TrueCopy® User Guide

Version: 9.8.6
Audience: anonymous
Part Number: MK-98RD9022-17

Overview of Hitachi TrueCopy®
Hitachi TrueCopy®
System components
Storage systems
Volume pairs
Data path
Consistency groups
User interfaces
Failover software
Initial copy and update copy operations
Initial copy operations
Update copy operations
Pair status
Requirements and specifications
System requirements and specifications
Planning for TrueCopy
Storage system preparation
Cache and shared memory requirements
Adding and removing cache memory
Adding shared memory
Removing shared memory
Advanced system settings
Requirements for pairing VSP 5000 series with other storage systems
Remote replication options
Round trip time option
Minimum number of remote paths option
Maximum initial copy activities option
Blocked path monitoring option
Blocked path SIM monitoring option
Services SIM of remote copy option
Analyzing workload and planning data paths
Data path requirements and configurations
Bandwidth requirements
Fibre Channel requirements
Supported data path configurations for Fibre Channel
Direct connection
Switch connection
Extender connection
iSCSI requirements and cautions
Fibre Channel used as remote paths
Restrictions when using NVMe-oF
Ports
Port requirements (VSP 5000 series)
Port attributes (VSP 5000 series)
Pair and pair volumes planning
Pair volume requirements and recommendations
Allowing I/O to the S-VOL
Allowing I/O to the P-VOL after a split: Fence Level options
Differential data
Maximum number of pairs supported
Calculating the maximum number of pairs
Initial copy priority option and scheduling order
Restrictions when creating an LU whose LU number is 2048 or greater
Consistency group planning
Consistency group for pairs in one primary and one secondary storage system
Consistency group for pairs in multiple primary and secondary storage systems
System configurations for consistency groups
Registering pairs to a new consistency group when creating a new TC pair
Registering pairs to a new consistency group when creating a new TC or TCz pair
Registering pairs to a new consistency group when using existing TC pairs
Registering pairs to a new consistency group when using existing TC or TCz pairs
Registering pairs to an existing consistency group when creating a new TC pair
Registering pairs to an existing consistency group when creating a new TC or TCz pair
Registering pairs to an existing consistency group when using existing TC pairs
Registering pairs to an existing consistency group when using existing TC or TCz pairs
Consistency group requirements
Requirements for a CTG for one primary and one secondary system
Requirements for a CTG for multiple primary and secondary systems
Assigning pairs to a consistency group
Assigning pairs belonging to one primary system and secondary system
Assigning pairs belonging to multiple primary and secondary systems
Assigning TC and TCz pairs to the same consistency group
Using a new CTG
Using an existing CTG
Split behaviors for pairs in a CTG
Host access after split
Pair status before and after a split operation (VSP 5000 series)
Consistency group 127
CTG 127 behavior and restrictions when a pair is suspended
CTG 127 behavior and restrictions when the data path fails
Resynchronizing and removing pairs using Business Continuity Manager (VSP 5000 series)
Host failover software
Sharing TrueCopy volumes
Volume types that can be shared with TrueCopy
Cache Residency Manager (VSP 5000 series)
Data Retention Utility
Dynamic Provisioning
Global storage virtualization
LUN Manager
Performance Monitor
ShadowImage
Configurations with ShadowImage P-VOLs
Configurations with ShadowImage S-VOLs
Status reporting and data currency
Thin Image
Thin Image Advanced
Universal Replicator
Virtual LUN
Volume Migration
Restrictions to using a TrueCopy volume as a Volume Migration volume
TC configuration
Configuration workflow
Defining port attributes (VSP 5000 series)
Adding remote connections
Setting the remote replication options
Completing SIMs for TC (VSP 5000 series)
TC pair operations
Pair operations workflow
Checking pair status
Creating pairs
Splitting pairs
Resynchronizing pairs
Deleting pairs
Monitoring and maintaining the TC system
Monitoring pair status and license capacity
How pair status changes
Pair status definitions
Split types
System behavior
Monitoring TC pair synchronization rate
Monitoring TC operations history
Operations listed in the History window
Changing P-VOL fence level
Forcibly deleting pairs
Saving pair information to a text file
Monitoring copy operations and I/O statistical data
Monitoring and maintaining remote connections and paths
Remote path status definitions
Configuring additional remote paths
Changing remote connection options
Deleting remote paths
Deleting remote connections
Expansion of DP-VOL capacity while keeping pair status
Expanding DP-VOL capacity used in TrueCopy pair
Expansion order policy when TrueCopy pair shares the same volumes with other software
Expanding DP-VOL capacity when TrueCopy pair is used with Universal Replicator
Expanding DP-VOL capacity when TrueCopy pair is used with ShadowImage
Calculating the numbers of differential and pair tables for each pair
Expanding DP-VOL capacity when TrueCopy pair is used with Thin Image
Calculating the snapshot estimated manageable capacity, the numbers of cache management devices, and the subscription limit of the V-VOL capacity
Expansion order policy in configuration where P-VOL in remote replication shares the same volume with S-VOL in local replication
Expansion order policy in 3DC cascade, 3DC multi-target, or 3DC delta resync configuration with remote replications
Expansion order when remote replications in a 3DC cascade configuration share the same volumes with local replications (ShadowImage/Thin Image)
Recovering from failure if one volume capacity in TrueCopy pair cannot be expanded
Recovering from failure if one volume capacity in TrueCopy pair has been expanded
Managing power-off for systems and network devices
How powering off for a planned outage affects primary and secondary systems
Planned outage of the primary system
Planned outage of the secondary system or remote path
Planned outage of both primary and secondary systems
Data migration
Migration overview
Migrating data
Disaster recovery
Disaster recovery overview
Sense information shared between sites
File and database recovery
Switching operations to the secondary site
Switching operations to the secondary site by deleting pairs
Switching operations to the secondary site by not deleting pairs
Checking S-VOL consistency with the P-VOL
Transferring operations back to the primary site
Transferring operations back to the primary site if pairs were deleted
Transferring operations back to the primary site if pairs were not deleted
Troubleshooting TrueCopy
Device Manager - Storage Navigator error codes and messages
General troubleshooting
Remote path status problems
Split pair problems
Troubleshooting using CCI
SSB2 error codes when SSB1 = 2E31/B901/B90A/B90B/B912/D004
SSB2=B992 error codes when SSB1 = B901 or B90A
SSB2 error codes when SSB1 = B90B
SSB2 error codes when SSB1 = B912
Service information messages (SIMs)
Pinned track recovery
TC CLI reference
Configuration commands and options
Pair operation commands and options
Consistency group commands and options
Monitoring commands and options
Maintenance commands and options
Parameter range for CCI options
TC GUI reference
Replication window
Remote Replication window
Remote Connections window
Add Remote Connection wizard
Add Remote Connection window
Add Remote Connection confirmation window
View Remote Connection Properties window
Remove Remote Connections window
Edit Remote Connection Options wizard
Edit Remote Connection Options window
Edit Remote Connection Options confirmation window
Add Remote Paths wizard
Add Remote Paths window
Add Remote Paths confirmation window
Remove Remote Paths wizard
Remove Remote Paths window
Remove Remote Paths confirmation window
Edit Remote Replica Options wizard
Edit Remote Replica Options window
Change CU Options window
Edit Remote Replica Options confirmation window
Create Pairs wizard
Create TC Pairs window or Create UR Pairs window
Change Settings window
Create Pairs confirmation window
Split Pairs wizard
Split Pairs window
Split Pairs confirmation window
Resync Pairs wizard
Resync Pairs window
Resync Pairs confirmation window
Delete Pairs wizard
Delete Pairs window
Delete Pairs confirmation window
Force Delete Pairs (TC Pairs) window
Edit Pair Options wizard
Edit Pair Options window
Edit Pair Options confirmation window
View Pair Properties (Remote) window
View Pair Synchronization Rate window
History window
Edit Ports window
Complete SIMs (TC) window (VSP 5000 series)

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