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ES3000 V3 NVMe PCIe SSD User Guide 20

This document provides the product information about the Huawei ES3000 V3 PCIe SSD (ES3000 V3 for short) and describes how to install, configure, operate, and maintain the ES3000 V3.
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Attaching a Namespace to an NVMe Controller

Attaching a Namespace to an NVMe Controller


This command is used to attach a namespace to an NVMe controller.


hioadm namespace -d devicename -t operationtype -i namespaceid -c controllerid


Parameter Description Value
devicename Name of a device. Example: nvme0
operationtype Operation Type
  • 0: Create a namespace.
  • 1: Delete a namespace.
  • 2: Attach a namespace.
  • 3: Detach a namespace.
  • 6: Set the number of namespaces.

Select 2 in this command.

namespaceid ID of a namespace. -
controllerid ID of an NVMe controller.

The ES3000 V3 SSD has only one controller. The value of this parameter is 1.


Usage Guidelines

If a Huawei-developed driver is installed, the setting takes effect immediately without needing to stop I/O services. If an open-source or system-provided driver is installed, the setting takes effect after the server is restarted.


# Attach namespace 1 of the nvme0 SSD to NVMe controller 1.

[root@localhost tool]#  hioadm namespace -d nvme0 -t 2 -i 1 -c 1
attaching the namespace successed. 
Please remove and then install the NVMe driver or reboot the OS.

System Response

If attach failed is displayed, the operation failed. The failure causes are as follows:
  • The namespace is already attached to the NVMe controller.
  • The NVMe controller ID is invalid.
Updated: 2019-03-12

Document ID: EDOC1000101091

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