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Connecting 100G QSFP28 Cables (Scenario with Smart Disk Enclosures Only)
If a disk bay contains smart disk enclosures, connect the disk bay to a system bay using 100G QSFP28 cables.
Prerequisites
When connecting a system bay to a disk bay using 100G QSFP28 cables, you need to remove the four side panels (two in the system bay and two in the disk bay) that are next to each other so that the 100G QSFP28 cables can be routed through two bays.
Context
Before connecting the 100G QSFP28 cable, read carefully and follow the cascading rules:
- The 100G QSFP28 cables between a disk bay and a system bay have been bound and connected to the disk bay before delivery. At the site, you only need to connect the cables to the system bay according to the labels on the cables.
- A 100G QSFP28 cable between a disk bay and a system bay is 15 meters long. Labels have been attached to the cables before delivery. You do not need to prepare labels at site.
Procedure
- Find the 100G QSFP28 cables that are used for cross-bay connection in the disk bay and cut the 100G QSFP28 cable ties.
- Connect cables according to the guidance information provided on the labels.The following figures use the controller enclosure in system bay 0 configured with eight pairs of 100 Gbit/s RDMA expansion modules as an example to describe how to connect 100G QSFP28 cables.
- You can obtain more network diagrams from Huawei Storage Product Networking Assistant (https://support.huawei.com/onlinetoolsweb/sna/#/home).
- DAE0XX indicates the No. of a disk enclosure. For details, see Rules for Determining Loop IDs and Disk Enclosure IDs.
Figure 9-23 System bay and disk bay networking (18000 V5)Figure 9-24 System bay and disk bay networking (18000F V5)After a disk enclosure is connected into a storage system and powered on, do not change its position in the storage system; otherwise, its enclosure ID cannot be correctly displayed, its performance may deteriorate, and some of its storage resources may become unavailable.
