Virtual Storage Platform One SDS Block and SDS Cloud Universal Replicator Administration

Version: 1.18.x
Audience: anonymous
Part Number: MK-24VSP1SDS009-05

Universal Replicator overview
About Universal Replicator
Universal Replicator basic configuration
Storage system
UR data volume
Journal volume
Data path
Universal Replicator components
Journal
Mirror
Splitting mirrors
Resynchronizing mirrors
Deleting mirrors
Consistency groups and journals
Management software and user interface
CCI
Hitachi Device Manager - Storage Navigator
VSP One Block Administrator
REST API for VSP family/VSP One Block
REST API for VSP One SDS Block
CLI for VSP One SDS Block
VSP One SDS Block Administrator
Pair operation and pair status
Option for writing to secondary volumes
Remote copy
Initial copy
Update copy
Use case
Protecting data by backup
Swiftly resuming operation after disaster
Streamlining data migration
Planning configuration
System configuration
Locating management servers
When management servers are located in a data center and public cloud
When management servers are located in data centers
When management servers are located in a data center and near cloud
When management servers are located in a public cloud
CCI configuration
System design
Planning volumes used for Universal Replicator and data transfer speed
Preparation
Measuring write-workload
Measuring input/output operations per second (IOPS)
Determining your recovery point objective (RPO)
Planning the structure of journals
Planning data transfer speed
Planning journal volumes
Planning pair volumes
Planning the configuration for disaster recovery
Capacity balance of VSP One SDS Block
When sharing volumes with other functions
Guidelines for preparing the storage systems for a Universal Replicator system
Planning the data path
Remote path that connects a primary storage system and secondary storage system
Minimum configuration for remote paths
Recommended configuration of remote paths (for plus-1 redundant configuration)
Recommended configuration of remote paths (for plus-2 redundant configuration)
Sizing bandwidth for data transfer
Ports to be used
Planning physical paths
Bandwidth required for Universal Replicator
Notes on using iSCSI
Notes on remote paths
Notes on physical paths
Notes on ports
Notes on network settings
Configuring the system
Configuration workflow
Installing program products ( VSP family/VSP One Block)
Installing CCI ( VSP family / VSP One Block )
Installing CCI ( VSP One SDS Block )
Configuring a storage system for Universal Replicator
Defining iSCSI port attributes ( VSP family/VSP One Block)
Defining remote path groups
Defining remote path groups by registering iSCSI port information ( VSP One SDS Block )
Obtaining VSP One SDS Block information necessary for defining remote path groups ( VSP One SDS Block )
Registering iSCSI port information of a remote storage system in VSP One SDS Block ports ( VSP One SDS Block )
Defining remote path groups from VSP One SDS Block to a remote storage system ( VSP One SDS Block )
Defining remote path groups by registering iSCSI port information ( VSP family / VSP One Block )
Creating journals
Creating journals on VSP family/VSP One Block ( VSP family/VSP One Block)
Creating journals on VSP One SDS Block ( VSP One SDS Block )
Assigning an MP unit to a journal ( VSP family/VSP One Block)
Creating UR data volumes and assigning LUNs to the volumes ( VSP family / VSP One Block )
Creating UR data volumes and assigning LUNs to the volumes ( VSP One SDS Block )
Creating the CCI configuration definition file
Information required for creating the configuration definition file
HORCM_MON: Definition of local host information
Information defined in HORCM_MON
Definition example of HORCM_MON (plus-1 redundant configuration)
HORCM_CMD: Definition of command device information
Information defined in HORCM_CMD
How to confirm the control port IP address and the UDP communication port number of a virtual command device
Definition example of HORCM_CMD (plus-1 redundant configuration)
HORCM_LDEV: Definition of volume pair information
Information defined in HORCM_LDEV
Definition example of HORCM_LDEV (plus-1 redundant configuration)
HORCM_INSTP: Definition of remote host information
Information defined in HORCM_INSTP
Definition example of HORCM_INSTP (plus-1 redundant configuration)
HORCM_ENC_MODE, HORCM_ENC_CIPHER, and HORCM_ENC_SERVER_AUTH: Encryption settings ( VSP One SDS Block )
Information defined in HORCM_ENC_MODE, HORCM_ENC_CIPHER, and HORCM_ENC_SERVER_AUTH ( VSP One SDS Block )
Definition examples of HORCM_ENC_MODE, HORCM_ENC_CIPHER, and HORCM_ENC_SERVER_AUTH ( VSP One SDS Block )
Starting the CCI instance
Setting the remote replica options ( VSP family/VSP One Block)
Creating pairs
Performing operation and maintenance
Operating pairs
Precautions on pair operation
Verifying the pair status
Splitting pairs
When writing to S-VOLs is not allowed
When writing to S-VOLs is allowed
Resynchronizing pairs
Deleting pairs
Maintaining pairs
Verifying the pair matching rate
Changing the range of pair split in the event of failure
Deleting pairs forcibly
Outputting pair information in TSV format ( VSP family)
Verifying the pair operation history ( VSP family)( VSP One SDS Block )
Monitoring the pair status
Maintaining a journal and mirror
Viewing a journal
Viewing a journal by using CCI ( VSP family/VSP One Block)
Viewing a journal by using a REST API or CLI ( VSP One SDS Block )
Verifying the mirror status
Verifying the mirror status by using CCI ( VSP family /VSP One Block )
Verifying the mirror status by using a REST API or CLI ( VSP One SDS Block )
Changing journal options
Changing journal options by using CCI ( VSP family /VSP One Block )
Changing journal options by using a REST API or CLI ( VSP One SDS Block )
Changing mirror options
Changing mirror options by using CCI ( VSP family /VSP One Block )
Changing mirror options by using a REST API or CLI ( VSP One SDS Block )
Adding a journal volume to a journal
Adding a journal volume to a journal by using CCI ( VSP family /VSP One Block )
Adding a journal volume to a journal by using a REST API or CLI ( VSP One SDS Block )
Deleting a journal volume from a journal
Deleting a journal volume from a journal by using CCI ( VSP family /VSP One Block )
Deleting a journal volume from a journal by using a REST API or CLI ( VSP One SDS Block )
Deleting a journal
Deleting a journal by using CCI ( VSP family /VSP One Block )
Deleting a journal by using a REST API or CLI ( VSP One SDS Block )
Replacing a journal volume with a reserve journal volume
When replacing a journal volume with a reserve journal volume by using CCI ( VSP family)
When replacing a journal volume with a reserve journal volume by using CCI with a REST API or CLI ( VSP One SDS Block )
Restoring pairs without using a reserve journal volume
Changing the journal volume size
Deleting mirrors forcibly
Maintaining remote paths
Verifying the status of remote path groups and remote paths
Verifying the status of remote path groups and remote paths by using CCI ( VSP family /VSP One Block )
Verifying the status of remote path groups and remote paths by using a REST API or CLI ( VSP One SDS Block )
Changing the data-transfer waiting time
Changing the data-transfer waiting time by using CCI ( VSP family /VSP One Block )
Changing the data-transfer waiting time by using a REST API or CLI ( VSP One SDS Block )
Adding a remote path to a remote path group
Adding a remote path to a remote path group by using CCI ( VSP family /VSP One Block )
Adding a remote path to a remote path group by using a REST API or CLI ( VSP One SDS Block )
Deleting a remote path from a remote path group
Deleting a remote path from a remote path group by using CCI ( VSP family /VSP One Block )
Deleting a remote path from a remote path group by using a REST API or CLI ( VSP One SDS Block )
Deleting a remote path group
Deleting a remote path group by using CCI ( VSP family /VSP One Block )
Deleting a remote path group by using a REST API or CLI ( VSP One SDS Block )
Verifying the remote iSCSI port information
Verifing remote iSCSI port information by using CCI ( VSP family /VSP One Block )
Verifing remote iSCSI port information by using a REST API or CLI ( VSP One SDS Block )
Deleting registered information about remote iSCSI ports
Deleting registered information about remote iSCSI ports by using CCI ( VSP family /VSP One Block )
Deleting registered information about remote iSCSI ports by using a REST API or CLI ( VSP One SDS Block )
Creating a complete copy of UR data volumes at a certain point
Backing up S-VOL data by using snapshots
Completing SIMs related to Universal Replicator ( VSP family/VSP One Block)
Verifying copy operations and I/O statistics
Verifying the license capacity ( VSP family/VSP One Block)
Expanding UR data volumes
Adding storage nodes when Universal Replicator is used
Action to be taken when event log KARS03208-W occurs
Action to be taken when event log KARS03209-W occurs
Removing storage nodes when Universal Replicator is used
Managing power-off for storage systems and network devices
Performing planned shut down and restarting for the storage system
Shutting down and restarting a primary or secondary storage system
Shutting down the primary and secondary storage systems and then restarting them concurrently
Stopping and restarting network devices
What happens when power stops unexpectedly
When power is removed from a primary storage system
When power is removed from network relay devices
Changing the window size when communicating with initiators (VSP One SDS Block)
Disaster recovery operations
Recovery operations in a basic configuration
Workflow for disaster recovery (until resuming operations in the primary site)
File and database recovery
Switching host operations to the secondary site
Copying data from the secondary site to the primary site
Resuming host operations at the primary site
Recovery operations when pair volumes are shared with another program product
Recovery for UR/SI configurations
Detailed design
Measuring write-workload and IOPS
Journal volume capacity
Planning journal volume capacity
Sizing journal volumes
Identifiers used for creating a Universal Replicator system
Identifiers obtained from VSP One SDS Block
Identifiers assigned by users
Method of checking unused path group IDs
Pair statuses (as displayed by CCI)
UR PSUS types and behaviors
UR PSUE types and behaviors
Managing suspensions and differential data
Differential data recorded by storage systems
Capacity of a pool for managing differential data
Mirror statuses (as displayed by CCI, REST API, and CLI)
Notes on splitting pairs in Flush mode
Interoperability between Universal Replicator and other functions
Volume types that can be shared with Universal Replicator
Interoperability between Universal Replicator and snapshots
Interoperability between Universal Replicator and storage pools management ( VSP One SDS Block )
Using Universal Replicator and the volume data reduction function concurrently ( VSP One SDS Block )
Interoperability between Universal Replicator and compute node management ( VSP One SDS Block )
Interoperability between Universal Replicator and ShadowImage ( VSP family / VSP One Block )
Interoperability between Universal Replicator and Volume Migration ( VSP family / VSP One Block )
Interoperability between Universal Replicator and Universal Volume Manager ( VSP family/VSP One Block)
Interoperability between Universal Replicator and Resource Partition Manager ( VSP family / VSP One Block )
Interoperability between Universal Replicator and Data Retention Utility ( VSP family /VSP One Block )
Interoperability between Universal Replicator and Virtual LUN ( VSP family /VSP One Block )
Interoperability between Universal Replicator and LUN Manager ( VSP family /VSP One Block )
Interoperability between Universal Replicator and Dynamic Provisioning ( VSP family /VSP One Block )
Interoperability between Universal Replicator and Performance Monitor ( VSP family )
Troubleshooting
Overview of troubleshooting Universal Replicator problems
VSP family/VSP One Block service information messages (SIMs)
VSP One SDS Block event logs
General troubleshooting
Troubleshooting remote path status problems
VSP family / VSP One Block remote path statuses and corrective actions
VSP One SDS Block remote path statuses and corrective actions
Action to be taken when an error occurs during remote path deletion for VSP One SDS Block
Troubleshooting suspended pairs
Releasing suspended pairs based on suspend types
Action to be taken for each event log
Troubleshooting VSP One SDS Block journal problems
VSP One SDS Block journal statuses and corrective actions
Action to be taken when storage controller capacity is depleted
Restoring pairs after VSP One SDS Block configuration restore (action to be taken when event log KARS13300-W is output)
Action to be taken when the consumed amount of S-VOLs is larger than that of P-VOLs after initial copy ( VSP One SDS Block )
Error codes
Troubleshooting with CCI
Error codes (SSB1 is B9E1/B9E2 and SSB2 is B901) and their descriptions when operating CCI
Error codes (SSB1 is 2E31/B901/B9E0/B9E1/B9E2/B9E4/D004) and their descriptions when operating CCI
Error codes (SSB1 is B901/B9E0/B9E1/B9E2/B9E4/D004) and their descriptions when operating CCI
Error codes (SSB1 is B9FE) and their descriptions when operating CCI
Error codes (SSB1 is B912) and their descriptions when operating CCI
Error codes (SSB1 is B9E2) and their descriptions when operating CCI
Troubleshooting VSP One SDS Block performance problems
Distributing the load on storage controllers
Window size change when communicating with initiators
Specifications
System requirements
VSP family requirements
VSP One Block requirements
VSP One SDS Block requirements (Bare metal)
VSP One SDS Block requirements
Example of Multi-AZ (Multi-Zone) configuration
IP address
Specifications related to Universal Replicator
Universal Replicator volumes and journals
Pair volume specifications
Journal volume specifications
Journal and consistency group specifications
Data path specifications
Cloud platform charging when using Universal Replicator (Cloud)
Deleting configuration information of Universal Replicator
CCI command
Options for specifying a remote storage system
Replication commands of CCI supported by VSP One SDS Block
horcmstart
horcmshutdown
Options common to pair operation commands
paircreate options
pairdisplay options
pairsplit options
pairresync options
horctakeover options
pairevtwait options
pairvolchk options
pairsyncwait options
Management software
Management software
Selecting management software
Reference information for this document
Supplementary information about units
Notations used in this manual
Abbreviations used in this manual

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