Strategies for Data Protection - Brocade

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About the AuthorTom Clark is a resident SAN evangelist for Brocade, and represents Brocade inindustry associations, conducts seminars and tutorials at conferences andtrade shows, promotes Brocade storage networking solutions, and acts as acustomer liaison. A noted author and industry advocate of storage networkingtechnology, he is a board member of the Storage Networking IndustryAssociation (SNIA) and Chair of the SNIA Green Storage Initiative. Clark haspublished hundreds of articles and white papers on storage networking andis the author of Designing Storage Area Networks, Second Edition (Addison-Wesley 2003, IP SANs: A Guide to iSCSI, iFCP and FCIP Protocols for StorageArea Networks (Addison-Wesley 2001), and Storage Virtualization:Technologies for Simplifying Data Storage and Management (Addison-Wesley2005).Prior to joining Brocade, Clark was Director of Solutions and Technologiesfor McDATA Corporation and the Director of Technical Marketing for NishanSystems, the innovator of storage over IP technology. As a liaison betweenmarketing, engineering, and customers, he has focused on customereducation and defining features that ensure productive deployment of SANs.With more than 20 years experience in the IT industry, Clark has held technicalmarketing and systems consulting positions with storage networking and otherdata communications companies.viStrategies for Data Protection
ContentsIntroduction ..................................................................................................iPart One .......................................................................................................1Chapter 1: Building the Foundation ........................................................3Storage-Centric vs. Network-Centric SAN Architectures .....................................4Flat SAN Topologies ......................................................................................4Mesh SAN Topologies ...................................................................................7Core-Edge SAN Topologies ...........................................................................9Inter-Fabric Routing ....................................................................................11Virtual Fabrics .............................................................................................13Additional SAN Design Considerations .....................................................14Highly Available Storage .....................................................................................16Local Mirroring (RAID 1) .............................................................................16Other RAID Levels .......................................................................................18RAID as a Form of Storage Virtualization ..................................................20Alternate Pathing and Failover ...................................................................20Additional High Availability Storage Features ...........................................22Storage and Fabric Consolidation .....................................................................22SAN Security ........................................................................................................24Securing the SAN Data Transport ..............................................................25Securing Storage Data Placement ............................................................31Securing the Management Interface ........................................................34Going to the Next Level: The Brocade Data Center Fabric ...............................35Chapter 2: Backup Strategies ............................................................... 37Conventional Local Backup ................................................................................37Backup Fabrics ...........................................................................................42Disk-to-Disk (D2D) Tape Emulation ...........................................................43Disk-to-Disk-to-Tape (D2D2T) .....................................................................44Remote Backup ..................................................................................................45Data Restoration from Tape .......................................................................49Strategies for Data Protectionvii
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STRATEGIES FORDATA PROTECTIONFIRST
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