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OceanStor S2600T, S5500T, S5600T, S5800T, and S6800T Storage System V200R002 Online Capacity Expansion 08

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

About This Document

Intended Audience

This document instructs operators to expand capacity for the OceanStor S2600T/S5500T/S5600T/S5800T/S6800T storage system from the perspectives of capacity expansion process, planning, and implementation.

This document is intended for:
  • Technical support engineers
  • Maintenance engineers


As part of an effort to improve and enhance the product performance and capabilities, Huawei periodically releases revisions of the hardware and software. Therefore, some functions described in this document may not be supported by all versions of the software or hardware currently in use. For the most up-to-date information about product features, refer to the product release notes.

If a product does not function as described in this document, contact Huawei technical support.

Change History

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

Issue 08 (2018-08-15)

This issue is the eighth official release.

  • Added the chapter of Evaluating the Capacity Expansion Solution.
  • Added the chapter of Expanding Disks Using Toolkit.
  • Added the chapter of Expanding Disk Enclosures Using Toolkit.
  • Added the chapter of Expanding Links Using Toolkit.
  • Updated the chapter of Expanding a Controller Enclosure Using Toolkit.

Issue 07 (2018-03-30)

This issue is the seventh official release.

  • Added the description of using Toolkit for post-expansion checks.
  • Added the description of how to obtain ESN.
  • Added the methods of checking host status in Red Hat and VMware operating systems.
  • Added the rules of allocating interface module slots.

Issue 06 (2017-07-07)

This issue is the sixth official release.

Rectified some description.

Issue 05 (2016-11-30)

This issue is the fifth official release.

  • Added a suggestion that the capacity of a newly added disk should be the same as that of any disk at the same storage layer.
  • Added the procedure for checking disk utilization.
  • Added description about using UltraPath V100R008C50SPC200 or later for 2 TB LUNs in the specified Linux scenario.
  • Added workaround for service interruption due to loss of the IP address bound to a port after disk enclosure expansion.

Issue 04 (2016-05-17)

This issue is the fourth official release.

  • Added two types of disks used for capacity expansion.
  • Added restrictions on capacity expansion to section "Overview".

Issue 03 (2016-03-01)

This is the third official release.

  • Added the method of rolling back controller enclosure expansion.
  • Added the method of adding a link.
  • Added the method of adding LUNs for storage space expansion.
  • Added the method of expanding capacity using commands only.

Issue 02 (2015-06-30)

This is the second official release.

Updated capacity calculation methods.

Issue 01 (2014-12-29)

This issue is the first official release.

Updated: 2018-09-03

Document ID: EDOC1000062962

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