1、在主机端可以通过命令行进行控制。
To use the CLI, go to the command line shell of your operating system. At the command
prompt, enter SMcli, followed by either the controller name, host-agent name, world-wide
name (WWN), controller IP addresses or user-supplied name of the specific Storage
Subsystems depending on the Storage Subsystem management method you are using. For
more information regarding the command-line interface, refer to Chapter 11, “Command-line
interface and Script Editor” on page 497.
2、flashcopy 功能。 （就是snapshot快照）
You can create FlashCopy logical drives by GUI or command-line interface (CLI) with the
create FlashCopyLogicaldrive command. CLI can be scripted to support automatic
operations.
This procedure is using the GUI. For CLI instructions, see 7.3, “FlashCopy using
command-line interface” on page 332, and 4.2.8, “Script Editor and command-line interface”
on page 162, for more information.
To prevent this from happening, during a base logical drive defragmentation, ensure that
the FlashCopy repository logical drives' capacity is set to 105% of the size of the base
logical drive before starting the defragmentation utility. This is the minimum size needed to
support a copy-on-write of every data block in the base logical drive.
310 DS4000 Series, Storage Manager, and Copy Services
The tasks that are covered include:
Checking the status of the FlashCopy premium feature
Creating a FlashCopy drive
Mapping a FlashCopy drive to a host
Viewing FlashCopy drive status
Disabling a FlashCopy drive
Re-creating a FlashCopy drive
Resizing a FlashCopy repository drive
Deleting a FlashCopy drive
3、volumecopy 卷拷贝（在同一个存储之间，从小卷拷贝到大卷）step-by-step procedures
This section presents an easy-to-follow, step-by-step procedural guide to common
administration tasks for a VolumeCopy. The tasks that are covered include:
1、 Checking the status of the VolumeCopy premium feature 
不正常
正常
2、 Creating a VolumeCopy pair
To launch the Create Copy Wizard use the following procedure:
1. Stop all I/O activity to the source logical drive and target logical drive.
2. Unmount any file systems on the source logical drive and target logical drive.
3. Select the source logical drive in the Logical View of the Subsystem Management window.
4. Select either the Logical Drive → Copy → Create pull-down menu option, or Create
Copy from the right-mouse pop-up menu.
3、Viewing Logical Copy Drive Properties
4、Using the Copy Manager
5、 Changing the Copy priority
6、 Stopping a Logical Copy
7、Re-copying a Logical Copy Drive
8、Setting the Target Logical Copy Drive Read-Only Attributes
9、 Removing Logical Copy pairs
10、 Viewing the Storage Subsystem Profile
4、增强式远程镜像ERM（enhenced remote mirroring）
The Enhanced Remote Mirroring option is used for online, real-time replication of data
between Storage Subsystems over a remote distance
This section presents an easy-to-follow, step-by-step procedural guide to common
administration tasks for a DS4000 Enhanced Remote Mirroring. The tasks that are covered
include:
Enabling and activating the Enhanced Remote Mirroring premium feature
Creating Enhanced Remote Mirroring relationships
Viewing Enhanced Remote Mirroring properties
Changing Enhanced Remote Mirroring synchronization settings
Changing Enhanced Remote Mirroring write mode
Removing Enhanced Remote Mirroring relationships
