Document Outline

• HP 3PAR Remote Copy Software User Guide
• Part I Setting the Foundation for Remote Copy
  • 1 Planning Your Remote-Copy Setup Strategy
    • Setup Instructions and Resources
    • Requirements
      • General Requirements
      • General Considerations
      • General System Restrictions
      • General Software Restrictions
      • Remote Copy and Virtual Domains
  • 2 Selecting a Remote-Copy Configuration
    • M-to-N Remote-Copy Configurations
      • 1-to-1 Configuration
        • Unidirectional 1-to-1 Configuration
        • Bidirectional 1-to-1 Configuration
      • N-to-1 Configuration
      • 1-to-N Configuration
      • M-to-N Configuration
    • Synchronous Long Distance Configuration
  • 3 Selecting Network Connections
    • Network Connection Types
      • IP Networks
      • Fibre Channel Networks
      • Fibre Channel over IP Networks
  • 4 Gathering Setup Information
  • 5 Setting the Transport Layer
    • Transport Layer Considerations
    • Setting Up Remote Copy over IP
      • RCIP Initial Remote-Copy Pair
      • RCIP Initial Remote-Copy Pair Worksheet
      • RCIP Additional Remote-Copy Pairs Worksheet
      • Configuring Ports for RCIP
      • Setting Up the Remote-Copy Interface for RCIP
      • Setting the Gateway
      • Verifying That the Servers Are Connected
      • Checking RCIP Link Throughput and Latency
      • Increasing MTU
    • Setting Up Remote Copy over Fibre Channel
      • RCFC Remote-Copy Pair Worksheet
      • Configuring Ports for RCFC
      • Setting Up Dedicated Node Pairs for RCFC
      • Setting Up Remote-Copy Interface for RCFC
      • Checking RCFC Link Throughput and Latency
    • Setting Up RCFC over an IP Network
• Part II Setting Up the Remote-Copy Servers
  • 6 Setting Up M-to-N Remote Copy
    • M-to-N Remote-Copy Considerations
      • 1-to-1 Remote-Copy Considerations
      • N-to-1 Remote-Copy Considerations
      • 1-to-N Remote-Copy Considerations
    • M-to-N Remote-Copy Examples
      • 1-to-1 Remote-Copy Example
      • Example Remote-Copy Pair for N-to-1 Setup
      • Example 1-to-N Remote-Copy Setup
    • Verifying Connectivity between Remote-Copy Pairs for M-to-N Setup
    • Setting Up the Primary System for M-to-N Remote Copy
    • Setting Up the Backup System for M-to-N Remote Copy
    • Checking the Links between Systems for M-to-N Remote Copy
    • Verifying That Virtual Volumes Are Created for M-to-N Remote Copy
    • Creating Volume Groups for M-to-N Remote Copy
    • Selecting an Initial Replication Method for M-to-N Remote Copy
    • Starting Initial Replication for M-to-N Remote Copy
  • 7 Setting Up SLD Remote Copy
    • SLD Remote-Copy Considerations
    • Verifying Connectivity between Remote-Copy Pairs for SLD Setup
    • Setting Up the Primary System for SLD Remote Copy
    • Setting Up the Backup Systems for SLD Remote Copy
    • SLD Remote-Copy Example
    • Checking the Links between Systems for SLD Remote Copy
    • Verifying That Virtual Volumes Are Created for SLD Remote Copy
    • Creating Volume Groups for SLD Remote Copy
    • Starting Initial Replication for SLD Remote Copy: Copying Data Directly from Primary Volume Groups
    • Failover and Failback Behavior of Individual Remote-Copy Groups in SLD Configuration
      • Normal SLD Operation
      • SystemA-to-SystemB Failover for an Individual Remote-Copy Group
      • SystemA-to-SystemC Failover in SLD Remote-Copy Configuration
  • 8 Unidirectional Configuration
    • Example Unidirectional Remote-Copy Setup
    • Verifying Connectivity between Remote-Copy Pairs for Unidirectional Setup
    • Setting Up the Primary System for Unidirectional Remote Copy
    • Setting Up the Backup System for Unidirectional Remote Copy
    • Checking the Links between Systems for Unidirectional Remote Copy
    • Verifying That Virtual Volumes Are Created for Unidirectional Remote Copy
    • Creating Volume Groups for Unidirectional Remote Copy
    • Selecting an Initial Replication Method for Unidirectional Remote Copy
    • Starting Initial Replication for Unidirectional Remote Copy: Copying Data Directly from Primary Volume Groups
  • 9 Bidirectional Configuration
    • Example Bidirectional Setup
    • Setting Up the Systems for Bidirectional Remote Copy
    • Creating Volume Groups for Bidirectional Remote Copy
    • Selecting an Initial Synchronization Method for Bidirectional Remote Copy
    • Starting Initial Synchronization for Bidirectional Remote Copy: Copying Data Directly from Primary Volume Groups
• Part III Managing Remote Copy
  • 10 Stopping, Starting, or Removing Remote Copy
    • Stopping and Starting Remote-Copy Groups
    • Stopping and Restarting Remote Copy
    • Removing Remote Copy Completely
  • 11 Viewing Remote-Copy System Information
    • How Remote Copy Tracks Synchronization Details
      • Tracking Synchronous Volume Groups
      • Tracking Asynchronous Periodic Volume Groups
    • Viewing Synchronization Task Information
      • Viewing More Detail for a Synchronization Task
      • Viewing Earlier Synchronization Tasks
    • Task Management Commands for Remote-Copy Synchronizations
  • 12 Remote-Copy Pairs and Targets
    • Remote-Copy Pairs
    • Overview of Targets
    • Target Definitions
    • Remote-Copy Target System
      • System Roles and Direction of Data Flow
      • Changing the Direction of Data Flow
      • System Roles and Bidirectional Configurations
  • 13 Remote-Copy Links
    • Sending Links
      • One Sending Link per Node per Target
      • Links per Remote-Copy Pair
      • Links per Multiple Remote-Copy Pairs
    • Receiving Links
  • 14 Working with Virtual Volumes
    • Creating Remote-Copy Virtual Volumes
    • Converting Standard Virtual Volumes
    • Growing Virtual Volumes
    • Renaming Virtual Volumes
    • Virtual Volumes and CPGs
      • Common Provisioning Groups
        • How CPGs Allocate Space for Snapshots
        • How CPGs Allocate Space for Virtual Volumes
        • Basic Information about CPGs
        • Creating a CPG
      • Virtual Volumes Used with Remote Copy
        • Thinly-Provisioned Virtual Volumes
        • Fully Provisioned Virtual Volumes
  • 15 Working with Volume Groups
    • Why Use Volume Groups
    • How Volume Groups Work
    • Creating Automatic Remote-Copy VV Sets
    • Rules for Forming Volume Groups
    • How Volume Groups Are Named
    • Rules for Adding Snapshots to Volume Groups
    • How Volume Groups Are Organized on the Remote-Copy Pair
    • Natural Direction of Replication
    • Linking Virtual Volumes in Volume Groups
      • Unidirectional Volume Groups
      • Bidirectional Volume Groups
    • Changing the Remote-Copy Mode for a Volume Group
    • Manually Resynchronizing Volume Groups
    • Changing Secondary Volume Groups to Primary
      • Changing One Volume Group
      • Changing All Volume Groups on a System
    • Setting Volume Group Policies
      • Automatically Restarting Volume Groups
      • Generating Alerts for Slow Resynchronization of Asynchronous Periodic Volume Groups
    • Volume Group Modes
      • Overview of Volume Group Modes
      • Synchronous Mode
        • Advantages of Synchronous Mode
        • Latency in Synchronous Mode
      • Asynchronous Periodic Mode
        • Advantages of Asynchronous Periodic Mode
    • Synchronization
      • Types of Synchronization
      • Limits on Volumes that Concurrently Synchronize
      • Asynchronous Periodic Mode Volume Groups
        • Full Synchronization
        • Resynchronization
        • Setting Up Resynchronization for Asynchronous Periodic Mode
          • Setting the Synchronization Period
          • Considerations for Setting the Synchronization Period
      • Synchronous Mode Volume Groups
        • Full Synchronization
        • Resynchronization
  • 16 Optimizing Performance
    • Avoiding RCIP Throughput Issues during Initial Synchronization
    • Optimizing RCIP Synchronization Speed over Distances
    • Optimizing RCIP Throughput by Increasing MTU Size
    • Limiting Throughput
      • Limiting Throughput for Asynchronous Periodic Volume Groups
      • Removing Throughput Limits
    • Troubleshooting RCIP Autonegotiation Issues
    • Distribution of Host Writes over RCIP GigE Links
  • 17 HP 3PAR Peer Persistence with Transparent Failover
    • HP 3PAR Quorum Witness Requirements
    • HP 3PAR Quorum Witness Components
    • HP 3PAR Peer Persistence
      • Manual Transparent Switchover
      • Automatic Transparent Failover
    • HP 3PAR Peer Persistence Quorum
      • VMware vSphere Metro Storage Cluster Configuration
      • Handling Automatic Transparent Failover
      • Link and Communication Failure Scenarios
        • Communication Failure—Array to Array
        • Communication Failure—Site 1 to Quorum Witness
        • Communication Failure—Site 1 to Quorum Witness and Site 1 to Site 2
        • Communication Failure—Site 2 to Quorum Witness
        • Communication Failure—Site 2 to Quorum Witness and Site 1 to Site 2
        • No Communication on the Part of Quorum Witness with Site 1 and Site 2
        • No Communication among Quorum Witness, Site 1, and Site 2
    • Path Management Policies
    • Peer Persistence Coexistence with Other Remote-Copy Groups
  • 18 Using Tape for Initial Synchronization and Backup
  • 19 Managing VASA-connected Remote-Copy Groups and Volumes
    • Creating Remote-Copy Groups with Associated Local and Remote CPGs
    • Setting Associated Local and Remote CPGs for Remote-Copy Groups
    • Automatically Creating Target Volumes on the Secondary System
    • Automatically Deleting Target Volumes on the Secondary System
    • Coordinated Manual Grow over Remote Copy
    • Configuring ESX Host Personas
  • 20 Error Handling
    • Synchronization States
    • Timeouts for Remote-Copy Failure
      • Timeouts and Transient Network Problems
    • Failure of a Single Link
    • Target failure
      • Target Failure and Synchronous Volume Groups
      • Restarting Synchronous Volume Groups after Link Recovery
      • Target Failure and Asynchronous Periodic Volume Groups
      • Resynchronizing Asynchronous Periodic Volume Groups after Link Recovery
    • Failure of a Storage System
      • Failure of a Primary System
      • Failure of a Backup System
    • Write Errors
      • Write Errors on the Primary System
      • Write Errors on the Backup System
        • Write Errors for Synchronous and Asynchronous Periodic Volume Groups
    • Read Errors
      • Read Errors during Initial Synchronization
      • Read Errors during Synchronization after Restart of Synchronous Volume Groups
      • Read Errors during Resynchronization of Asynchronous Periodic Volume Groups
• Part IV Recovering from Disaster
  • 21 Using Peer Persistence for Non-disruptive Failover in 1-to-1 Remote Copy in Geocluster Environments
    • System Information during Normal Operation
      • Primary System (System1)
      • Secondary System (System2)
    • System Information during Failover
    • Performing a Non-disruptive Failover
      • Switchover
      • Troubleshooting Non-disruptive Failover
  • 22 Disaster Recovery for 1-to-1 Configurations
    • System Information during Normal Operation
      • Primary System (System1)
      • Backup System (System2)
    • System Information during Failover for 1-to-1 Configurations
      • Synchronous Mode for 1-to-1 Configurations
      • Asynchronous Periodic Mode for 1-to-1 Configurations
      • Example Output after Primary System Failure for 1-to-1 Configurations
    • Recovering from Disaster for 1-to-1 Configurations
      • Failover in 1-to-1 Remote-Copy Configurations
      • Recovery in 1-to-1 Remote-Copy Configurations
  • 23 Disaster Recovery for M-to-N Configurations
    • Disaster Recovery for N-to-1 Configurations
      • System Information during Normal Operation for N-to-1 Configurations
        • Backup System (System1) for N-to-1 Configurations
        • First Primary System (System2)
        • Second Primary System (System3)
      • System Information during Failover for N-to-1 Configurations
        • Synchronous Mode for N-to-1 Configurations
        • Asynchronous Periodic Mode for N-to-1 Configurations
        • Example Output after Primary System Failure for N-to-1 Configurations
      • Recovering from Disaster for N-to-1 Configurations
        • Failover for N-to-1 Configurations
        • Recovery for N-to-1 Remote-Copy Configurations
    • Disaster Recovery for 1-to-N Configurations
      • System Information during Normal Operation for 1-to-N Configurations
        • Primary System (System1) for 1-to-N Configurations
        • First Backup System (System2) for 1-to-N Configurations
        • Second Backup System (System3) for 1-to-N Configurations
      • System Information during Failover for 1-to-N Remote-Copy Configurations
        • Synchronous Mode for 1-to-N Configurations
        • Asynchronous Periodic Mode for 1-to-N Configurations
        • Example Output after Primary System Failure for 1-to-N Configurations
      • Recovering from Disaster for 1-to-N Configurations
        • Failover for 1-to-N Configurations
        • Recovery for 1-to-N Configurations
  • 24 Disaster Recovery for SLD Configurations
    • System Information during Normal Operation for SLD Configurations
      • Primary System (SystemA) Information for SLD Configurations
      • Synchronous Backup System (SystemB) Information for SLD Configurations
      • Asynchronous Periodic Backup System (SystemC) Information for SLD Configurations
    • System Information during Failover for SLD Configurations
      • Synchronous Mode System Information during Failover
      • Asynchronous Periodic Mode System Information during Failover
      • Example Output after Primary System Failure
      • Stages of Disaster Recovery in SLD Remote-Copy Configurations
    • Failing Over to the Synchronous Backup System
      • Failover in SLD Remote-Copy Configuration
      • Recovery of SLD Remote-Copy Configuration
    • Failing Over to the Asynchronous Periodic Backup System (with Data Transfer)
      • Failover in Asynchronous Periodic SLD Remote-Copy Configurations
      • Recovery of Asynchronous Periodic Mode in SLD Remote-Copy Configurations
    • Failing Over to the Asynchronous Periodic Backup System (No Data Transfer)
      • Failover
      • Recovery
    • Handling Backup System Failure
    • Handling Primary System Failure
• Part V Reference
  • 25 Quick Setup Guide
    • Quick Setup: RCIP Transport Layer
    • Quick Setup: RCFC Transport Layer
    • Quick Setup: Remote-Copy Configurations
    • Quick Setup: Unidirectional Remote Copy
    • Quick Setup: Bidirectional Remote Copy
    • Quick Setup: Synchronous Long Distance Remote Copy
  • 26 Quick Disaster Recovery Guide
    • Quick Recovery: 1-to-1 and M-to-N Remote-Copy Configurations
    • Quick Recovery: Synchronous Long Distance Configurations
  • 27 Using Remote Copy Commands
    • About the Remote-Copy Commands
    • Issuing Remote-Copy Commands
  • 28 HP 3PAR Quorum Witness Deployment
    • Starting the vSphere Client
    • Configuring HP 3PAR Quorum Witness
      • Accessing the HP 3PAR Quorum Witness
      • Configuring a Static IP Address
    • Quorum-Witness CLI Commands
      • Creating a Quorum Witness
      • Starting a Quorum Witness
      • Stopping a Quorum Witness
      • Removing a Quorum Witness
      • Auto Failover Policies
    • Quorum Troubleshooting
      • Quorum Status Qualifier
      • Logs
  • 29 Remote-Copy Snapshots
    • Overview of Snapshots
      • Why Use Snapshots
      • Volume Space Considerations
    • Snapshots in Synchronous Mode
      • Snapshots and Initial Synchronization Failure
      • Snapshots and Resynchronization
      • Snapshots and Resynchronization Failure in Synchronous Mode
      • Snapshots Taken before or during Disaster Recovery
        • If the Backup System Fails
        • If the Primary System Fails
    • Snapshots in Asynchronous Periodic Mode
      • Snapshots Taken during Initial Synchronization
      • Snapshots Taken during Resynchronization
      • Snapshots and Resynchronization Failure in Asynchronous Periodic Mode
      • Snapshots Taken before or during Disaster Recovery
  • 30 Support and Other Resources
    • Contacting HP
    • HP 3PAR documentation
    • Typographic conventions
    • HP 3PAR branding information
  • 31 Documentation feedback
• Glossary
• Index