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OceanStor 9000 V300R006C20 Hardware Installation Guide 05

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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).
Installing a Disk Module

Installing a Disk Module

After the C72 node is installed into a cabinet, install the disk module.

Prerequisites

Ensure that the following condition is met before installing the disk module:

A C72 node has been installed into the cabinet.

Ensure that the following tools and materials are ready:
  • Phillips screwdriver
  • M6 screw
  • disk module

Context

Restricted by the storage principles, SSDs and HDDs such as NL-SAS, SAS and SATA disks cannot be preserved for a long term while they are powered off.
  • SSDs where no data is stored can be preserved for a maximum of 12 months while they are powered off. SSDs where data has been stored can be preserved for a maximum of 3 months while they are powered off. If the maximum preservation time is exceeded, data loss or SSD failure may occur.
  • Packed HDDs can be preserved for a maximum of six months. Unpacked HDDs that are powered off can be preserved for a maximum of six months too. If the maximum preservation time is exceeded, data loss or disk failure may occur.
  • The maximum preservation time is determined based on the disk preservation specifications provided by the HDD vendor. For details about the specifications, see the manual provided by the vendor.

Procedure

  1. Press the handles on the front panel of the system enclosure and pull out the system enclosure, as shown in Figure 8-81.

    Figure 8-81  Pulling out a C72 node

  2. Insert a disk vertically into a vacant disk slot in the system enclosure and close the disk handle, as shown in Figure 8-82.

    To ensure favorable heat dissipation, install disk modules in the following sequences. Insert filler panels into vacant disk slots if there are any.
    • Evenly allocate disk modules to controller modules A and B. Install disk modules into controller module A first and then into controller module B.
    • The disk modules for controller module A are E0 to E14, D0 to D14, C0 to C3, and C11 to C14, excepting E7 (a cascading module) and D7 (a reserved vacant slot). See Figure 8-83.
    • The disk modules for controller module B are C4 to C10, B0 to B14, and A0 to A14, excepting C7 (a cascading module).
    Figure 8-82  Installing a disk module

    Figure 8-83  Disk slots of a C72

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Updated: 2019-03-26

Document ID: EDOC1000185366

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