Purpose

This document describes the file system WORM feature of storage system , including its working principle, application scenarios, configuration process, and reference information.

Intended Audience

This document is intended for:

• Technical support engineers
• Maintenance engineers
• Administrator
• User

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 earlier issues.

Issue 10 (2018-05-30)

This issue is the tenth official release. The updates are as follow:

Optimized some descriptions.

Issue 09 (2018-02-05)

This issue is the ninth official release. The updates are as follow:

Optimized some descriptions.

Issue 08 (2017-11-30)

This issue is the eighth official release. The updates are as follow:

Optimized descriptions about the chapter Creating a Disk Domain.

Issue 07 (2017-07-10)

This issue is the seventh official release. The updates are as follow:

Optimized descriptions about section Impact and Restrictions.

Issue 06 (2017-03-27)

This issue is the sixth official release. The updates are as follow:

Optimized the document description.

Issue 05 (2016-11-20)

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

Optimized the document description.

Issue 04 (2016-07-25)

This issue is the fourth official release. The updates are as follow:

Optimized the document structure.

Added the restrictions on applying the WORM feature.

Issue 03 (2016-04-30)

This issue is the third official release. The updates are as follow:

Optimized descriptions about sections Configuration Example and Configuration and Management.

Issue 02 (2015-12-10)

This issue is the second official release. The updates are as follow:

Description about principles is optimized.

Issue 01 (2015-08-30)

This issue is the first official release.