IBM TotalStorage: SAN Product, Design, and Optimization Guide

IBM TotalStorage: SAN Product, Design, and Optimization Guide

by Jon Tate, Jim Kelly, Pauli Rämö, Leos Stehlik
Released September 2005
Publisher(s): IBM Redbooks
ISBN: None

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Book description

In this IBM Redbooks publication, we visit some of the core components and technologies that underpin a storage area network (SAN). We cover some of the latest additions to the IBM SAN portfolio, discuss general SAN design considerations, and build these considerations into a selection of real-world case studies.

We realize that there are many ways to design a SAN and put all the components together. In our examples, we have incorporated the major considerations that you need to think about, but still left room to maneuver on the SAN field of play.

This book focuses on the SAN products that are generally considered to form the backbone of the SAN fabric today: switches and directors. With this backbone, development has prompted discrete approaches to the design of a SAN fabric. The bespoke vendor implementation of technology that is characteristic in the design footprint of switches and directors means that we have an opportunity to answer challenges in different ways.

We will show examples where strength can be built into the SAN using the network and the features of the components themselves. Our aim is to show that you can customize your SAN fabric according to your preferences.

Table of contents

  1. Figures (1/2)
  2. Figures (2/2)
  3. Notices
    1. Trademarks
  4. Preface
    1. The team that wrote this redbook
    2. Become a published author
    3. Comments welcome
  5. Chapter 1: Introduction
    1. Beyond disaster recovery
      1. Whose responsibility is it?
      2. The Internet brings increased risks
      3. Planning for business continuity
    2. Using a SAN for business continuance
      1. SANs and business continuance
    3. SAN business benefits
      1. Storage consolidation and sharing of resources
      2. Data sharing
      3. Nondisruptive scalability for growth
      4. Improved backup and recovery
      5. High performance
      6. High availability server clustering
      7. Improved disaster tolerance
      8. Allow selection of best of breed storage
      9. Ease of data migration
      10. Reduced total costs of ownership
      11. Storage resources match e-business enterprise needs
  6. Chapter 2: SAN fabric components
    1. Fibre Channel technology sub-components
    2. Fibre Channel interconnects
      1. Fibre Channel transmission rates
      2. Small Form Factor Pluggable Module
      3. Gigabit Interface Converters
      4. Gigabit Link Modules
      5. Media Interface Adapters
      6. 1x9 transceivers
      7. Fibre Channel adapter cable
      8. Host Bus Adapters
      9. Loop Switches
      10. Switches
      11. Directors
      12. Fibre Channel routers
      13. Switch, director and router features
      14. Test equipment
  7. Chapter 3: SAN features
    1. Fabric implementation
      1. Blocking
      2. Ports
      3. Fabric topologies
      4. Point-to-point
      5. Arbitrated loop
      6. Switched fabric
      7. Inter Switch Links (1/2)
      8. Inter Switch Links (2/2)
      9. Adding new devices
    2. Classes of service
      1. Class 1
      2. Class 2
      3. Class 3
      4. Class 4
      5. Class 5
      6. Class 6
      7. Class F
      8. Communication
    3. Buffers
    4. Addressing
      1. World Wide Name
      2. WWN and WWPN
      3. 24-bit port address
      4. Loop address
      5. FICON addressing
    5. Fabric services
      1. Management services
      2. Time services
      3. Name services
      4. Login services
      5. Registered State Change Notification
    6. Logins
      1. Fabric login
      2. Port login
      3. Process login
    7. Path routing mechanisms
      1. Spanning tree
      2. Fabric Shortest Path First
      3. What is FSPF?
      4. How does FSPF work?
      5. How does FSPF help?
      6. What happens when there is more than one shortest path?
      7. Can FSPF cause any problems?
      8. FC-PH-2 and speed
      9. 1, 2 and 4 Gbps and beyond
      10. FC-PH, FC-PH-2, and FC-PH-3
      11. Layers
    8. Zoning
      1. Hardware zoning
      2. Software zoning
    9. Trunking
      1. Frame filtering
      2. Oversubscription
      3. Congestion
      4. Information units
      5. The movement of data
      6. Data encoding
    10. Ordered set, frames, sequences, and exchanges
      1. Ordered set
      2. Frames
      3. Sequences
      4. Exchanges
      5. Frames
      6. In order and out of order
      7. Latency
      8. Heterogeneousness
      9. Open Fiber Control
    11. Fibre Channel Arbitrated Loop (FC-AL)
      1. Loop protocols
      2. Fairness algorithm
      3. Loop addressing
      4. Private devices on NL_Ports
    12. Factors and considerations
      1. Limits
      2. Security
      3. Interoperability
    13. Standards
    14. SAN industry associations and organizations
      1. Storage Networking Industry Association
      2. Fibre Channel Industry Association
      3. SCSI Trade Association
      4. International Committee for Information Technology Standards
      5. INCITS technical committee T11
      6. Information Storage Industry Consortium
      7. Internet Engineering Task Force
      8. American National Standards Institute
      9. Institute of Electrical and Electronics Engineers
      10. Distributed Management Task Force
      11. List of evolved Fibre Channel standards
    15. SAN software management standards
    16. Standards-based management initiatives
      1. The Storage Management Initiative
      2. Open storage management with CIM
      3. CIM Object Manager
      4. Simple Network Management Protocol
      5. Application Program Interface
      6. In-band management
      7. Out-of-band management
      8. Service Location Protocol
      9. Tivoli Common Agent Services
      10. Managment of growing SANs
      11. Application management
      12. Data management
      13. Resource management
      14. Network management
      15. Device Management
      16. Fabric management methods
      17. Common access methods
      18. The SNIA Shared Storage Model
      19. Long distance links
      20. Backup windows
      21. Restore and disaster recovery time
    17. IBM Eserver zSeries and S/390
      1. IBM Eserver pSeries
      2. IBM Eserver xSeries
      3. IBM Eserver iSeries
    18. Security
      1. Fibre Channel security
    19. Security mechanisms
      1. Encryption
      2. Authorization database
      3. Authentication database
      4. Authentication mechanisms
      5. Accountability
      6. Zoning
      7. Isolating the fabric
      8. LUN masking
      9. Fibre Channel Authentication Protocol
      10. Persistent binding
      11. Port binding
      12. Port type controls
      13. IP security
    20. Best practices
    21. Virtualization
    22. Solutions
    23. Emerging technologies
    24. iSCSI
    25. iFCP
    26. FCIP
  8. Chapter 4: SAN disciplines
    1. Floor plan
      1. SAN inventory
      2. Cable types and cable routing
      3. Planning considerations and recommendations
      4. Structured cabling
      5. Data center fiber cabling options
      6. Cabinets
      7. Phone sockets
      8. Environmental considerations
      9. Location
      10. Sequence for design
    2. Naming conventions
      1. Servers
      2. Storage devices
      3. Cabinets
      4. Trunk cables
      5. SAN fabric components
      6. Cable labels
      7. Zones
    3. Documentation
    4. Power-on sequence
    5. Security
      1. General
      2. Physical access
      3. Remote access
    6. Education
      1. SAN administrators
      2. Skills
      3. Certification
  9. Chapter 5: Host Bus Adapters
    1. Selection criteria
      1. IBM supported HBAs
      2. Special features
      3. Quantity of servers
      4. HBA parameter settings
  10. Chapter 6: SAN design considerations
    1. What do you want to achieve with a SAN?
      1. Storage consolidation
      2. High availability solutions
      3. LAN-free backup
      4. Server-free backup
      5. Server-less backup
      6. Disaster recovery
      7. Flexibility
      8. Goals
      9. Benefits expected
      10. TCO/ROI
      11. Investment protection
    2. Existing resources needs and planned growth
      1. Collecting the data about existing resources
      2. Planning for future needs
      3. Platforms and storage
    3. Select the core design for your environment
      1. Selecting the topology
      2. Scalability
      3. Performance
      4. Redundancy and resiliency
    4. Host connectivity and Host Bus Adapters
      1. Selection criteria
      2. Multipathing software
      3. Storage sizing
      4. Management software
    5. Director class or switch technology (1/4)
    6. Director class or switch technology (2/4)
    7. Director class or switch technology (3/4)
    8. Director class or switch technology (4/4)
    9. General considerations
      1. Ports and ASICs
      2. Class F
      3. Domain IDs
      4. Zoning
      5. Physical infrastructure and distance
    10. Interoperability issues in the design
      1. Interoperability
      2. Standards
      3. Legacy equipment and technology
      4. Heterogeneous support
      5. Certification and support
      6. OEM/IBM mixes
    11. Pilot and test the design
  11. Chapter 7: IBM TotalStorage SAN Switch L10
    1. Product description
      1. Specifications
      2. Management
    2. Fibre Channel Arbitrated Loop (FC-AL)
    3. Loop switch operation
    4. FC-AL Active Trunking
    5. Interoperability
      1. Connecting the L10 to a fabric switch
    6. Managing Streaming Data Flows
    7. Part Numbers
  12. Chapter 8: IBM TotalStorage SAN b-type family
    1. Product description
      1. IBM TotalStorage SAN16B-2 fabric switch
      2. IBM TotalStorage SAN32B-2 fabric switch
      3. IBM TotalStorage SAN Switch M14
      4. IBM TotalStorage SAN256B director
      5. IBM TotalStorage SAN 16B-R
    2. Switch features
      1. Advanced WEB TOOLS
      2. Advanced Performance Monitoring
      3. Advanced Security
      4. Advanced Zoning
      5. Extended Fabric
      6. Fabric Manager
      7. Fabric Watch
      8. ISL Trunking
      9. Dynamic Path Selection
      10. Remote Switch
    3. Advanced Security
      1. Host-to-Switch Domain
      2. Administrator-to-Security Management Domain
      3. Security Management-to-Fabric Domain
      4. Switch-to-Switch Domain
      5. Fabric configuration servers
      6. Management access controls
      7. Device connection controls
      8. Switch connection controls
      9. Fibre Channel Authentication Protocol
    4. ISL
      1. ISLs without trunking or dynamic path selection
      2. ISLs with trunking
      3. Dynamic Path Selection
      4. Switch count
      5. Distributed fabrics
    5. FICON
      1. FICON servers
      2. Intermixed FICON and FCP
      3. Cascaded FICON support
    6. Fabric management
      1. User accounts and Role-Based Access Control
      2. WEB TOOLS
      3. Advanced Performance Monitoring
      4. Fabric Watch
      5. Fabric Manager
      6. SCSI Enclosure Services
    7. Zoning
      1. Preparing to use zoning
      2. Increasing availability
      3. Advanced zoning terminology
      4. Zoning types
      5. Zone configuration
      6. Zoning administration
    8. Switch interoperability
  13. Chapter 9: IBM TotalStorage SAN m-type family
    1. IBM SAN components
    2. Product description
      1. Machine type and model number changes
      2. IBM TotalStorage SAN12M-1 Fabric Switch
      3. IBM TotalStorage SAN16M-2 Fabric Switch
      4. IBM TotalStorage SAN24M-1 Fabric Switch
      5. IBM TotalStorage SAN32M-1 Fabric Switch
      6. IBM TotalStorage SAN32M-2 Fabric Switch
      7. IBM TotalStorage SAN140M Director (1/2)
      8. IBM TotalStorage SAN140M Director (2/2)
      9. IBM TotalStorage SAN256M director (1/2)
      10. IBM TotalStorage SAN256M director (2/2)
      11. IBM TotalStorage SAN04M-R
      12. IBM TotalStorage SAN16M-R
      13. IBM eServer BladeCenter switch module
      14. IBM TotalStorage SANC40M
    3. Fabric planning
      1. Dual fabrics and directors
      2. Server-to-storage ratio
      3. ISLs
      4. Load balancing
      5. Principal switch selection
      6. Special considerations
      7. Open Fabric
      8. Supported devices, servers and HBAs
    4. Features of directors and switches
      1. Element Manager
      2. FICON Management Server
      3. Full Volatility Option
      4. Open Systems Management Server
      5. Open Trunking
      6. Preferred Path
      7. SANtegrity Binding
      8. Feature activation
    5. FICON support
    6. Fabric management
      1. In-band management
      2. Out-of-band management
      3. EFC Server
      4. EFC Manager
      5. Troubleshooting
      6. SANpilot interface
      7. Command line interface
      8. SNMP
    7. Zoning
      1. Configuring zones
      2. Zoning and LUN masking
      3. Persistent binding
      4. Blocking a port
      5. Merging fabrics
    8. Performance
    9. Security
      1. Restricting access to those that need it
      2. Controlling access at the switch
      3. SANtegrity Authentication
    10. Licensing
      1. Warranties
  14. Chapter 10: Cisco switches and directors
    1. Product description
      1. MDS 9120 and 9140 Multilayer Switches
      2. MDS 9216A Multilayer Switch
      3. Cisco MDS 9216i Multilayer Switch
      4. MDS 9506 Multilayer Director
      5. MDS 9509 Multilayer Director
    2. MDS 9000 family features
      1. Supported attachments
      2. Port addressing and port modes
      3. Fibre Channel IDs and Persistent FC_ID
      4. Supported port types
    3. Supervisor module
      1. Control and management
      2. Optional modules (1/2)
      3. Optional modules (2/2)
    4. MDS 9000 SAN-OS 2.1
    5. Fabric management
      1. Cisco MDS 9000 Fabric Manager
      2. In-band management and out-of-band management
      3. Using the setup routine
      4. Controlling administrator access with users and roles
      5. Accessing Cisco Fabric Manager
      6. Connecting to a supervisor module
      7. Licensed feature packages
      8. PortChanneling
      9. Virtual SAN (VSAN) (1/2)
      10. Virtual SAN (VSAN) (2/2)
      11. Trunking
      12. Quality of Service (QoS)
      13. Fibre Channel Congestion Control (FCC)
      14. Call home
    6. Security management
      1. Switch access security
      2. User authentication
    7. Troubleshooting features
      1. Troubleshooting with Fabric Manager
      2. Monitoring network traffic using SPAN
      3. Monitoring traffic using Fibre Channel analyzers
    8. FICON
    9. Zoning
      1. Zone features
      2. Zone membership
      3. Configuring a zone
      4. Zone enforcement
      5. Zone sets
      6. Default zone
      7. LUN zoning
    10. Switch interoperability mode
      1. Interoperability matrix
  15. Chapter 11: General solutions
    1. Objectives of SAN implementation
    2. Servers and host bus adapters
      1. Path and dual-redundant HBA
      2. Multiple paths
    3. Software
    4. Storage
    5. Fabric
      1. The fabric-is-a-switch approach
      2. The fabric-is-a-network approach
    6. High-level fabric design
    7. Definitions
      1. Port formulas
    8. Our solutions
  16. Chapter 12: SAN event data gathering tips
    1. Overview
    2. Hosts
      1. AIX
      2. HP-UX
      3. Linux
      4. Microsoft Windows
      5. Novell NetWare
      6. SUN Solaris
    3. Switches
      1. SAN Switch 2031/2032 (McDATA)
      2. SAN Switch 2062 (Cisco)
      3. SAN Switch 2109 (Brocade)
      4. SAN Switch 2042 and 2045 (CNT)
    4. Storage
      1. IBM TotalStorage DS Family disk subsystem
      2. IBM TotalStorage Enterprise Storage Server
      3. 3583 Tape Library and SDGM
  17. Chapter 13: IBM TotalStorage SAN Switch L10 solutions
    1. Performance solutions
    2. Availability solutions
      1. Dual loop
    3. Clustering solutions
      1. Two-node clustering
  18. Chapter 14: IBM TotalStorage SAN b-type family solutions
    1. Performance solutions
    2. Availability solutions
      1. Single fabric
      2. Dual fabric
    3. Clustering solutions
      1. Two-node clustering
      2. Multi-node clustering
    4. Secure solutions
  19. Chapter 15: IBM TotalStorage SAN m-type family solutions
    1. Performance solutions
      1. Components
      2. Checklist
      3. Performance
      4. Scalability
      5. Availability
      6. Security
      7. What if failure scenarios
    2. Availability solutions
      1. Dual fabric
      2. Components
      3. Checklist
      4. Performance
      5. Scalability
      6. Security
      7. Availability
      8. What if failure scenarios
    3. Dual sites
      1. Components
      2. Checklist
      3. Performance
      4. Scalability
      5. Security
      6. What if failure scenarios
    4. Clustering solutions
      1. Components
      2. Checklist
      3. Performance
      4. Scalability
      5. Security
      6. What if failure scenarios
    5. Secure solutions
      1. Components
      2. Checklist
      3. Security
      4. Performance
      5. Scalability
      6. What if security scenarios
    6. Loop solutions
      1. Components
      2. Checklist
      3. Performance
      4. Scalability
      5. Security
      6. What if failure scenarios
      7. Switch capable tape drives
  20. Chapter 16: Cisco solutions
    1. Performance solutions
      1. Components
      2. Checklist
      3. Performance
      4. Scalability
      5. Availability
      6. Security
      7. What if failure scenarios
    2. Availability solutions
      1. Dual fabric
      2. Dual sites
    3. Clustering solutions
      1. Two-node clustering
      2. Multi-node clustering
    4. Secure solutions
      1. Zoning security solution
    5. Loop solutions
      1. Using the translative loop port
  21. Chapter 17: Case studies
    1. Case study 1: Company One
      1. Company one profile
      2. High-level business requirements
      3. Current infrastructure
      4. Detailed requirements
      5. Analysis of ports and throughput
    2. Case study 2: Company Two
      1. Company profile
      2. High-level business requirements
      3. Current infrastructure
      4. Detailed requirements
      5. Analysis of ports and throughput
    3. Case study 3: ElectricityFirst company
      1. Company profile
      2. High level business requirements
      3. Infrastructure requirements
      4. Analysis of ports and throughput
    4. Case Study 4: Company Four
      1. Company profile
      2. High-level business requirements
      3. Current infrastructure
      4. Detailed requirements
      5. Analysis of ports and throughput
    5. Case study 5: Company Five
      1. Company profile
      2. High-level business requirements
      3. Current infrastructure
      4. Detailed requirements
      5. Analysis of ports and throughput
    6. Case study 6: Company Six
      1. Company profile
      2. High-level business requirements
      3. Current infrastructure
      4. Detailed requirements
      5. Analysis of ports and throughput
  22. Chapter 18: IBM TotalStorage SAN b-type case study solutions
    1. Case study 1: Company One
      1. Switch design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
      9. Core switch design
    2. Case study 2: Company Two
      1. Design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
    3. Case study 3: ElectricityFirst
      1. Solution design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
    4. .Case study 4: Company Four
      1. Design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
    5. Case study 5: Company Five
      1. Design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
    6. Case study 6: Company Six
      1. Design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
  23. Chapter 19: IBM TotalStorage SAN m-type case study solutions
    1. Case study 1: Company One
      1. Design using Directors
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
      9. Design using switches
      10. Performance
      11. Availability
      12. Security
      13. Distance
      14. Scalability
      15. What if failure scenarios
      16. Manageability and management software
    2. Case study 2: Company Two
      1. Design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
    3. Case study 3: ElectricityFirst
      1. Solution design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
    4. Case study 4: Company Four
      1. Design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
    5. Case study 5: Company Five
      1. Design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
    6. Case study 6: Company Six
      1. Design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
  24. Chapter 20: Cisco case study solutions
    1. Case Study 1: Company One
      1. Design using directors
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
      9. Design using switches
      10. Performance
      11. Availability
      12. Security
      13. Distance
      14. Scalability
      15. What if failure scenarios
      16. Manageability and management software
    2. Case study 2: Company Two
      1. Design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
    3. Case study 3: ElectricityFirst
      1. Solution design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
    4. Case study 4: Company Four
      1. Design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
    5. Case study 5: Company Five
      1. Design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
    6. Case study 6: Company Six
      1. Design
      2. Performance
      3. Availability
      4. Security
      5. Distance
      6. Scalability
      7. What if failure scenarios
      8. Manageability and management software
  25. Chapter 21: Channel extension concepts
    1. Channel extenders
    2. Amplifiers
    3. Repeaters
    4. Multiplexers
    5. Time-Division Multiplexers
    6. Wave Division Multiplexing
      1. Coarse Wave Division Multiplexing (CWDM)
      2. Dense Wave Division Multiplexing (DWDM)
      3. DWDM components
      4. Optical add/drop multiplexers
    7. DWDM topologies
      1. Point-to-point
      2. Linear
      3. Ring
    8. Factors that affect distance
      1. Terminology
      2. Protocol definitions
      3. Light or link budget
      4. Buffer credits
      5. Fiber quality
      6. Cable types
      7. Droop
      8. Latency
      9. Bandwidth sizing
      10. Hops
      11. Physical location of repeaters
      12. Standards
  26. Chapter 22: IBM TotalStorage SAN b-type family channel extension solutions
    1. Brocade-compatible channel extension devices
      1. Cisco channel extension devices
      2. ADVA FSP 2000 channel extension devices
      3. Ciena CN 2000 channel extension devices
      4. Nortel Optical Metro 5200
    2. Consolidation to remote disk less than 10Km away
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
    3. Business continuance
    4. Synchronous replication up to 10 km apart
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
    5. Synchronous replication up to 300 Km apart
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
    6. Multiple site ring DWDM example
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
    7. Remote tape vaulting
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
    8. Long distance disaster recovery over IP
      1. Customer environment and requirements
      2. The solution
      3. Normal operation
      4. Failure scenarios
  27. Chapter 23: IBM TotalStorage SAN m-type family channel extension solutions
    1. McDATA-compatible channel extension devices
      1. Cisco channel extension devices
      2. ADVA FSP 2000 channel extension devices
      3. Ciena CN 2000 channel extension devices
      4. Nortel Optical Metro 5200
    2. Consolidation to remote disk less than 10Km away
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
    3. Business continuance
    4. Synchronous replication up to 10 km apart
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
    5. Synchronous replication up to 300 Km apart
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
    6. Multiple site ring DWDM example
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
    7. Remote tape vaulting
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
    8. Long distance disaster recovery over IP
      1. Customer environment and requirements
      2. The solution
      3. Normal operation
      4. Failure scenarios
  28. Chapter 24: Cisco channel extension solutions
    1. Cisco channel extension devices
      1. Cisco MDS 90000 with CWDM transceivers
      2. Cisco 2062-CW1
      3. Cisco ONS 15530, 15540
    2. Consolidation to remote disk less than 10Km away
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
      4. Use of VSAN
    3. Business continuance
    4. Synchronous replication up to 10 km apart
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
      4. Use of VSAN
    5. Synchronous replication up to 300 Km apart
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
      4. Use of VSAN
    6. Multiple site ring DWDM example
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
      4. Use of VSAN
    7. Remote tape vaulting
      1. Buffer credits
      2. Do we have enough ISLs and enough ISL bandwidth?
      3. Cabling and interface issues
      4. Use of VSAN
    8. Disaster recovery with FCIP
      1. Existing systems
      2. IT improvement objectives
      3. New technology deployed and DR site established
      4. Global Mirroring established to the DR site
  29. Chapter 25: SAN best practices
    1. Scaling
      1. How to scale easily
      2. How to avoid downtime
      3. Adding a switch or director
      4. Adding ISLs
      5. Performance monitoring and reporting
    2. Know your workloads
    3. Port placement
      1. IBM TotalStorage b-type switches and directors
      2. IBM TotalStorage m-type switches and directors
      3. Cisco switches and directors
    4. WWNs
    5. Tools
    6. Documentation
    7. Configurations
    8. Avoiding common SAN setup errors
    9. Zoning
      1. General zoning recommendations
      2. IBM TotalStorage b-type switches and directors
      3. IBM TotalStorage m-type switches and directors
      4. Cisco switches and directors
  30. Glossary (1/5)
  31. Glossary (2/5)
  32. Glossary (3/5)
  33. Glossary (4/5)
  34. Glossary (5/5)
  35. Related publications
    1. IBM Redbooks
      1. Other resources
    2. Referenced Web sites
    3. How to get IBM Redbooks
      1. IBM Redbooks collections
  36. Index (1/5)
  37. Index (2/5)
  38. Index (3/5)
  39. Index (4/5)
  40. Index (5/5)
  41. Back cover

Product information

  • Title: IBM TotalStorage: SAN Product, Design, and Optimization Guide
  • Author(s): Jon Tate, Jim Kelly, Pauli Rämö, Leos Stehlik
  • Release date: September 2005
  • Publisher(s): IBM Redbooks
  • ISBN: None