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1 © Copyright 2013 EMC Corporation. All rights reserved.
Continuous Availability Over Distance Extending Clusters Across Your Distributed Data Center
Muhammad Salama Systems Engineer, Team Lead
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Unplanned Outages: Disaster Strikes!
POWER FAILURE EARTHQUAKE
FIRE FLOODS TECHNICAL
ERRORS
WIND STORM
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Planned Outages: Juggling Act!
TECH REFRESH
RELOCATION
WORKLOAD REBALANCING
MAINTENANCE
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DOWNTIME COST
$1.8 million per day
$45,000 per hour
$750 per minute
In an “Always On” world, loss of critical applications can be fatal SOURCE
• Business Disruption • Lost Revenue • End User Productivity • IT Staff Time Allocation • Fines and Penalties • Company Reputation
* Enterprise Management Associates - 2012
The Cost of Downtime
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http://middle-east.emc.com/microsites/2012/emc-brs-survey/index.htm
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http://middle-east.emc.com/microsites/2012/emc-brs-survey/index.htm
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Disaster Recovery Tape Backup and Replication
High Availability In-data-center Clusters for Application Protection
New Levels of Business Continuity
Application continues with no disruption (Zero Downtime)
Continuous Data Protection Operational Recovery to Any Point in Time
Continuous Availability Active-Active Data Centers
The Evolution of Business Continuity
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A New Business Continuity Strategy FLEXIBLE
Impact
AVAILABLE
Downtime
Continue to Operate
Move Data Non-Disruptively
OPERATIONAL
Recovery
Rollback to ANY Point-in-Time
0 ∞ 0
Continuous Availability Data Mobility Continuous Data Protection
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DATA MOBILITY = INFINITE FLEXIBILITY
CONTINUOUS AVAILABILITY = ZERO DOWNTIME
Enter EMC VPLEX
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USE CASE #1: Site Failure
Disaster Recovery
Active Site Passive Site
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USE CASE #1: Site Failure
Disaster Recovery
Active Site Passive Site RTO: ~ Hours
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USE CASE #1: Site Failure
Disaster Recovery
Passive Site Active Site RTO: Hours
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SITE 2 SITE 1
Continuous Availability During Site Failure
Distributed Virtual Volumes Distributed Virtual Volumes
ESX Stretch Cluster
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Continuous Availability During Site Failure
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VMware Continuous Availability w/ VPLEX
All inside DCs -> Across DCs – HA (up to 5 ms RTT) – FT (up to 1 ms RTT) – vMotion (up to 10 ms RTT) – DRS (up to 10 ms RTT)
Key deployment details – Stretched layer 2 network – Setup affinity rules for DRS – No requirement for VMware SRM
Data Center 1 Data Center 2
DISTANCE
VMware DRS VMware HA
VMware FT
VMware vMotion
Certified
Distributed Virtual Volume
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Oracle Continuous Availability w/ VPLEX
All inside DCs -> Across DCs – RAC (up to 5 ms RTT) – Oracle Live Migration (up to 5 ms
RTT)
Key deployment details – Stretched layer 2 network – No requirement for ASM mirroring
Data Center 1 Data Center 2
DISTANCE
Certified
Oracle OVM Live Migration
Oracle RAC
Distributed Virtual Volume
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USE CASE #2: Operational Failure
POWER FAILURE
EARTHQUAKE
FIRE WIND STORM
What must you do? - Lengthy RPO to the last known good backup or snap shot
- Lengthy RTO for coordinating recovery from offline sources
- Complex and time consuming
Is there a better way?
FLOODS
TECHNICAL ERRORS
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RecoverPoint for Operational Recovery
Distributed Virtual Volumes
RecoverPoint is: A SAN-based data replication solution which provides operational recovery and 3rd site replication for VPLEX environments
RecoverPoint Provides: Continuous local and remote protection with WAN bandwidth reduction
Journal
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WAN/SAN
How it works
How RecoverPoint Works
RPAs (cluster)
Journal
Local Protection
Remote Protection
Host
Journal
RPAs Splitter
Local Copy
r A r C r B
Remote Copy
r A r B
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RecoverPoint Benefits
CONTINUOUS
12AM 12AM
BACKUP
Provides DVR-like, ANY Point-In-Time access to data
DATA CORRUPTION OCCURS AT 3:28 pm
12+ Hrs
3+ Hrs
8AM 10AM 12PM 2PM 4PM 6PM 8PM 10PM 12AM
3:27PM
SNAPSHOTS
8AM 11PM 1PM 6PM
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Planned Outages: Juggling Act!
TECH REFRESH
RELOCATION
WORKLOAD REBALANCING
MAINTENANCE
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A traditional tech refresh can cause months of planning, downtime and will be expensive. With VPLEX, non-disruptive migrations can save time, money and eliminate downtime and risk.
USE CASE #3: Tech Refresh
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Timeline
Purchase and Install New
Storage
Migration Planning
Weekend 1 Batch A Outage & Data Copy
Weekend 2 Batch B Outage & Data Copy
Weekend 3 Batch C Outage & Data Copy
Weekend 4 Batch D Outage & Data
Copy
Completed Storage Refresh
Migration Time
Traditional Tech Refreshes
Non-reversibility Wastes employee time Long time to value
Expensive professional services engagement Disruptive to applications Remediation required
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LUN2
LUN1
Continuous Availability During Tech Refresh
1. New array is brought in
2. VPLEX discovers new array and devices
3. VPLEX mirrors storage
4. I/O is automatically and non-disruptively directed to the new array
5. Once the new array is fully replicated the old array is removed automatically and without disruption
6. The old device can be removed from VPLEX and rolled out of the data center
LUN2
LUN1
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New Migration Strategy with VPLEX
Timeline
Purchase and Install New
Storage
Migration Planning
Weekend 1 Batch A Outage & Data Copy
Weekend 2 Batch B Outage & Data Copy
Weekend 3 Batch C Outage & Data Copy
Weekend 4 Batch D Outage & Data
Copy
Migration Time
Completed Storage Refresh
Non-Disruptive DATA MOBILITY
During Working Hours
Migration Time
Save money Non-disruptive migrations FOREVER No remediation
Eliminate risk Save employee time Faster Time to Value
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USE CASE #4: Data Center Relocation
Significant Planning High Cost High Risk Highly Disruptive
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SITE 2 SITE 1
Continuous Availability During Data Center Relocation
Distributed Virtual Volumes Distributed Virtual Volumes
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SITE 2 SITE 1
Continuous Availability During Data Center Relocation
Distributed Virtual Volumes
VMware vMotion, HA, FT
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Continuous Availability During Data Center Relocation
Avoid the potential risk, cost and disruption of a data center relocation.
Lead the way with continuous availability; fast, efficient and safe
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Traditional load balancing is • Complex to plan • Slow to implement • Disruptive to applications Leverage distributed virtual volumes to immediately balance loads across arrays.
USE CASE #5: Performance Load Balancing
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When your array is 100% utilized, traditional moves require downtime.
0%
100% I/O load
50%
App1 The applications relying on the data are shut down to relieve I/O pressure.
50% I/O
0%
100% I/O load
50%
50% I/O
App2 App2
Traditional Performance Load Balancing
LUN1 LUN2
Data is replicated to new array • Hosts and array are remediated • Hosts and paths are reconfigured • Hosts are rebooted
Access is restored Assuming the changes didn’t break something else!
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0%
100% I/O load
50%
App1
50% I/O
0%
100% I/O load
50%
50% I/O
App2 App2
Load Balancing with Continuous Availability
Distributed Virtual Volumes
As hosts consume array resources such as space and I/O… VPLEX can non-disruptively relocate work loads Applications access to distributed virtual volumes never changes
• No remediation • No reconfiguration • No reboots • No downtime • And confidence in changes
LUN2
LUN1
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EMC VPLEX for Continuous Availability
Flexibility
Availability
Mobility
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Helping Organizations Make the Journey
EMC Continuous Availability Assessment Service
• Current-State Snapshot
• Application Readiness Assessment
• Continuous Availability Business Case
• Implementation Roadmap & Timeline