration
New is Planned Migration.
Will shutdown
protected VM’s,
and then
synchronize
them!
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Automated Failback To Streamline Bi-Directional
Migrations
Automated Failback
Overview
Re-protect VMs from Site B to Site A
 Reverse replication
 Apply reverse resource mapping
Reverse original recovery plan
Site A
Site B
vSphere
vSphere
Reverse
Replication
Automate failover from Site B to Site A
 Reverse original recovery plan
Restrictions
 Does not apply if Site A has undergone
major changes / been rebuilt
 Not available with vSphere Replication
Benefits
Simplify failback process
 Automate replication management
 Eliminate need to set up new recovery plan
Streamline frequent bi-directional migrations
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Reprotect
After you use planned migration (or DR Event) to
migrate to your recovery site, you must reprotect to
enable the failback.
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Failback
Description
• “Single button” to
failback all recovered
VMs
• Interfaces with
storage to
automatically reverse
replication
Benefits
• Facilitates DR operations for enterprises that are
mandated to perform a true failover as part of DR
testing
• Simplifies recovery process after disaster
• Replays existing
recovery plans – so
new virtual machines
are not part of
failback
Reverse Replication
Site A (Primary)
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Site B (Recovery)
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Failback
To failback, you need first to do a migration (DR or
Planned), followed by a reprotect.
To do an actual failback, the recovery plan is now
run again
The recovery plan will now failback the VMs to the
original site.
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Failback (continued)
Reprotect is now almost complete . . .
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User Interface Enhancements
Thanks to some great UI researchers, designers,
and some wonderful customers!
Both sides visible
without Linked Mode!
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User Interface (continued)
New icons for
shadow VMs
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Miscellaneous
IPv6
• SRM will support IPv6 for all network links
• vSphere Replication will support
communication over IPv6 if underlying ESXi
servers support IPv6
IP Customization performance increase
In guest callouts:
• Since 1.0 you can execute a script that was
held on the SRM server, now you can do it
inside the guest
• Great for application customization
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Miscellaneous – In Guest Callouts/Scripts
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API
Existing API on recovery site preserved
New API on both protected and recovery sides
Protected Site API set includes:
 List replicated datastores / protection groups / resources /
VM
 Query the status of protection for a VM or VMs
 Protect or unprotect one or more VM
 Status of protection group
Recovery Side API includes:
 Recovery Plan info
 Start / cancel, list / answer prompts
 Get XML representation of historical run of plan
 Get basic result information of a plan (name, start, stop,
etc.)
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Dependencies
Functionality to help manage multitier applications
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Dependencies (continued)
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Dependencies (continued) – VM Startup
Order
Group 1
Group 2
Group 3
Group 4
App Server
Master
Database
Group 5
Desktop
Apache
Apache
Database
Database
Desktop
Apache
Desktop
App Server
Desktop
Exchange
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Mail Sync
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SRM5 – New & Improved!
 New user interface
 Planned migration – with replication update
 Failback
 vSphere Replication
 Faster IP customization
 Shadow VM icons
 In guest scripts
 VM dependency
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Thank You!
• Everything VMware at EMC Community http://www.emc.com/vmwarecommunity
• Join us every Thursday at 11:00 AM ET for our
EMC Solutions for VMware Webcast Series
• Virtual Geek Blog: http://virtualgeek.typepad.com/
• EMC Virtualization Backup & Recovery:
http://www.emc.com/solutions/businessneed/backup-recovery-archiving/backuprecovery.htm
• Protect your virtual world:
http://www.emc.com/microsites/brs/defenders.htm
• Learn about an EMC Backup Assessment:
http://web.emc.com/backuptothefuture
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THANK YOU
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