Overview
The controller enclosure adopts a modular design and consists of a system subrack, controllers (housing fan modules), Power-BBU modules, and disk modules.
The 2 U controller enclosure of OceanStor 5500 V5, 5600 V5, and 5800 V5 supports only AC power modules. One controller enclosure supports dual controllers.
Overall Structure
Figure 4-78, Figure 4-79, and Figure 4-80 show the overall structures and components of a 2 U 25-disk controller enclosure, a 2 U 12-disk controller enclosure, and a 2 U 36-disk controller enclosure respectively.
The controllers are A and B from top to bottom. Controllers communicate with each other using internal heartbeat and mirroring links and do not need cable connections.
Front View
Figure 4-81, Figure 4-82, and Figure 4-83 show the front views of a 2 U 25-disk controller enclosure, a 2 U 12-disk controller enclosure, and a 2 U 36-disk controller enclosure respectively.
- The disk slots of a 2 U 25-disk controller enclosure are numbered 0 to 24 from left to right. The four coffer disks are located in slot 0 to slot 3. SAS, NL-SAS, and SSD disks can be used as coffer disks, but the type of the four coffer disks must be the same.
- The disk slots of a 2 U 12-disk controller enclosure are numbered 0 to 11 from left to right and from top to bottom. The four coffer disks are located in slot 0 to slot 3. SAS, NL-SAS, and SSD disks can be used as coffer disks, but the type of the four coffer disks must be the same.
- The disk slots of a 2 U 36-disk controller enclosure are numbered 0 to 35 from left to right. Coffer disks are located in slot 0 to slot 3. Coffer disks must be NVMe SSDs.
- Slots are used to accommodate and secure disks, interface modules, controller modules, fan modules, and power modules.
- The information plate records device information.
Rear View
Figure 4-84 and Figure 4-85 show the rear views of controller enclosures.
- Only serial cables can be inserted into the serial ports. Do not insert network cables into the serial ports.
- Do not connect the management network port and maintenance network port to the same LAN or switch to prevent network loops.
- Controllers are numbered A and B from top to bottom. Each controller has six interface module slots. From left to right and from top to bottom, the slot IDs of the interface modules on controller A are numbered IOM 0, IOM 1, IOM 2, IOM 3, IOM 4, and IOM 5.
- Onboard ports include mini SAS HD expansion ports and 100 Gbit/s RDMA ports.
- For the types of interface modules supported by controller enclosures, see Interface Module. It is recommended that front-end interface modules be installed in the following slot sequence: IOM 0 > IOM 1 > IOM 3 > IOM 4 > IOM 5 > IOM 2; back-end expansion modules be installed in the following slot sequence: IOM 5 > IOM 4 > IOM 2 > IOM 1 > IOM 0 > IOM 2. The Scale-out interface module must be installed in slot IOM 2. In the six slots, a maximum of three 12 Gbit/s SAS expansion modules can be installed in the slot sequence of IOM 5 > IOM 4 > IOM 3.
- The maintenance network port is used for special management and maintenance only by Huawei technical support engineers in emergency. The initial IP address of the maintenance network port is 172.31.128.101 or 172.31.128.102. The default subnet mask is 255.255.0.0. You are advised to only connect the management network port to the network.
Hardware Specifications
Table 4-29 lists the dimensions and weight of the controller enclosure. For more specifications, refer to Specifications query (https://support-it.huawei.com/spec/#/home).
Item |
Specifications |
|---|---|
Dimensions (H x W x D) |
|
Weight (excluding disks and auxiliary materials such as guide rails and cables) |
|