Purpose

This document describes the LUN copy feature of storage system (excluding OceanStor 2600 V3 video surveillance edition), including its working principle, application scenarios. Also, it explains how to configure and manage LUN copy. LUN copy is only supported for LUNs (block services).

Intended Audience

This document is intended for:

• Technical support engineers
• Maintenance engineers

Symbol Conventions

The symbols that may be found in this document are defined as follows.

Symbol	Description
	Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
	Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
	Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
	Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results. NOTICE is used to address practices not related to personal injury.
	Calls attention to important information, best practices and tips. NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration.

Change History

Changes between document issues are cumulative. The latest document issue contains all the changes made in previous issues.

Issue 05 (2018-05-30)

This issue is the fifth official release. The updates are as follows:

Added the case of "How Is Load Balancing Implemented for LUN Copy Between Two Storage Arrays" to FAQ.

Issue 04 (2018-02-05)

This is the fourth official release, which includes the following updates:

Optimized the descriptions about the chapter Feature Description.

Issue 03 (2017-07-31)

This is the third official release, which includes the following updates:

Optimized descriptions about section Impact and Restrictions.

Issue 02 (2016-09-30)

This is the second official release, which includes the following updates:

Modified the description of impact and restrictions.

Added the section "Checking Link Status".

Issue 01 (2016-04-30)

This is the first official release.