Oracle netra X5-2, Руководство по обслуживанию

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Unmount an NVMe Storage Drive (Oracle Linux)
/sys/devices/pci0000:80/0000:80:03.0/0000:b0:00.0/0000:b1:05.0/ 0000:b4:00.0 /misc/
nvme1
In this example, the PCIe addresses are highlighted in bold text.
b. Obtain the slot number (APIC ID) for the bus address for all of the PCIe slot
numbers and the corresponding bus addresses.
# egrep –H ‘.*’ /sys/bus/pci/slots/*/address
This command returns output similar to the following:
/sys/bus/pci/slots/10/address:0000:b8:00
/sys/bus/pci/slots/11/address:0000:b6:00
/sys/bus/pci/slots/12/address:
0000:b2:00 (instance nvme0, pcie slot 12, drive label
nvme2)
/sys/bus/pci/slots/13/address:
0000:b4:00 (instance nvme1, pcie slot 13, drive label
nvme3)
In this example, the bus addresses for the corresponding NVMe instances are highlighted
in bold text.
Note -
In the output, the instance names for the NVMe drives do not correspond to the NVMe
drive labels on the server. For example,
pci/slots/12/address: 0000:b2:00
corresponds to
instance
nvme0
. However, on the server, this drive is labeled NVMe2.
c. Disconnect all users of the NVMe drive, and back up the NVMe drive data as
needed.
i.
Use the
umount
command to unmount any file systems that are mounted
on the device.
ii. Remove the device from any multiple device (md) and Logical Volume
Manager (LVM) volume.
If the device is a member of an LVM Volume group, it might be necessary to move
data off the device using the
pvmove
command. Then, use the
vgreduce
command to
remove the physical volume, and optionally, use the
pvremove
command to remove
the LVM meta data from the disk.
iii.
If the device uses multipathing, run
multipath -l
, and note all of the
paths to the device. Then, remove the multipathed device using the
multipath -f device
command.
iv.
Run the
blockdev --flushbufs device
command to flush any outstanding
I/O on all paths to the device.
Servicing NVMe Storage Drives, Switch Card, and Cables 105