Storage Area Network Operation - Amazon Web Services

126 Pages·2015·5.79 MB·English

by  Mark Allen

Storage Area Network
Extension Design and
Operation
Mark Allen - Manager Storage Technical Marketing
BRKSAN-2449
Agenda
• SAN Extension Deployment Challenges
• Principles of SAN Extension Design
• SAN Extension Network Solution Options
• SAN Extension Advanced Features
• Operation / Troubleshooting Reference
Why Do We Need SAN Extension?
SAN Extension is an integral component of SAN Business Solutions:
• Disaster Recovery - Protecting Data Through Offsite Data Replication and
Backup
• Business Continuance - Restoration of Business After a Failure
• Business Resilience - Continued Operation of Business During a Failure
• Cloud Storage – Leveraging the Cloud for Data Storage
SAN Extension
Deployment Challenges
Meeting Business Objectives
Recovery Point and Recovery Time
Last Backup or Disaster
Point Where Data Strikes Systems Recovered
in Usable State and Operational
Time
How Far Back? How Long to Recover?
Smaller RPO/RTO
Recovery • Higher $$$ Recovery
Point • Replication Time
• Hot standby systems
Larger RPO/RTO
• Lower $$$
• Tape backup/restore
• Cold standby system
How Far is Enough?
Global
Regional
< 400km
Secondary Primary
DR Site
Data Center Data Center
Metro
< 50km
Disasters are characterized by their impact
Local
Local, metropolitan, regional, global
1–2 km
Fire, flood, earthquake, attack
Fundamental Question: Is the recovery / backup site
within the threat radius you’re protecting against?
Is Your Data Safe?
Data Protection Also Includes Security
• Who has access to your data and your data network?
• Network Access Control (NAC)
• Role Based Access Control (RBAC)
• How is your data being protected on the network?
• Link Encryption on the network
• How do you protect your data media?
• Media encryption
Reference: CiscoLive! 2010 -BRKSAN-2892: Implementing Security for SANs
Other Challenges
• What type of Network and Bandwidth is available?
Native Fibre Channel, Fibre Channel over Ethernet or IP based
• What impact will latency have on your Applications? Replication? Backups?
Performance impact due to latency can limit design options
• How much High Availability is built into the design
Do you design around 1 point of failure? 2 points? Can you over design HA?
Adding It All Up
• Data is the most valuable commodity in the data center
• Businesses require comprehensive business plans for Business Continuity (BC)
and Disaster Recovery (DR)
• SAN Extension is the foundation to a successful BC/DR plan