HP XP P9500 Storage User Manual

HP Storage

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HP XP P9000 Continuous Access Journal for
Mainframe Systems User Guide

Abstract

This guide explains how to use HP XP P9000 Continuous Access Journal for Mainframe 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: AV400-96625
Published: March 2014
Edition: Eleventh

Table of contents

Document Outline

HP XP P9000 Continuous Access Journal for Mainframe Systems User Guide
Contents
1 Continuous Access Journal Z overview
- Continuous Access Journal Z software
- How Continuous Access Journal Z works
- Hardware and software components
- Reference Information
2 Requirements and specifications
- System requirements
- Business Continuity Manager specifications
- Command device
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
  - Host I/O time stamp
- Planning pair volumes
- Disaster recovery considerations
  - Error reporting communications (ERC)
- Sharing volumes with other P9500 software volumes
- Planning Cnt Ac-J Z in multiple P9500s using a consistency group
- Planning for previous models
- Guidelines for preparing systems for Cnt Ac-J Z
  - 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 Using extended consistency groups
- Overview
- Registering journals in an EXCTG
- Splitting, restoring, releasing pairs in an EXCTG
  - Pair-split operation
  - Operations for a specific journal
- Removing journals from an EXCTG
  - Forcibly removing journals
- Using EXCTGs with P9500
6 Configuration operations
- Configuration workflow
- Defining fibre-channel port attributes
- Configuring local and remote systems for Cnt Ac-J Z
- Configuring additional logical paths
- Specifying number of concurrent initial/resync copies
- Registering journal volumes in a journal
7 Pair operations
- Pair operations workflow
- Checking pair status
- Creating the initial copy
- Splitting pairs
- Splitting mirrors
- Creating point-in-time copies
- Restoring pairs
- Resynchronizing mirrors
- Deleting pairs
- Deleting pairs in a mirror
8 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 journal (mirror) status
  - Mirror status definitions
- Monitoring logical path status
- History of pair operations
9 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
10 Disaster recovery operations
- Overview
- General recovery procedures
- Recovery for 3 Cnt Ac-J Z/Cnt Ac-S Z data centers and 3 Cnt Ac-J Z data centers
- Recovery for configurations with Cnt Ac-J Z/Business Copy Z
11 Troubleshooting
- General troubleshooting
- Troubleshooting logical paths
- Troubleshooting by suspension type
- Troubleshooting hardware problems affecting pairs
- Troubleshooting with RAID Manager
- Service information messages (SIMs)
  - Enabling or disabling SIM reporting
  - Clearing SIMs
- Miscellaneous troubleshooting
  - Delta resync operation
  - Suspension among journals
12 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 Z data-center configurations
- Overview
- 3 Cnt Ac-J Z DC cascade configuration
- 3 Cnt Ac-J Z DC multi-target configuration
B Sharing volumes
- Volume types that can be shared with Continuous Access Journal Z
- Cache Residency
- Compatible FlashCopy
- Thin Provisioning
- Virtual LVI
- Auto LUN
C Configurations with Continuous Access Synchronous Z
- Sharing volumes with Continuous Access Synchronous Z
- 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
D Configurations with Business Copy Z
- Overview
- Configurations with Business Copy Z primary volumes
- Configurations with Business Copy Z target 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
- EXCTG Operation window
Glossary
Index