A special design enables greater heat dissipation. The air volume of fans used for high-density disk enclosures is larger than that of fans used for common disk enclosures. In addition, the air duct system is optimized to dissipate heat.
Cascading levels of disk enclosures in OceanStor V3 V300R001:
A SAS port supports a maximum of eight disk enclosures. However, it is a good practice to connect at most five disk enclosures to one SAS port and eight high-density disk enclosures to two SAS ports.
V3 disk enclosures are described as follows:
A disk enclosure adopts a modular design and consists of a system enclosure, expansion modules, power modules, and disk modules.
All enclosures are evenly distributed among the SAS ports. The quantity difference of disk enclosures connected to each SAS port cannot exceed one.
For details about the networking, see the Huawei Storage Networking Assistant:
http://support.huawei.com/onlinetoolsweb/sna/?language=en
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