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Capacity Expansion Guide

OceanStor 18000 V3 Series V300R006

This document is applicable to OceanStor 18500 V3 and 18800 V3. It instructs operators to expand capacity for storage systems online from the perspectives of the capacity expansion process, planning, and implementation.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
About This Document

About This Document

Purpose

This document instructs operators to expand capacity for the storage system from the perspectives of capacity expansion process, planning, and implementation.

The following table lists the product models that this document is applicable to.

Product Series

Product Model

OceanStor 18000 V3 series

OceanStor 18500 V3 and 18800 V3

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 earlier issues.

Issue 11 (2019-05-15)

This is the eleventh official release, including the following changes:

Optimized some descriptions.

Issue 10 (2019-01-10)

This is the tenth official release, including the following changes:

Added section Determining the Maximum Number of Cascaded Disk Enclosures in a Loop.

Issue 09 (2018-12-06)

This is the ninth official release, including the following changes:

Optimized some descriptions about section Using SmartKit to Expand Controllers.

Added section Expanding a Disk Domain.

Added section Modifying Capacity of a Storage Pool.

Issue 08 (2018-07-30)

This is the eighth official release, including the following changes:

Optimized some descriptions.

Added Procedure for Expanding Controllers.

Issue 07 (2018-06-30)

This is the seventh official release, including the following changes:

Optimized some descriptions.

Issue 06 (2018-05-09)

This is the sixth official release, including the following changes:

Added section Expansion Rollback (Applicable to V300R006C20 and Later).

Added Performing the Pre-expansion Evaluation.

Updated Using SmartKit to Expand Controllers.

Issue 05 (2018-01-30)

This is the fifth official release, including the following changes:

Optimized some descriptions.

Issue 04 (2017-11-30)

This is the fourth official release, including the following changes:

Optimized some descriptions.

Added the mappings between SAS ports and loop IDs.

Issue 03 (2017-10-30)

This is the third official release, including the following changes:

Optimized the content about capacity used by hot spare space.

Updated the supported RAID levels to RAID 0, RAID 1, RAID 3, RAID 5, RAID 6, RAID 10, and RAID 50.

Issue 02 (2017-08-30)

This is the second official release, including the following changes:

Updated the download path of third-party software.

Added precautions about performing controller expansion assessment for storage systems if the ALUA function is enabled for service hosts in section Adding Controllers.

Issue 01 (2017-06-01)

This is the first official release.

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Updated: 2019-05-15

Document ID: EDOC1000157278

Views: 31244

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