Storage Area Network SAN

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Storage Area Network(SAN)
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SAN Definition
A SAN is an intelligent network environment in
which storage resources are deployed and managed
independently of any single server . . . .

• SAN components
• Fibre Channel Network
• Host Bus Adapter (HBA)
• Enterprise Storage

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SAN Components
Fibre Channel Network - Host Bus Adapter (HBA) -
Enterprise Storage
Fibre Channel (FC) Network
A high performance (200 MB/sec) redundant network
made up of fibre channel switches for deploying
and sharing enterprise resources
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SAN Components
Fibre Channel Network - Host Bus Adapter (HBA) -
Enterprise Storage
Host Bus Adapter (HBA)
Similar to a SCSI adapter card or a LAN network
interface card (NIC), provides the server with a
FC interface to the SAN
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SAN Components
Fibre Channel Network - Host Bus Adapter (HBA) -
Enterprise Storage
Enterprise Storage
Any storage device with FC interface that is
interoperable with the switches, HBAs, servers
and server operating systems in the network
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User Requirements
Why SAN ?

• Increased storage capacity
• Support for multiple storage/server architectures
• Continuous/High availability
• Cross-platform solutions

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User Requirements
Why SAN ?

• Support higher levels of I/O activity
• Higher performance backup/restore
• Data sharing
• Secure Assets

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SAN Benefits

• Performance
• FC _at_ 200MB/sec vs SCSI _at_ 40MB/sec
• Availability
• Redundancy, non-disruptive upgrades
• Scalability
• Add or re-deploy storage as needed

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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)

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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

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SAN Benefits

• Remote Replication
• Geographical data replication for disaster
  recovery
• SAN to SAN Copy
• Copy data from disk to disk geographically using
  SAN technology

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SAN Servers Operating Systems
Open Systems Servers
HBA
SAN (Fibre Channel)
NIC
NT/ W2K
FABRIC SWITCHES
HBA
HBA
HBA
AIX
HP-UX
Solaris
NIC
NIC
NIC
LAN (Ethernet)
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SAN Storage
9960 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

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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

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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

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SAN Replication Disaster Recovery
LAN (Ethernet)
Primary SAN Site
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SAN Replication Disaster Recovery
Alternate SAN Site LAN
(Ethernet)
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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.
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NITC Offering
NITC is offering SAN as a total Enterprise
solution for your immediate and long term IT
needs.
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Partnering for Success
888-USE-NITC www.ocio.usda.gov/nitc