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ES3000 V5 NVMe PCIe SSD
User Guide
Step 4 Check whether the following message indicating an incorrect installation package is
displayed.
Error: The installing package does not match the current OS. Please execute
command: rpm -e kmod-hiodriver to uninstall the installing rpm.
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Step 5 Uninstall the installed package as prompted. Upload the correct driver package for the OS to
the server and perform
Step 6 Check whether the following message is displayed. The message indicates that the original
NVMe driver fails to be uninstalled during the installation.
Warning: fail to uninstall the old nvme kernel module. Please uninstall the old
nvme kernel module manually or reboot the system.
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Step 7 Check whether the following message is displayed. The message indicates that the new
NVMe driver fails to be installed during the installation.
Warning: fail to install the new nvme kernel module. Please install the new nvme
kernel module manually or reboot the system.
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Step 8 Check whether restarting the OS will affect services.
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Step 9 Check whether restarting the OS will affect services.
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Step 10 Run the modprobe -r nvme command to uninstall the original driver. During the
uninstallation, check whether a message is displayed indicating that the driver is in use. If yes,
the uninstallation fails.
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Issue 07 (2019-03-19)
NOTE
l If the CPU hardware capabilities are insufficient for processing high-speed I/O services of NVMe
devices during interruption, it is recommended that you configure the NVMe driver to work in
threaded_irq mode before installing it. The configuration method is as follows:
1. Run the vim /etc/modprobe.d/nvme.conf command to create or open the configuration file for
editing.
2. Enter i.
3. In the configuration file, change the value of options nvme use_threaded_interrupts to 1:
options nvme use_threaded_interrupts=1
4. Press Esc, enter :wq, and press Enter to save the edits.
5. Run the chmod +x /etc/modprobe.d/nvme.conf command to change the permission on nvme.conf.
l If the NVMe driver works in threaded_irq mode, the I/O latency increases: Both the 4 KB read
latency and write latency increase by 5 μs.
If yes, go to
Step
5.
If no, go to
Step
6.
Step 2
If yes, go to
Step
9.
If no, go to
Step
7.
If yes, go to
Step
8.
If no, go to
Step
12.
If yes, restart the OS when no service is running and go to
If no, restart the OS and go to
If yes, go to
Step
10.
If no, restart the OS and go to
If yes, restart the OS when no service is running and go to
If no, go to
Step
11.
Copyright © Huawei Technologies Co., Ltd.
again to install the driver.
Step
12.
Step
12.
3 Installation and Configuration
Step
12.
Step
12.
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