About This Document
Purpose
This document instructs operators to expand capacity for the OceanStor 18500 V3/18800 V3 mission critical storage system from the perspectives of capacity expansion process, planning, and implementation.
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.
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Description |
|---|---|
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Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. |
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Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. |
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Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. |
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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. |
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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 13 (2018-08-30)
This is the thirteenth official release.
- Added Mappings Between SAS Ports and Loop IDs.
- Added Procedure for Expanding Controllers.
- Optimized some descriptions.
Issue 12 (2018-05-30)
This is the twelfth official release.
Optimized some descriptions.
Issue 11 (2018-05-15)
This is the eleventh official release.
- Added Performing the Pre-expansion Evaluation.
- Added Expand Disks Using SmartKit.
- Added Expand Disk Enclosures Using SmartKit.
- Added Expand Links Using SmartKit.
- Updated Using SmartKit to Expand Controllers.
Issue 10 (2018-02-05)
This is the tenth official release.
Updated the max number of disk enclosures connected to back-end channels.
Issue 09 (2017-11-30)
This is the ninth official release.
Optimized the description of 8 Gbit/s Fibre Channel interface module as 8 Gbit/s Fibre Channel interface module (4 ports).
Issue 08 (2017-10-30)
This is the eighth official release.
- Optimized the content about capacity used by hot spare space.
- Added the rule that the RAID policy is set to RAID 6 when the capacity tier consists of NL-SAS disks in section Planning Capacity Expansion.
- Added a warning about responsibility ownership and risks of capacity expansion in section Expanding LUN Capacity.
- Updated the supported RAID levels to RAID 0, RAID 1, RAID 3, RAID 5, RAID 6, RAID 10, and RAID 50.
Issue 07 (2017-07-20)
This is the seventh official release.
- Optimized the description in section Performing the Pre-expansion Check.
- Added precautions in section Adding Controllers.
Issue 06 (2017-05-10)
This is the sixth official release. The updates are as follows:
- Added It is recommended that the capacity of added disks is the same as that of disks in the storage layer that requires capacity expansion.
- Added How to expand the capacity of a LUN used in the HyperMetro feature.
- Added Before adding controllers, ask Huawei technical support engineers to apply for a spare controller in advance and bring it to the site. in Making Capacity Expansion Plans.
Issue 05 (2017-03-24)
This is the fifth official release. The updates are as follows:
Added the license description of the OceanStor 18500 V3 and 18800 V3 storage systems’ HyperReplication (for block), HyperSnap (for block), HyperClone, HyperMetro, or SmartTier feature and restrictions on applying for license capacity.
Issue 04 (2016-11-20)
This is the fourth official release. The updates are as follows:
- Added Adding Controllers.
- Optimized Expanding Capacity Using Commands.
Issue 03 (2016-07-25)
This is the third official release. The updates are as follows:
- Added the (Optional) Adding Third-Party Disk Bays section, which describes how to expand the capacity by adding disk bays in third-party bay delivery mode.
- Added the method and principles of routing cables when expanding the capacity of disk bays.
Issue 02 (2016-04-30)
This is the second official release.
Optimized some description.
Issue 01 (2015-12-10)
This is the first official release.
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