HP XP7 Storage User Manual

HP Storage

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XP7 Continuous Access Journal for
Mainframe Systems User Guide

Abstract

This document describes and provides instructions for using Continuous Access Journal Z to plan, configure, and perform pair
operations on the HP XP7 Storage.

HP Part Number: TK911-96001
Published: May 2014
Edition: First

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XP Racks

Table of contents

Document Outline

XP7 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
  - SAID values for CESTPATH/YKBLDPTH
- Command device
3 Planning volumes, XP7 systems
- Plan and design workflow
- Assessing business requirements for data recovery
  - Determining your RPO
- Write-workload
  - Measuring write-workload
- Data transfer speed considerations
  - RAID group configuration
  - Fibre-channel port configuration
- Sizing journal volumes
- Planning journals
- Planning journal volumes
  - Host I/O time stamp
- Planning pair volumes
- Disaster recovery considerations
  - Error reporting communications (ERC)
- Sharing volumes with other XP7 software volumes
- Planning Cnt Ac-J Z in multiple XP7s using a consistency group
  - Establishing connections between multiple secondary systems
  - Multiple journals per RAID Manager 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
- Cable length and switch requirements
- Supported data path configurations
5 Using extended consistency groups
- Overview
  - Guaranteed Consistency of Data Update Sequence
  - Consistency time
    - Restoring data to previous time stamps after failure
- 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
  - Removing all journals from an EXCTG
  - Forcibly removing journals
- Using EXCTGs with different model storage systems
- Restoring journals manually
6 Cnt Ac-J Z configuration operations
- Configuration workflow
- Defining fibre-channel port attributes
- Configuring primary and secondary systems for Cnt Ac-J Z
- Configuring additional remote paths
- Creating journals and adding journal volumes
- Assigning an MP blade to a journal
7 Cnt Ac-J Z pair operations
- Pair operations workflow
- Checking pair status
- Creating the Cnt Ac-J Z initial copy
- Splitting Cnt Ac-J Z pairs
- Splitting mirrors
- Creating point-in-time copies
- Resynchronizing Cnt Ac-J Z pairs
- Resynchronizing mirrors
- Deleting Cnt Ac-J Z pairs
- Deleting pairs in a mirror
8 Monitoring the Cnt Ac-J Z system
- Monitoring pair activity, status, license capacity
  - Pair status definitions
- Monitoring Cnt Ac-J Z pair synchronous rate
- Monitoring Cnt Ac-J Z operations history
  - Operation descriptions
- Saving pair information to a text file
- Monitoring journal (mirror) status
  - Mirror status definitions
- Monitoring Cnt Ac-J Z remote connections, path status
9 Maintaining the Cnt Ac-J Z system
- Pair maintenance
- Journal and mirror maintenance
- Remote path maintenance
- Managing power-off for systems and network devices
10 Cnt Ac-J Z disaster recovery operations
- Overview
- General recovery procedures
- Recovery for 3 Cnt Ac-J Z/Cnt Ac-S Z data centers
- Recovery for Cnt Ac-J Z/BC Z configurations
11 Cnt Ac-J Z troubleshooting
- General troubleshooting
- Remote paths status probelms
- Troubleshooting by suspension type
- Troubleshooting hardware problems affecting pairs
- Troubleshooting with RAID Manager
- Service information messages (SIMs)
  - Enabling SIMs reporting to a host
  - SIMs reference codes
- 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 Sharing Cnt Ac-J Z volumes
- Volume types that can be shared with Continuous Access Journal Z
- Cache Residency Z
- Compatible FlashCopy
- Thin Provisioning Z
- Resource Partition
- External Storage
- Virtual LVI
- Auto LUN
B 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
C Configurations with Business Copy Z
- Overview
- Configurations with Business Copy Z primary volumes
- Configurations with Business Copy Z secondary volumes
- Pair status and data currency
D Cnt Ac-J Z GUI reference
- Journals window
- Journal Volumes window
- Journal Properties window
- Create Journals wizard
  - Create Journals window
  - Select Journal Volumes dialog box
  - Confirm window
- Assign Journal Volumes wizard
  - Assign Journal Volumes window
  - Confirm window
- Delete Journals window
- Force Remove Journals from EXCTG window
- Edit Journal Options wizard
  - Edit Journal Options window
  - Confirm window
- Assign MP blade wizard
  - Assign MP blade window
  - Confirm window
- Edit Mirror Options wizard
  - Edit Mirror Options window
  - Confirm window
- Assign Remote Command Devices wizard
  - Assign Remote Command Device window
  - Confirm window
- Release Remote Command Devices window
- EXCTG Properties window
- Add Journals wizard
  - Add Journal window
  - Select Journals window
  - Confirm window
- Remove Journal wizard
  - Remove Journal window
  - Confirm window
- Initialize EXCTGs window
- View Pair Synchronous Rate window
- View Pair Properties window
- Split Pair wizard
  - Split Pair window
  - Confirm window
- Split Mirrors wizard
  - Split Mirrors window
  - Confirm window
- Resync Pairs wizard
  - Resync Pairs window
  - Confirm window
- Resync Mirrors wizard
  - Resync Mirrors window
- Delete Pairs wizard
  - Delete Pairs window
- Force Delete Pairs window
- Delete Mirrors wizard
  - Delete Mirrors window
  - Confirm window
- Edit Pair Options wizard
  - Edit Pair Options window
  - Confirm window
Glossary
Index