Universal Replicator Guide for Mainframe for VSP One Block 85

Version: 10.5.x
Audience: anonymous
Part Number: MK-26VSP1B037-01
Published: 2026-05-04

Overview of Universal Replicator for Mainframe
About Universal Replicator for Mainframe
Replication operations
System components
Storage systems
Pair volumes
Journal volumes
Journals
Mirror
Split mirror operations
Resync mirror operations
Delete mirror operations
Data path
Consistency groups and journals
Extended consistency groups
User interface support for Universal Replicator for Mainframe
Command Control Interface
Business Continuity Manager
Copy operations
Initial copy operation
Update copy operation
Read and write I/O during remote copy
Differential data management
S-VOL write option
S-VOL read option
Pair status
Pair status definitions
Additional information on pair status
Suspend types
Suspension conditions on secondary storage systems
Sharing volumes with other product volumes
3DC configurations with three URz sites
3DC multi-target configuration with three URz sites
3DC cascade configuration with three URz sites
3DC multi-target configuration with three URz sites using delta resync
3DC cascade configuration with three URz sites using delta resync
Requirements and specifications
System requirements
Business Continuity Manager specifications
SAID values for CESTPATH/YKBLDPTH
RMF PPRC link path statistical information support
Interoperability requirements
Volume types that can be shared with Universal Replicator for Mainframe
Using DP-VOLs that are also used by ShadowImage for Mainframe pairs or Volume Migration
Compatible FlashCopy V2
Dynamic Provisioning for Mainframe
Provisioning
Resource Partition Manager
Universal Volume Manager
Virtual LVI
Volume Migration
Planning for Universal Replicator for Mainframe
Assessing business requirements for data recovery
Write-workload
Measuring write-workload
Data transfer speed considerations
Host I/O time stamp
Sizing journal volumes
Planning journals
Planning journal volumes
Planning journal volumes for delta resync
Planning pair volumes
Data and journal volume specifications
Duplicate VOLSERs
Maximum number of pairs
Maximum initial copy operations and priorities
Disaster recovery considerations
Error reporting communications (ERC)
Planning URz in multiple storage systems
Requirements for multiple storage systems
Registering multiple journals to a CCI consistency group
Establishing connections between multiple secondary storage systems
Planning URz in multiple storage systems using CCI
Planning for other storage systems
Preparing the storage systems for URz
Advanced system settings
Planning the data path
Data path design
Sizing bandwidth
Sizing strategies
Calculating bandwidth
Sizing bandwidth for peak write-workload
Sizing bandwidth for peak rolling average write-workload
Latency
Packet loss
Planning ports for data transfer
Planning physical paths
Supported data path configurations
Fibre Channel data path requirements
Additional switches
Fibre Channel used as remote paths
Universal Replicator for Mainframe configuration operations
Configuration workflow
Workflow for a 3DC multi-target configuration with three URz sites
Workflow for a 3DC cascade configuration with three URz sites
Configuring primary and secondary storage systems for URz
Configuring additional remote paths
Setting the remote replica options
Setting the maximum initial copy activities option
Setting the blocked-path monitoring and blocked-path SIM monitoring options
Creating journals and adding journal volumes
Assigning an MP unit to a journal
Universal Replicator for Mainframe pair operations
Behavior when performing pair operations
Performing pair tasks in 3DC configurations
Creating a URz pair
Checking the pair status
Splitting a URz pair
Splitting a mirror
Creating point-in-time copies
Resynchronizing a URz pair
Resynchronizing a mirror
Deleting a URz pair
Deleting a mirror
Monitoring the URz system
Monitoring pair activity, status, license capacity
Monitoring URz pair synchronization rate
Monitoring copy operations and I/O statistics
Monitoring journal (mirror) status
Monitoring URz remote connections and path status
Data migration
Migrating data using Universal Replicator for Mainframe
Maintaining the URz system
Pair maintenance
Changing the maximum initial copy activities option
Changing the scope of pair split if UR fails
Forcibly deleting pairs
Workflow to restore a pair by adding a reserve journal volume
Restoring a pair without adding a reserve journal volume
Journal and mirror maintenance
Changing options used by journals
Changing options used by mirrors
Replacing a journal volume
Replacing a journal volume with a reserve journal volume
Adding a reserve journal volume
Deleting journal volumes from a journal
Deleting journals
Remote path maintenance
Modifying the data-transfer time threshold
Deleting remote paths
Deleting the URz relationship
Adding cache memory
Removing cache memory
Adding shared memory when replication pairs already exist
Removing shared memory
Sharing volumes with other product volumes
URz disaster recovery operations
Overview of disaster recovery operations
Workflow for disaster recovery
Preparing for disaster recovery
Preparing for file and database recovery
Switching host operations to the secondary site
Reversing copy direction from secondary to primary site
Resuming host operations at the primary site
Recovery for configurations with multiple primary systems and secondary systems
Journal errors and journal status (multiple primary and secondary systems) (VSP One B85)
Recovery for 3DC configurations with three URz sites
Recovering from a failure in a 3DC multi-target configuration with three UR sites (when delta resync is performed)
Moving business operations to the secondary site
Moving business operations back to the primary site
Requirements for performing delta resync in a 3DC multi-target configuration with three UR sites
Recovering from a failure in a 3DC cascade configuration with three UR sites
Recovering when a failure occurs in the primary site
Recovering when a failure occurs in the intermediate site
Recovering when a failure occurs in the primary-intermediate path
Resynchronizing journals between the primary and secondary sites
Resynchronizing journals in the primary and intermediate sites
Recovering when a failure occurs in the secondary site
Recovery for 3DC cascade configuration with three URz sites
Recovering from a primary site failure
Recovering from an intermediate site failure for a 3DC cascade configuration with three URz sites
Requirements for performing delta resync in a 3DC cascade configuration with three URz sites
Recovery for 3DC URz/TCz
Recovery for 3DC URz/TCz cascade configuration
Recovery for 3DC URz/TCz multi-target configuration
Recovery in a delta resync configuration
Recovery for URz/SIz configurations
Recovery from a failure at the primary site and TC secondary site
Switching from the primary to secondary site (TC secondary site)
Transferring operations back to the primary site (TC secondary site)
Troubleshooting
General troubleshooting
Journal errors and journal status (multiple primary and secondary systems) (VSP One B85)
Remote path status problems
Troubleshooting by suspend type
Troubleshooting hardware problems affecting pairs
CCI error codes for Universal Replicator
Service information messages (SIMs)
SIM reference code tables
Managing power-off for systems and network devices
When power stops unexpectedly
When power is removed from the primary or secondary storage system
When power is removed from network relay devices
Planned outage of storage systems and network devices
Powering off the primary or secondary storage system
Powering off the primary and secondary storage systems
Powering-off network relay devices
Configurations with TrueCopy for Mainframe
Overview of URz/TCz configurations
Sharing volumes with TrueCopy for Mainframe
3DC cascade configuration
Prerequisites for 3DC cascade
Setting up the 3DC cascade configuration
3DC multi-target configuration
Prerequisites for 3DC multi-target
Setting up 3DC multi-target configuration
Delta resync configuration
Additional task for the 3DC multi-target configuration using delta resync
Creating a delta resync pair
Setting up remote command devices for use with CCI
Mapping remote command devices for delta resync operations
Assigning mirrors to remote command devices for delta resync operations
Releasing a remote command device for delta resync operations assigned to a mirror
Relationship between deleted associated pairs and assigned remote command devices
Automatically deleted pairs that are automatically released
Conditions for performing delta resync
Conditions for ending delta resync
When delta resync is not performed successfully
Delta resync failure error prevention
Configurations with ShadowImage for Mainframe
Overview of URz/SIz configurations
Configurations with SIz primary volumes
Configurations with SIz secondary volumes
Pair status and data currency
CLI command reference for Universal Replicator for Mainframe
Configuration operations
Pair operations
Monitoring operations
Maintenance operations
Parameter range for CCI options
Consistency group operations

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