Nishan Systems Confidential Addy Lam

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Transcript of Nishan Systems Confidential Addy Lam

  • 1. Extending SANs over IP Networks Addy Lam Professional Services

2. Agenda

  • Nishan, The Company
  • Evolution of Storage Area Network
  • Nishan Vision
  • Why deploy IP Storage and Why go with Nishan?
  • SAN over IP applications
  • Customer Profiles
  • Nishan Products
  • Comparison between Nishan and Cisco Products
  • IP SAN reference material
  • Questions and Answers

3. Nishan, The Company LightSpeed, ComVentures, Dell, Quantum, Siemens, Sun, others Investors Privately Held Company 90+ Employees Staff 3850 North First Street San Jose, CA 95134 (408) 519-3700 Headquarters October 1998 Founded 50 Companies Most Likely to Change the World Top 10 Private Storage Networking Companies 4. The Value and Evolution ofSAN 5. Value of Storage Area Networking

  • Storage Consolidation
    • Reduce administrative overhead
    • Maximize storage utilization
  • High Availability
    • Server clusters accessing shared storage
    • Mirroring terabytes of data/common accessibility
  • Disaster Recovery / Metro and Campus
    • Remote mirroring within the SAN
    • Tape backup / restore

SAN 6. Evolution of Storage Area Networking

    • IP SANs
    • Based on mainstream TCP/IP networks
    • Enables SAN over WAN
    • More robust features; scalability
    • Standards-based (IETF, IEEE, ANSI)
    • Fibre Channel Switched Fabrics
    • Data Center / Departmental SANs; many devices
    • Dedicated Bandwidth per port vs. shared bandwidth
    • Fibre Channel Arbitrated Loop
    • Small departmental SANs; small number of devices
    • Shared bandwidth
    • VAX Clusters / IBM ESCON / SSA
    • Proprietary shared storage solutions
    • Superceded by Open Systems FC

7. Nishan Vision 8. Nishan Vision of SAN Evolution A dispersed SAN would be key for business continuance planning and backup, both of which gained importance after 9/11 --Mark Taylor, Wells Fargo Main Data Center FC Servers FC SAN Data Center Boundary Expands via iSCSI

    • Services Required
    • Unified Management of mixed device types and mixed fabrics
    • Zoning
    • Authentication
    • Security
    • QoS
    • Bandwidth Management
    • Storage Resource Management

Remote Data Center FC SAN IP WAN Disaster Recovery IP-to-FC IP-to-FC FC-to-IP FC-to-IP

    • Departmental servers beyond FC reach
    • Promotes storage consolidation of servers

Departmental Servers- iSCSI NICs IP Campus/MetroNetwork FC-to-IP Regional Office- iSCSI NICs

    • Retail and Banking Applications
    • Primary application isremote backup
    • Cost Effective
      • Converged HBA
      • Leverage existing low-speed links

IP SAN 9. Main Data Center FC Servers Remote Data Center IP WAN Departmental Servers- iSCSI NICs IP Campus/MetroNetwork

    • Departmental servers beyond FC reach
    • Promotes storage consolidation of servers

Regional Office- iSCSI NICs

    • Retail and Banking Applications
    • Primary application isremote backup
    • Cost Effective
      • Converged HBA
      • Leverage existing low-speed links

Disaster Recovery Nishan Vision of SAN Evolution FC SAN Data Center Boundary Expands via iSCSI FC SAN IP SAN

    • Services Required
    • Unified Management of mixed device types and mixed fabrics
    • Zoning
    • Authentication
    • Security
    • QoS
    • Bandwidth Management
    • Storage Resource Management
    • iSNS
    • Multiprotocol Intelligent Fabric
    • SANvergence Manager

FC-to-IP FC-to-IP FC-to-IP FC-to-IP FC-to-IP FC Switch Multi-Protocol Open Standards-based 10. Why IP and Nishan?

  • Distance Independence
    • Allows TRUE Disaster Recovery
    • Distributed storage
  • Scalability
    • Globally distributed Enterprise SANs
    • Large Data Center SANs
  • Interoperability
  • Performance
    • Distance-independent wire-speed IP Storage solutions
    • Nishan enhancement Fast Write, Compression, and Jumbo Frames
  • Lower Total Cost of Ownership
    • Leverage existing infrastructure
    • Investment protection by gradual migration to iSCSI and newer technologies
  • Enhanced Functionality
    • Security: IPSec encryption and authentication
    • Quality of service (QoS)
    • Advanced SAN management tools

11. Why IP and NishanDistance Independence 12. Infrastructure Alternatives for SAN Extension Campus Metro WAN Consolidation / Disaster Recovery / Mirroring

  • Fiber-Channel Extension
    • SONET/SDH, Dark Fiber, DWDM
  • Tunneling (FC Encapsulation)
    • FC-IP
  • Native IP
    • iFCP, iSCSI

Consolidation Remote Backup ? Main Data Center FC SAN FC SAN 13. Fibre Channel SAN Issues - Extensibility

  • Fibre Channel Networks are designed for intra data center environments
    • Not architected with distance or latency in mind
    • Enforce strict reliability and performance requirements
    • Homogeneous FC-2 Transport

Fibre Channel SAN island FC SAN FC SAN Native FCcan notbe transported over most service providers infrastructure. Wide area networks are based on IP or Ethernet andnot FC , therefore, costly point-to-pointDark FiberorDWDMis required to connect FC SAN .FC FC FC FC 14. FC-Extension over Dark Fiber or DWDM 0% 20% 40% 60% 80% 100% 0 50 100 150 200 250 300 350 400 % Link Utilization Fibre Length (Km) Metro WAN Buffer Credits of Single PortRemote Data Center

  • Limited credits of FC switches causes a dramatic decrease in utilization > 30km
  • Can increase distance by robbing FC credits from other ports
  • Disadvantages:
    • Lost switch port density
    • Doesnt fix link-utilization problem (just delays it)
    • Still have FC scalability limits if connecting FC-switches (few as 8 switches in fabric)
    • Service not available in all regions
  • Best positioned between limited FC Targets (2) that are relatively close, and where availability and tariffs not an issue

Buffer Credits of Four PortsPrimary Data Center 15. IP Storage Extends Beyond Fibre Channels Reach 120 100 80 60 40 20 10 20 30 40 50 0 Round Trip Latency, in Milliseconds Throughput, in Megabytes per Second Long Distance IP Storage Performance Results Nishan Systems Lab Testing with Delay Simulation Equipment: 3 NT Servers with FC HBAs, 24 Disk Drives * Fibre Channel performance based on theoretical best case, using fully loaded 2112 byte frames Fibre Channel Switches (64 Credits)* Fibre Channel Switches (16 Credits)* IP Storage Switches Extend Fibre Channels Reach to Greater Distances and Latencies IP Storage Read and Write Operations Fibre Channel Switches can be Used in Low Latency Environments, such as Corporate Data Centers 16. Promontory Project: Coast-to-Coast IP Storage IP Storage Traffic

  • Provides a High-Performance, Distance-Insensitive architecture (SAN/MAN/WAN)
    • Enables high-speed, cost-effective backup operations, using standard high-speed data networks
    • Geographically distant replication sites TRUE disaster recovery
    • Distributed Storage