Prepare An Nvme Storage Drive For Removal - Oracle X5-4 Service Manual

Prepare an NVMe Storage Drive for Removal

This section provides instructions for how to remove and replace an NVMe storage drive on a
server that is running the Oracle Linux operating system.
"Prepare an NVMe Storage Drive for Removal" on page 126
■
"Remove an NVMe Storage Drive From the Server" on page 128
■
"Verify Removal of an NVMe Storage Drive" on page 128
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"Install an NVMe Storage Drive In the Server" on page 129
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"Power On an NVMe Storage Drive" on page 129
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Prepare an NVMe Storage Drive for Removal
Linux NVMe hot plug requires the kernel boot argument "pci=pcie_bus_perf" be set in
Before You Begin ■
order to get proper MPS (MaxPayloadSize) and MRR (MaxReadRequest). Fatal errors will
occur without this argument.
For a list of the virtual PCIe slots of NVMe drives as seen by the operating system, see
■
"NVMe Storage Drive Virtual PCIe Slot Designation" on page
PCIe slot name is not the same as the name on the server front panel label.
1. Log in to Oracle Linux that is running on the server.
2. Obtain information about available NVMe storage devices.
a. Obtain the PCIe addresses (Bus Device Function) of enabled NVMe drives.
Type:
#
This commands returns output similar to the following:
/sys/devices/pci0000:00/0000:00:02.2/0000:10:00.0/0000:11:04.0/0000:12:00.0/misc/
nvme0
/sys/devices/pci0000:00/0000:00:02.2/0000:10:00.0/0000:11:05.0/0000:13:00.0/misc/
nvme1
/sys/devices/pci0000:00/0000:00:02.2/0000:10:00.0/0000:11:06.0/0000:14:00.0/misc/
nvme2
/sys/devices/pci0000:00/0000:00:02.2/0000:10:00.0/0000:11:07.0/0000:15:00.0/misc/
nvme3
For example, 0000:12:00.0 matches the PCIe address of the drive labeled NVMe0 on the
system front panel.
Obtain the PCIe virtual slot number (APIC ID). Type:
b.
#
126 Oracle Server X5-4 Service Manual • December 2015
find /sys/devices |egrep 'nvme[0-9][0-9]?$'
egrep -H '.*' /sys/bus/pci/slots/*/address
115. Note that the virtual