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Hitachi Universal Replicator for IBM /OS User’s Guide
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Troubleshooting
Specification
Install
Error Corrective Action
Timer Type Option
Configuring Journal Groups
Setup Procedure
Command Device
Disaster Recovery Procedure
Journal Restore
Page 234
Image 234
7-10
Chapter 7 Using Extended Consistency Groups
Hitachi Universal Replicator for IBM /OS User’s Guide
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Contents
Hitachi Universal Storage Platform
Hitachi Universal Replicator for IBM /OS User’s Guide
ALL Rights Reserved
Page
Contents
Preparing for Universal Replicator z/OS Operations
System Option Mode
Using the Universal Replicator for z/OS GUI
Configuring Journal Groups
10-1
Preface
Document Revision Level
Intended Audience
Product Version
Changes in this Revision
Document Organization
Referenced Documents
Chapter Description
Document Conventions
Icon Meaning Description
Convention for Storage Capacity Values
Getting Help
Comments
Mail
Overview of Universal Replicator for IBM z/OS
Hitachi Universal Replicator
Features
Heterogeneous Storage System Support
Benefits
Ensure Business Continuity
Business Solutions
Hitachi Universal Replicator for IBM /OS User’s Guide
About Universal Replicator Operations
Functionality Overview
Journal Obtain
UR Components for Fibre-Channel Connection
Journal Restore
Components
Journal Copy
URz components
Connection Configuration of Plural Secondary Storage systems
Main and Remote Control Units
USP V Storage Systems
Universal Replicator for z/OS→ Software
Logical DKC Ldkc
System and number 00 and 01 is assigned to each Ldkc
Remote Copy Connections
Data Volume Pair
Initiator Ports and RCU Target Ports
Specifications of Journal Volumes
Journal Volume
Number of Journal Volumes
Emulation Types for Journal Volumes
Restrictions on Journal Volumes
RAID configuration
Journal Volume Areas
Journal Group
Extended Consistency Groups
Specifications of Extended Consistency Groups
Specifications
Consistency time
Host I/O Time-Stamp
Error Reporting Communications ERC
Remote Copy Operations
Initial Copy Operations
Update Copy Operation
Journal Group Operations
Timer Type Option
Journal Group Operations
Read and Write I/O Operations During URz Operations
Secondary Data Volume Write Option
Secondary Data Volume Read Option
Difference Management
Metadata Information
Journal Processing
Journal Processing at the Primary Storage System
Type Description
Journal Processing at the Secondary Storage System
Types of Journal
Storing Journal at the Secondary Storage System
Hitachi Universal Replicator for IBM /OS User’s Guide
S1 to S4 Sequence number
URz Delta Resync Operation
Journal Obtain in TCz Synchronous Secondary Site
As shown
Switching the Master Journal Group of URz
When a failure occurs on the primary site
Primary site B
Hitachi Universal Replicator for IBM /OS User’s Guide
Pair Status
Hitachi Universal Replicator for IBM /OS User’s Guide
URz Data Volume Pair Status
Pair Status Description
Suspend Types
Consistency Status for Suspended URz Secondary Data
Volumes
Suspend Types
Applies to Description
Suspension Condition
URz Suspension Condition
Suspension Condition Detected by URz Pairs to be Suspended
Business Continuity Manager Support
Package Port
Said Values for the Path Link Parameter Front CL1
Port
Location
Said Values for the Path Link Parameter Rear CL2
About Universal Replicator Operations
Command Device
Page
Hitachi Universal Replicator for IBM /OS User’s Guide
Preparing for Universal Replicator z/OS Operations
Requirements and Restrictions for URz
System Requirements
Page
One-to-One Volume Copy Operations
Disk Track Format
Supported Emulation Types
Duplicate Volser Volume Serial Number
Volume Types
Emulation Support type
Supported Data Volume and Journal Volume
Type
Specifications of Volumes that can Form Pairs
Journal Volume Specifications
Support specifications
RAID Level Configuration of URz
Maximum Number of Pairs
Number of Cylinders According to Each Emulation Type
H6588-L 32,760 NF80-E 770 NF80-J 885 NF80-K 655
32,768 20,071 028
Journal Group Specifications
10 Journal Group Volume Specifications
Accessing URz Primary Data Volume and Secondary Data Volume
Duplicate Volumes
Cache and Nonvolatile Storage NVS
Installing the Hardware
Setting up Remote Copy Connections
URz Remote Copy Connection Configuration
Direct Remote Copy Connections
Using Multiple Primary and Secondary Storage Systems
Enabling the URz Options
Primary host
Hitachi Universal Replicator for IBM /OS User’s Guide
Primary host can add time stamps Secondary site Primary site
Hitachi Universal Replicator for IBM /OS User’s Guide
Connections Between Secondary Storage Systems
An Example of Connections among Secondary Storage Systems
Hitachi Universal Replicator for IBM /OS User’s Guide
Can the Volumes be
11 Whether Non-URz Volumes Can Be Used as URz Volumes
Functions and Volumes
Interoperability with Other Products and Functions
Can the Volumes be Used as Primary
Data Volumes?
Used as Journal
Virtual LVI
Cache Residency Manager
ShadowImage for z/OS
12 Host Pair Status Reporting for URz/SIz Shared Volumes
13 Data Currency of a Shared URz/SIz Volume
Shared URz secondary data volume and SIz S-VOL
SIz URz
12 Restoring a SIz S-VOL Step
14 Restoring a SIz S-VOL Step
Restoring a SIz S-VOL Step
17 Restoring a SIz S-VOL Step
21 Overview of Split Operation
Page
TCz Synchronous 3DC Cascading Configuration
22 3DC Cascading Configuration Combining URz with TCz
Basic Behavior
23 Basic Behavior in 3DC Cascading Configuration
Hardware Configuration
Setup Procedure
Transferring Business Tasks Back to the Primary Site
TCz Synchronous 3DC Multi-target Configuration
Secondary site for URz
USP V storage system in the primary site
USP V storage system in the TCz Synchronous secondary site
Requirements for Performing Delta Resync Operation
Hitachi Universal Replicator for IBM /OS User’s Guide
Page
Tasks
VOL/Prm Data VOL Primary site
Synchronous pair
Pair
Volume
Operation
Business Tasks Back to the Primary Site
Make sure that all the pairs belonging to the journal group
Primary siteTCz Sync Primary site TCz Sync
VOL/Prm Data VOL
Page
VOL/Prm Data VOL
Why Planning is Necessary?
Planning of Journal Volumes
Computing Required Data Transfer Speeds for Journal Volumes
What to Consider for Planning
Temporary increase
Arranging Journal Volumes
Computing the Journal Volume Capacity
MCU
Planning Data Transfer Speed before Reversing Data Volumes
Bandwidth for Data Transfer Paths
DKC Journal Transfer Speed
System Option Mode
16 System Option Mode
Mode
Volume Pair that Can Create Pairs
34 LDKC00 that Can Configure Logical Path Between USP
Page
Hitachi Universal Replicator for IBM /OS User’s Guide
USP V supervisor DKC
Hitachi Universal Replicator for IBM /OS User’s Guide
JNL VOL
Hitachi Universal Replicator for IBM /OS User’s Guide
Using the Universal Replicator for z/OS GUI
Journal Operation Window
Journal Operation Window
Journal group in initial status
Initial
Stop Hold HoldFail Ure
Edit JNL Volumes
Pair Operation Window
Pair Operation Window
Hitachi Universal Replicator for IBM /OS User’s Guide
List in the Pair Operation Window
Sub Indicates either of the following statues
Page
Add Pair
DKC Operation Window
If Universal Replicator for z/OS has not been started
DKC Operation Window
Displaying Information about Remote Storage Systems
List Displays information about remote storage systems
Num of Path indicates the number of logical paths
Displaying Information about Logical Paths
Logical Paths Information in the DKC Operation Window
Port Information in the DKC Operation Window
Page
Usage Monitor Window
Usage Monitor Window
History Window
History Window
Page
Hitachi Universal Replicator for IBM /OS User’s Guide
Page
Hitachi Universal Replicator for IBM /OS User’s Guide
Optional Operation Window
10 Optional Operation Window
Change System Option
Exctg Operation Window
11 Exctg Operation Window
12 Tree of the Exctg Operation Window
Displaying a List of Extended Consistency Groups
Add Jnlg to Exctg
13 Extended Consistency Groups in the Exctg Operation Window
14 Storage Systems in the Exctg Operation Window
15 Storage Systems in the Exctg Operation Window
Hitachi Universal Replicator for IBM /OS User’s Guide
Configuring Storage Systems and Logical Paths
Reviewing Storage System and Logical Paths
Page
Hitachi Universal Replicator for IBM /OS User’s Guide
Configuring Port Attributes
Configuring Storage Systems and Logical Paths
Page
Configuring Storage System Options
System Option Window
DKC
Page
Add DKC Window
Changing Options for Logical Paths and Storage Systems
DKC Option Window
Adding Logical Paths
Add Path Window
Viewing the Status of Logical Paths
DKC Status Window
Logical Path Status
Status Remarks
This status indicates one of the following
Deleting Logical Paths
Managing SIMs
Enabling or Disabling SIM Reporting
Clearing Service Information Messages SIMs
When Power Stops Unexpectedly
When the Power is Removed from the Primary Storage System
When the Power is Removed from the Secondary Storage System
Turning Off Power Intentionally
When the Power is Removed from Network Relay Devices
When You Power Off the Primary Storage System
When You Power Off the Secondary Storage System
Hitachi Universal Replicator for IBM /OS User’s Guide
When You Power Off Network Relay Devices
Hitachi Universal Replicator for IBM /OS User’s Guide
Configuring Journal Groups
Reviewing Administrator Tasks for Managing Journals
Registering Journal Volumes in a Journal Group
Hitachi Universal Replicator for IBM /OS User’s Guide
Edit JNL Volumes Window
Add
Page
Configuring Journal Groups
Deleting Journal Volumes from a Journal Group
Status of Journal Group
Mirror ID
Hitachi Universal Replicator for IBM /OS User’s Guide
Displaying Detailed Information about a Journal Group
JNL Group Detail Window
Initial a journal group in initial status
Page
HaltAccept
Stopping , Stop , and finally Initial
Changing Options for a Journal Group
Change JNL Option Window
Mode Description
System Option Modes
449 On The SVP does not detect blocked paths
Hitachi Universal Replicator for IBM /OS User’s Guide
Deleting a Journal Group
Splitting a Mirror Suspending a copy operation
Suspend Pair Window
Restoring a Mirror Resuming a copy operation
Page
Deleting Data Volumes from a Mirror Ending a copy operation
Using Extended Consistency Groups
Configuring primary Exctg
Registering Journal Groups in an Extended Consistency Group
Page
Add JNL Group Window
Page
Hitachi Universal Replicator for IBM /OS User’s Guide
Removing Journal Groups from an Extended Consistency Group
Primary host Primary Exctg
Page
Hitachi Universal Replicator for IBM /OS User’s Guide
Performing Pair Operations
Performing Pair Operations
Display Filter Window
Hitachi Universal Replicator for IBM /OS User’s Guide
Creating a Pair of Data Volumes
Hitachi Universal Replicator for IBM /OS User’s Guide
Add Pair Window
Hitachi Universal Replicator for IBM /OS User’s Guide
Page
Hitachi Universal Replicator for IBM /OS User’s Guide
Displaying Detailed Information about a Pair of Data Volumes
Detailed Information Window
Page
System
Page
Saving Pair Status Information into a Text File
Example of an Exported Text File
Page
Changing Options for a Data Volume Pair
Change Pair Option Window
Splitting a Pair of Data Volumes
Suspend Pair Window
Hitachi Universal Replicator for IBM /OS User’s Guide
Restoring a Pair of Data Volumes
Resume Pair Window
Page
Releasing a Pair of Data Volumes
Delete Pair Window
Recovering a Pinned Track
Recovering a Pinned Track on a Data Volume
Recovering a Pinned Track on a Journal Volume
Hitachi Universal Replicator for IBM /OS User’s Guide
Usage Monitor Operations
Reviewing the Usage Monitor Window
Starting and Stopping Usage Monitoring
Displaying the Usage Monitor Graph
Display Item Window Remote Copy I/O Statistics
Statistic Description
JNL
Saving Monitoring Data in Text Files
Saving Operation History into a Text File
Example of a Exported File
Usage Scenarios
Creating a Point-in-Time Copy of Data Volumes
Performing Disaster Recovery Operations
Preparing for Disaster Recovery Operations
File and Database Recovery Procedures
Switching Operations to the Secondary Site
Transferring Operations Back to the Primary Site
Resuming Normal Operations at the Primary Site
Consistency of Data Update Sequence When a Disaster Occurs
10-7
Disaster Recovery Procedure
Disaster Recovery in a 3DC Cascading Configuration
10-10 Usage Scenarios
Recovering from Failures in the Primary Site
Operation Primary Data
Establishing 3DC Delta Resync Operations
Primary site
Configuration for 3DC Delta Resync Operations
Primary UR-TC 151#10031 TC target 166#10079
10-16 Usage Scenarios
Normal Operations
Performing Failover
Ykquery Yksuspnd Reverse Ykewait Gotosuspend
Performing Failback
Ykquery Ykresync Deltajnl Ykewait Gotoduplex
Yksuspnd Forward Ykewait Gotosuspend
10-21
10-22 Usage Scenarios
Troubleshooting
Troubleshooting
General Troubleshooting
Troubleshooting Problems with Status of Logical Paths
Error Corrective Action
Path Status Description
Troubleshooting
Troubleshooting Suspended URz Pairs
Suspend Type Applies Description Corrective Action
Recovery procedure
Resolving URz Pair Suspension
Classification Causes of Suspension
Universal Replicator for z/OS Software Error Codes
DC0
Checking Service Information Messages SIMs
Typical SIM Showing Reference Code and SIM Type
Severity Description
SVP Log To host?
File
Troubleshooting
Calling the Hitachi Data Systems Support Center
Hitachi Universal Replicator for IBM /OS User’s Guide
Acronyms and Abbreviations
Page
Index
Index-2
Index-3
Index-4
Hitachi Universal Replicator for IBM /OS User’s Guide
Hitachi Data Systems Corporate Headquarters
