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42 Chapter 3
Functional and Operational Characteristics
3.7.5 Command Control Interface (CCI)
Hitachi Command Control Interface (CCI) enables users to perform Hitachi TrueCopy and
Hitachi ShadowImage operations on the Lightning 9900™ subsystem by issuing commands
from the UNIX
®
/PC server host to the 9900 subsystem. The CCI software interfaces with the
system software and high-availability (HA) software on the UNIX
®
/PC server host as well as
the TrueCopy/ShadowImage software on the 9900 subsystem. The CCI software provides
failover and other functions such as backup commands to allow mutual hot standby in
cooperation with the failover product on the UNIX
®
/PC server (e.g., MC/ServiceGuard
®
,
FirstWatch
®
, HACMP).
CCI also supports a scripting function that allows users to define multiple TrueCopy and/or
ShadowImage operations in a script (text) file. Using CCI scripting, you can set up and
execute a large number of TrueCopy and/or ShadowImage commands in a short period of
time while integrating host-based high-availability control over remote copy operations.
Note: For further information on CCI, please see the Hitachi Lightning 9900™ Command
Control Interface (CCI) User and Reference Guide (MK-90RD011), or contact your Hitachi
Data Systems account team.
3.7.6 Extended Copy Manager (ECM)
Extended Copy Manager (ECM), together with the backup application on the open-system
host server, provides server-free backup solutions between the 9900 subsystem and backup
devices such as tape and disk devices. Extended Copy Manager enables non-disruptive
backup directly from disk to tape (or disk) in storage-area network (SAN) environments,
eliminating server CPU and I/O overhead during movement of data and decreasing the time
required for backup. Users can perform copy (backup) operations on the data (in units of
block) stored on the multiplatform 9900 subsystem via fibre-channel interfaces directly to
the backup devices.
Extended Copy Manager supports the SCSI Extended Copy command issued from the host
server to the 9900 subsystem. The 9900 subsystem receives the Extended Copy commands
issued by the server, and then copies the data directly to the specified backup device. ECM
operations are configured using the LUN Manager software on the Remote Console PC. To
implement ECM operations, you need a backup application on the host server to issue the
Extended Copy commands to the 9900 subsystem.
Note: For further information on Extended Copy Manager, please see the Hitachi Lightning
9900™ LUN Manager User’s Guide (MK-91RD049), or contact your Hitachi Data Systems
account team.