hi.
i use patriot nvme (cheap 128GB) on pci express card on archman linux ( of course non boot drive , boot drive is m.2 ssd sata type) .
my /etc/fstab is
UUID=25CF-03A2 /boot/efi vfat defaults,noatime 0 2
UUID=35955ee3-5e77-4ece-a964-b35bb227fd75 / ext4 defaults,noatime,discard 0 1
UUID=64a1b0c2-4982-4719-b616-d239b576c37a swap swap defaults,noatime 0 2
tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0
UUID=411d1ec4-2b35-46e0-9c04-ed883098c72f /home ext4 defaults,noatime 0 1
here
blkid /dev/nvme0n1p1
/dev/nvme0n1p1: UUID="411d1ec4-2b35-46e0-9c04-ed883098c72f" TYPE="ext4" PARTUUID="741b2761-01"
and
df is
Filesystem 1K-blocks Used Available Use% Mounted on
dev 1718216 0 1718216 0% /dev(non boot drive)
run 1725672 9072 1716600 1% /run
/dev/sda2 60973908 10865768 47058800 19% /
tmpfs 1725672 65724 1659948 4% /dev/shm
tmpfs 1725672 0 1725672 0% /sys/fs/cgroup
tmpfs 1725672 37028 1688644 3% /tmp
/dev/nvme0n1p1114290180 6921128 101520408 7% /home
/dev/sda1 306584 304 306280 1% /boot/efi
tmpfs 345132 20 345112 1% /run/user/1001
hdparm -Tt --direct /dev/nvme0n1
/dev/nvme0n1:
Timing O_DIRECT cached reads: 1340 MB in 2.00 seconds = 670.37 MB/sec
HDIO_DRIVE_CMD(identify) failed: Inappropriate ioctl for device
Timing O_DIRECT disk reads: 2084 MB in 3.00 seconds = 694.45 MB/sec
my mvme is not x4 but x2 so not very fast .
i write down on https://qiita.com/tyokai/items/cb78b2101a0d18706f53 but in japanese .
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regards