HP XP P9500 Storage User Manual

Hp xp p9000 continuous access journal user guide

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HP XP P9000 Continuous Access Journal
User Guide

Abstract

This guide explains how to use HP XP P9000 Continuous Access Journal Software to replicate data between local and remote
HP XP P9000 disk arrays and to achieve disaster tolerance with maximum application performance. Topics include setting up
remote copy connections, configuring the storage system, creating and monitoring remote copies, recovering from a disaster,
and troubleshooting. The intended audience is a storage system administrator or authorized service provider with independent
knowledge of HP XP P9000 disk arrays and the HP Remote Web Console.

HP Part Number: AV400-96626
Published: March 2014
Edition: Eleventh

Table of contents

Document Outline

HP XP P9000 Continuous Access Journal User Guide
Contents
1 Continuous Access Journal overview
- Continuous Access Journal software
- How Continuous Access Journal works
- Hardware and software components
- Reference Information
2 Requirements and specifications
- System requirements
3 Planning volumes, P9500 systems
- Plan and design workflow
- Assessing business requirements for data recovery
  - Determining your RPO
- Write-workload
  - Measuring write-workload
- Sizing journal volumes
- Planning journals
- Data transfer speed considerations
  - RAID group configuration
  - Fibre-channel port configuration
- Planning journal volumes
- Planning pair volumes
  - Maximum number of pairs allowed
    - Calculating maximum number of pairs
  - Maximum initial copy operations and priorities
- Disaster recovery considerations
  - Host failover software
- Sharing volumes with other P9500 software volumes
- Planning Cnt Ac-J in multiple P9500s using a consistency group
  - Multiple journals per RAID Manager consistency group
  - 3DC configurations using 3 Cnt Ac-J sites
- Planning for previous models
- Guidelines for preparing systems for Cnt Ac-J
  - System option modes
4 Planning the data path
- Data path design workflow
- Sizing bandwidth
  - Five sizing strategies
  - Calculating bandwidth
- Planning ports for data transfer
  - Port types
  - Determining required number of ports
- Cable length and switch requirements
- Supported data path configurations
5 Configuration operations
- Configuration workflow
- Defining fibre-channel port attributes
- Configuring local and remote systems for Cnt Ac-J
- Configuring additional logical paths
- Specifying number of concurrent initial/resync copies
- Registering journal volumes in a journal
6 Pair operations
- Pair operations workflow
- Checking pair status
- Creating the initial copy
- Splitting pairs
- Splitting mirrors
- Creating point-in-time copies
- Resynchronizing pairs
- Resynchronizing mirrors
- Deleting pairs
- Deleting pairs in a mirror
7 Monitoring the system
- Monitoring pair activity and status
  - Pair status definitions
- Saving pair information to a text file
- Monitoring copy operations data, I/O with Usage Monitor
  - Selecting data to be graphed
  - Manipulating graph, save data
- Monitoring I/O and hardware performance with Performance Monitor
- Monitoring journal (mirror) status
  - Remote Web Console mirror status definitions
  - RAID Manager mirror status definitions
- Monitoring logical path status
- History of pair operations
8 Maintaining the system
- Pair maintenance—changing the pair-split option
- Journal and mirror maintenance
- Logical path maintenance
- Managing power-off for systems and network devices
9 Disaster recovery operations
- Overview
- General recovery procedures
- Recovery for 3 Cnt Ac-J data centers
  - Recovery for 3 Cnt Ac-J DC cascade configuration
  - Recovery for 3 Cnt Ac-J DC multi-target configuration
- Recovery for 3 Cnt Ac-J/Cnt Ac-S data centers and 3 Cnt Ac-J data centers
- Recovery for configurations with Cnt Ac-J/Business Copy
10 Troubleshooting
- General troubleshooting
- Troubleshooting logical paths
- Troubleshooting by suspension type
- Troubleshooting hardware problems affecting pairs
- Troubleshooting with RAID Manager
- Service information messages (SIMs)
- Miscellaneous troubleshooting
  - Delta resync operation
  - Suspension among journals
11 Support and other resources
- Contacting HP
  - Subscription service
  - Documentation feedback
- Related information
  - HP websites
- Conventions for storage capacity values
- Typographic conventions
A 3 Cnt Ac-J data-center configurations
- Overview
- 3 Cnt Ac-J DC cascade configuration
- 3 Cnt Ac-J DC multi-target configuration
B Sharing volumes
- Volume types that can be shared with Continuous Access Journal
- Cache Residency
- Data Retention
- Thin Provisioning
- External Storage Access Manager (ESAM)
- LUN Expansion
- LUN Manager
- Fast Snap and Snapshot
  - Configuration with FS and SS volumes
  - Sharing FS and SS volumes in 3DC configurations
- Virtual LUN
- Auto LUN
C Configurations with Continuous Access Synchronous
- Sharing volumes with Continuous Access Synchronous
- 3DC cascade configuration
  - Prerequisite information for 3DC cascade
  - Procedure for setting up 3DC cascade
- 3DC multi-target configuration
  - Prerequisite information for 3DC multi-target
  - Procedure for setting up 3DC multi-target
- Delta resync configuration
- 2 Data center configuration
  - Prerequisite information for 2DC configuration
    - Specifications and restrictions for Continuous Access Journal pair operations
    - Specifications and restrictions for Continuous Access Synchronous pair operations
  - Procedure for a 2DC configuration
D Configurations with Business Copy
- Overview
- Configurations with Business Copy primary volumes
- Configurations with Business Copy secondary volumes
- Pair status and data currency
E GUI reference
- Journal Operation window
- Journal Detail window
- Change Journal Option dialog box
- Change Mirror Option dialog box
- Edit Journal Volumes dialog box
- Pair Operation window
- DKC Operation window
- Usage Monitor window
- History window
- Optional Operation window
Glossary
Index