Qsan XCubeNAS Series Quick reference guide

XCubeNAS Series White Paper
WORM
QSAN Technology, Inc. www.qsan.com
© Copyright 2017 QSAN Technology, Inc. All rights reserved.
No part of this document may be reproduced or transmitted without written permission from QSAN Technology, Inc.

Edition 1.0 (January 2018)
This edition applies to QSAN XCubeNAS NAS storage systems. QSAN believes the information in this
publication is accurate as of its publication date. The information is subject to change without notice.
Trademarks
QSAN, the QSAN logo, XCubeNAS, and QSAN.com are trademarks or registered trademarks of QSAN
Technology, Inc.
Intel, Xeon, Pentium, Core, Celeron and Intel Inside logo are trademarks of Intel Corporation in the
United States and other countries.
Other trademarks and trade names used in this document to refer to either the entities claiming the
marks and names or their products are the property of their respective owners.

Contents iii
Notices
The Information contained in this manual has been reviewed for accuracy. It may include
typographical errors or technical inaccuracies. Changes are made to the document
periodically. These changes will be incorporated in new editions of the publication. QSAN
may make improvements or changes in the products. All features, functionality, and product
specifications are subject to change without prior notice or obligation. All statements,
information, and recommendations in this document do not constitute a warranty of any
kind, express or implied.
Any performance data contained herein was determined in a controlled environment.
Therefore, the results obtained in other operating environments may vary significantly. Some
measurements may have been made on development-level systems and there is no
guarantee that these measurements will be the same on generally available systems.
Furthermore, some measurements may have been estimated through extrapolation. Actual
results may vary. Users of this document should verify the applicable data for their specific
environment.
This information contains examples of data and reports used in daily business operations.
To illustrate them as completely as possible, the examples include the names of individuals,
companies, brands, and products.
All of these names are fictitious and any similarity to the names and addresses used by an
actual business enterprise is entirely coincidental.

iv © Copyright 2017 QSAN Technology, Inc. All Right Reserved.
Table of Contents
Notices ......................................................................................................................................... iii
Preface ..........................................................................................................................................1
About This Manual .......................................................................................................................... 1
Related Documents......................................................................................................................... 1
Technical Support ........................................................................................................................... 2
Information, Tip and Caution.......................................................................................................... 2
Conventions..................................................................................................................................... 3
1. Overview...............................................................................................................................4
1.1. Introduction ......................................................................................................................... 4
1.2. Prerequisites ....................................................................................................................... 4
1.3. Concept................................................................................................................................ 5
2. Instruction............................................................................................................................9
2.1. Plan and identify WORM policy to apply ......................................................................... 10
2.2. WORM Configuration........................................................................................................ 11
2.3. Summary ........................................................................................................................... 20
2.4. Apply to.............................................................................................................................. 20
3. Support and Other Resources ..........................................................................................21
3.1. Getting Technical Support................................................................................................ 21
3.2. Documentation Feedback ................................................................................................ 22
Appendix .....................................................................................................................................23
End-User License Agreement (EULA) .......................................................................................... 23

1
Preface
About This Manual
This manual provides technical guidance for implementation of WORM feature on QSAN
XCubeNAS system, and it is intended for use by system administrators, NAS designers,
storage consultants, or anyone who has purchased this product and is familiar with servers
and computer networks, network administration, storage system installation and
configuration, network attached storage management and relevant protocols.
CAUTION:
Do NOT attempt to service, change, disassemble or upgrade the
equipment’s components by yourself. Doing so may violate your warranty
and expose you to electric shock. Refer all servicing to authorized service
personnel. Please always follow the instructions in this owner’s manual.
Related Documents
There are related documents which can be downloaded from the website.
XCubeNAS QIG (Quick Installation Guide): https://www.qsan.com/en/download.php
Compatibility Matrix: https://www.qsan.com/en/download.php
XCubeNAS QSM 3.0 User Manual: https://www.qsan.com/en/download.php
XCubeNAS Hardware Manual: https://www.qsan.com/en/download.php
Online FAQ: https://www.qsan.com/en/faq.php
White Papers: https://www.qsan.com/en/download.php
Application Notes: https://www.qsan.com/en/download.php

2© Copyright 2017 QSAN Technology, Inc. All Right Reserved.
Technical Support
Do you have any questions or need help troubleshooting a problem? Please contact QSAN
Support, we will reply to you as soon as possible.
Via the Web: http://www.qsan.com/en/contact_support.php
Via Telephone: [phone] extension 136
(Service hours: 09:30 - 18:00, Monday - Friday, UTC+8)
Via Skype Chat, Skype ID: qsan.support
(Service hours: 09:30 - 02:00, Monday - Friday, UTC+8, Summertime: 09:30 - 01:00)
Via Email: [e-mail]
Information, Tip and Caution
This manual uses the following symbols to draw attention to important safety and
operational information.
INFORMATION:
INFORMATION provides useful knowledge, definition, or terminology for
reference.
TIP:
TIP provides helpful suggestions for performing tasks more effectively.
CAUTION:
CAUTION indicates that failure to take a specified action could result in
damage to the system.

3
Conventions
The following table describes the typographic conventions used in this manual.
Conventions
Description
Bold
Indicates text on a window, other than the window title, including
menus, menu options, buttons, fields, and labels.
Example: Click the OK button.
<Italic>
Indicates a variable, which is a placeholder for actual text provided
by the user or system.
Example: copy <source-file> <target-file>.
[ ] square
brackets
Indicates optional values.
Example: [ a | b ] indicates that you can choose a, b, or nothing.
{ } braces
Indicates required or expected values.
Example: { a | b } indicates that you must choose either a or b.
| vertical bar
Indicates that you have a choice between two or more options or
arguments.
/ Slash
Indicates all options or arguments.
underline
Indicates the default value.
Example: [ a | b ]

4© Copyright 2017 QSAN Technology, Inc. All Right Reserved.
1. Overview
This white paper introduces implementation procedures and the concept of WORM which
includes three types of retention settings that allows the administrator to fit different
retention period requirement, and techniques of verifying the effectiveness of WORM
settings.
1.1. Introduction
WORM stands for "Write Once Read Many," and it is the unique feature designed by QSAN
and comes with XCubeNAS. For occasion or application that requires a higher level of
security of file correctness or the behavior of file unchangeable for such as, surveillance
video recording, ongoing project documentation, submission, and document editing with
multiple editions to preserve for a limited period without changing access permission of
related accounts.
1.2. Prerequisites
This white paper provides technical guidance for designing and implementing “Write
Once Read Many; WORM” feature, and it is intended for use by system administrators,
NAS designers, storage consultants, or anyone who has purchased this product and
is familiar with server and computer network, network administration, storage
system installation and configuration, network attached storage management, and
relevant protocols.
Before proceeding to instructions of this white paper, it is assumed that you have fully read
and understood the detail of QSAN product related document before proceeding to
implementation.
XCubeNAS QIG (Quick Installation Guide): https://www.qsan.com/en/download.php
XCubeNAS Hardware Manual: https://www.qsan.com/en/download.php
XCubeNAS QSM 3.0 User Manual: https://www.qsan.com/en/download.php

5
TIP:
Please read related manuals and documents if not familiar with these
operations.
1.3. Concept
WORM (Write Once, Read Many) –
When WORM is enabled, the folder with WORM is intentionally not rewriteable, data are
written remains as read-only (protected from modify/delete) until the end of the specified
retention days.
Purpose of WORM is to satisfy the demand for compliance, data archive, electronic record
protection, prevent intentional and unintentional deletion of files, virus attack.
WORM is applicable for fields and industries such as Security, Education, Medical, Finance,
Research facility, Patents, Government Agencies or Large Enterprises that have a high
demand for data security.
The three available policies for WORM protection:
Figure 1-1 Three Policies of WORM Protection
INFORMATION:
WORM (Write Once, Read Many) – When WORM is enabled, data written in
this Shared Folder will remain as read-only (protected from modify/delete)
until the end of the specified retention days. If a Shared Folder is enabled
with WORM, this Shared Folder cannot be deleted with data still inside.

6© Copyright 2017 QSAN Technology, Inc. All Right Reserved.
WORM protection policy: Protect this forever
Retention start date of Share Folder: Jan/1st
Retention expiry date of Share Folder, Subfolders and Files: Retention period is ∞ forever
Example: Protect this forever: Retention Unlimited days
Figure 1-2 Detail Structure of WORM Policy: Protect This Forever
CAUTION:
Once the WORM is set to forever, the WORM can’t be removed and reset
device to default factory settings.