Understanding san ( storage area network )


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Understanding san ( storage area network )

  1. 1. Storage Area Network (SAN)
  2. 2. SAN Definition SAN components Fibre Channel Network Host Bus Adapter (HBA) Enterprise Storage A SAN is an intelligent network environment in which storage resources are deployed and managed independently of any single server . . . .
  3. 3. SAN Components Fibre Channel (FC) Network Fibre Channel Network - Host Bus Adapter (HBA) - Enterprise Storage A high performance (200 MB/sec) redundant network made up of fibre channel switches for deploying and sharing enterprise resources
  4. 4. SAN Components Host Bus Adapter (HBA) Fibre Channel Network - Host Bus Adapter (HBA) - Enterprise Storage Similar to a SCSI adapter card or a LAN network interface card (NIC), provides the server with a FC interface to the SAN
  5. 5. SAN Components Enterprise Storage Fibre Channel Network - Host Bus Adapter (HBA) - Enterprise Storage Any storage device with FC interface that is interoperable with the switches, HBAs, servers and server operating systems in the network
  6. 6. User Requirements Increased storage capacity Support for multiple storage/server architectures Continuous/High availability Cross-platform solutions Why SAN ?
  7. 7. Why SAN ? User Requirements Support higher levels of I/O activity Higher performance backup/restore Data sharing Secure Assets
  8. 8. SAN Benefits Performance FC @ 200MB/sec vs SCSI @ 40MB/sec Availability Redundancy, non-disruptive upgrades Scalability Add or re-deploy storage as needed
  9. 9. SAN Benefits Flexibility New, advanced SAN devices can easily be added as older devices wear out or become obsolete Backup/restore/archive Move data at FC speed vs LAN (up to 100x) Centralized storage management Manage SAN as a single entity (shared resources)
  10. 10. SAN Benefits Reduced costs Storage management, capacity overhead Data sharing Access to any data on SAN Secure Assets Multiple layers of security to ensure data integrity
  11. 11. SAN Benefits Remote Replication Geographical data replication for disaster recovery SAN to SAN Copy Copy data from disk to disk geographically using SAN technology
  12. 12. Solaris AIX HP-UX NT/ W2K LAN (Ethernet) SAN (Fibre Channel) Open Systems Servers SAN Servers – Operating Systems NIC NIC NIC NIC HBA HBA HBA HBA FABRIC SWITCHES
  13. 13. SAN Storage – Performance Connectivity Hundreds of 2-Gbit/sec Fibre Channel interfaces allow thousands of MB/sec aggregate data rates Reliability/Availability Fully redundant components allow for non-disruptive maintenance and upgrades Scalability 28 TB disk storage now installed and growing 28 GB cache, can scale to 32 GB cache memory 9960 Storage
  14. 14. The Network – Brocade Switches Performance/Connectivity Hundreds of 2-Gbit/sec ports provide SAN connectivity to HDS storage and Enterprise-class tape Reliability/Availability Brocade is the market leader in FC switch technology Multiple switches provide redundancy for SAN components
  15. 15. SAN Storage – Backup/Recovery Veritas Net Backup Lan-free, server-free backup, directly from SAN storage through the switch to Enterprise-class StorageTek Automated Tape Library Performance Backup data moves at fibre channel speed, up to 100 times faster than LAN backup, 5 times faster than SCSI
  16. 16. SAN Replication – Disaster Recovery LAN (Ethernet)Primary SAN Site
  17. 17. SAN Replication – Disaster Recovery Alternate SAN Site LAN (Ethernet)
  18. 18. SAN Replication – Disaster Recovery …are linked together via the USDA Wide Area Network. The link is an asynchronous channel extension for distance and secured with encryption.