Cc: Martin Wilck <mwilck@xxxxxxxx> Cc: Benjamin Marzinski <bmarzins@xxxxxxxxxx> Cc: Christophe Varoqui <christophe.varoqui@xxxxxxxxxxx> Cc: DM-DEVEL ML <dm-devel@xxxxxxxxxx> Signed-off-by: Xose Vazquez Perez <xose.vazquez@xxxxxxxxx> --- README.nvme | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 README.nvme diff --git a/README.nvme b/README.nvme new file mode 100644 index 00000000..70bf6b0d --- /dev/null +++ b/README.nvme @@ -0,0 +1,12 @@ +To use Device Mapper/multipath-tools with NVMe devices, +if the Native NVMe Multipath subsystem is enabled +( "Y" in /sys/module/nvme_core/parameters/multipath ), +it has to be disabled: + +echo "options nvme_core multipath=N" > /etc/modprobe.d/01-nvme_core-mp.conf +regenerate the initramfs (dracut -f or update-initramfs) and reboot. + +Check that it is disabled(N) with: +cat /sys/module/nvme_core/parameters/multipath +or +systool -m nvme_core -A multipath -- 2.35.1 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/dm-devel
