Storage Area Network Operation - Amazon Web Services PDF
Preview Storage Area Network Operation - Amazon Web Services
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
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