Figure 4-12 System subrack
4.2.2.2 Controller
A controller is the core component of a storage system. It processes storage services, receives
configuration management commands, saves configuration data, connects to disk enclosures,
and saves critical data onto coffer disks.
NOTE
Each controller has two built—in disks. The disks are used to store the configuration data of the storage
system, data in cache after a power failure, and OceanStor OS data. The disks in controller and those in
another are redundant for each other.
Appearance
Each controller supports two interface modules.
Figure 4-13 shows the appearance of a controller.
OceanStor 2600 V3
Product Description
4 Hardware Architecture
Issue 09 (2019-05-15) Copyright © Huawei Technologies Co., Ltd. 23
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