Figure 9-19 Slot IDs
Step 3 Query the bus IDs based on the slots IDs.
Run the following command to query the bus ID of a NVMe PCIe SSD:
cat /sys/bus/pci/slots/$slot/address
In the command, $slot indicates the slot ID, which is obtained in Figure 9-19.
Figure 9-20 Bus IDs that map to slot IDs
As shown in Figure 9-20, the bus ID of the NVMe PCIe SSD in slot 8 is 0000:81:00.
Step 4 Query information about the NVMe PCIe SSD drive letters.
For example, to query information about the NVMe PCIe SSDs in /sys/class/block/, run the
following command:
ls -l /sys/class/block/
Information similar to Figure 9-21 is displayed.
Figure 9-21 Mapping between NVMe PCIe SSD drive letters, bus IDs, and 80 IDs
RH2288 V3 Server
User Guide
9 Common Operations
Issue 32 (2019-03-28) Copyright © Huawei Technologies Co., Ltd. 286
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