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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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Setting the Capacity of an SSD

Setting the Capacity of an SSD

Function

This command is used to set the current capacity of an SSD.

Format

hioadm capacity -d devicename -s capacitysize

Parameters

Parameter Description Value
devicename Name of an SSD. Example: nvme0
capacitysize

Target capacity.

In Linux and ESXi, 1 GB equals 1000 MB. In Windows, 1 GB equals 1024 MB.

Integer or decimal with a unit.

  • Supported units: G or T. The default unit is G.
  • The value can contain a maximum of one decimal place.

0 indicates that the target capacity is the original capacity.

Usage Guidelines

  • Before running this command, stop all I/O services of the SSD, and unmount all logical disks of the SSD.
  • If a Huawei-developed driver is installed, the setting takes effect immediately. If an open-source or system-provided driver is installed, the setting takes effect after the driver is uninstalled and reinstalled or the server is restarted. After the setting takes effect, the namespace settings automatically restore to the defaults, that is, only one namespace of the configured size exists and is attached to controller 1.

Example

# Set the current capacity of nvme0 to its original capacity.

[root@localhost tool]# hioadm capacity -d nvme0 -s 0
current capacity : 512.0GB (512000000000Byte) 
maximum capacity :     1.6TB (1600321314816Byte) 
You have selected to restore original capacity. 
 
WARNING! The set capacity operation will clear all data. 
WARNING! You have selected the set capacity operation.  
Proceed with the set capacity? (Y|N): y 
Setting...OK 
Setting capacity successed. 
Please remove and then install the NVMe driver or reboot the OS.

System Response

Parameter

Parameter Description

Value

current capacity

Total available capacity (with one decimal place) of the SSD. Unit: GB or TB.

In Linux and ESXi, 1 GB equals 1000 MB. In Windows, 1 GB equals 1024 MB.

Example: 512.0GB (512000000000Byte)

maximum capacity

Original available capacity (with one decimal place) of the SSD. Unit: GB or TB.

In Linux and ESXi, 1 GB equals 1000 MB. In Windows, 1 GB equals 1024 MB.

Example: 1.6TB (1600321314816Byte)

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Updated: 2019-03-12

Document ID: EDOC1000101091

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