Hitachi VSP G1500 User Manual

(1) Defining to control UR MxN
CCI supports a way to specify consistency Q-Marker to the specified group by
adding "HORCM_CTQM" as a keyword in horcm.conf (see example below).
HORCM CTQM
#groupinterval (10ms)mode(optional
oradb300
where
• group is to be allowed as a group across multiple storage systems.
• interval is the interval for the CTQ-Marker, recommended as a few
second.
• mode is the run mode for the CTQ-Marker (timestamp). The default run
mode is freeze/run. This does not normally need to be specified. If "run"
is specified, then the timestamp is issued without freeze.
(2) Specifying different JID into consistency group
In order to support the MxN configuration, it is necessary to specify a
different journal ID (JID) into a consistency group corresponding to a CCI
group. Thus CCI adds an option to specify Journal ID in horcm.conf.
HORCM_LDEV
#dev_group dev_name Serial# CU:LDEV(LDEV#) MU#
oradb dev1 30095:1 02:40
oradb dev2 30095:1 02:41
oradb dev3 30095:2 02:42
oradb dev4 30095:2 02:43
Note: The number at the end of the serial number (for example, :1 or :2)
specifies the Journal ID.
If JID (Journal ID) is specified on horcm.conf as mentioned above, then the
paircreate command need not specify Journal ID (-jp <jid> -js <jid>)
option.
If JID (Journal ID) is not specified on horcm.conf, then Journal ID (-jp <jid> -
js <jid>) option of the paircreate command is used.
Command specifications
CCI does not change the command options for supporting Universal
Replicator MxN Open. However the output of the command is added so that
the command can display the consistency group and Q-Marker for each
storage system, because the consistency group and Q-Marker are managed
on each storage system.
pairdisplay command
The output of pairdisplay -v ctg and pairdisplay -v jnl[t] are
supported so that the option can display consistency group information for
each storage system. Following is an example for UR 2x2:
6-46
Data replication operations with CCI
Command Control Interface User and Reference Guide

Hitachi VSP G1500 Specifications

General

Model	VSP G1500
Category	Enterprise Storage System
Drive Types Supported	SSD, HDD
RAID Levels Supported	RAID 5, RAID 6, RAID 10
Controller Type	Dual Active Controllers
Connectivity	Fibre Channel (FC), iSCSI, FCoE
Power Supply	Redundant Power Supplies
Maximum Host Connectivity	256
Data Reduction Features	Deduplication, Compression
Operating System Compatibility	Windows, Linux, VMware
Management Software	Hitachi Command Suite
Cooling	Redundant Fans
Warranty	3 years standard warranty
Form Factor	Rack-mounted

Summary

1 Overview

About Command Control Interface

Provides an overview of the Command Control Interface (CCI) software and its capabilities for managing Hitachi RAID storage systems.

CCI functions

CCI functions available on all RAID storage systems

Details the core CCI functionalities like in-system replication, remote replication, and data protection supported on all Hitachi RAID storage systems.

3 CCI functions

System configuration using CCI

Describes system configurations using in-band and out-of-band methods, including connecting to an in-band CCI server via out-of-band.

User authentication

Details how CCI allows user authentication by using operation authority and the mandatory nature of this function.

Command operation authority and user authentication

Explains how commands are executed complying with user operation authority when the user authentication function is enabled.

Resource lock function

Explains how to prevent users from changing the configuration of the same resource simultaneously.

Command execution modes

LDEV grouping function

4 Starting up CCI

Starting up on UNIX systems

Provides instructions for starting CCI with one or two instances on UNIX systems, including service registration and startup scripts.

Starting up on Windows systems

Details the process of starting CCI with one or two instances on Windows systems, including service registration and startup files.

Starting CCI as a service (Windows systems)

5 Provisioning operations with CCI

About provisioning operations

Resource group operations

Virtual volume (Dynamic Provisioning) operations

Details operations for creating LDEVs of virtual volumes for Dynamic Provisioning and making them available to hosts.

Virtual volume (Dynamic Tiering) operations

Configuring iSCSI virtual ports

Explains how to enable/disable iSCSI virtual port mode and set/delete virtual port numbers for iSCSI ports.

External volume operations

Covers operations for creating external volumes via Fibre Channel and iSCSI, including mapping and modifying options.

Server Priority Manager operations

Explains how to prioritize host I/O operations for high-speed processing by specifying host HBA WWNs or iSCSI names.

6 Data replication operations with CCI

About data replication operations

Using CCI with ShadowImage and TrueCopy

Describes how to perform ShadowImage and TrueCopy operations by issuing commands from a server host.

Using CCI with Thin Image

Explains how to perform Hitachi Thin Image operations by issuing raidcom commands to create snapshots.

Using CCI with global-active device

ShadowImage operations

Illustrates ShadowImage configuration and lists sample ShadowImage functions executable via CCI commands.

TrueCopy operations

Explains how CCI TrueCopy commands operate with server software and TrueCopy functions for backup and failover.

TrueCopy, ShadowImage, and Universal Replicator operations

Copy-on-Write Snapshot operations

Explains how Copy-on-Write Snapshot normally creates virtual volumes for copying on write.

Controlling Volume Migration

Details how to control Volume Migration, including external volumes, using CLI and compatible modes.

Duplication of CCI applications

7 Data protection operations with CCI

Data protection operations

Protection parameters and operations

Data Protection facility

Explains how the Data Protection Facility permits main operations to volumes and controls protected volumes via LUN Security.

8 Examples of using CCI commands

Host group control

Using CCI SLPR security

9 Troubleshooting

General troubleshooting

Provides general troubleshooting advice for CCI software, including checking server hardware/software and restarting.

Operational notes and restrictions for CCI operations

Error messages and error codes

Lists system log messages and command error messages with recommended actions for resolving error conditions.

Calling Hitachi Data Systems customer support

Provides information on contacting customer support, including necessary details to provide for problem resolution.