Opened 3 months ago
Last modified 3 months ago
#1837 new enhancement
Add NVMe "by-id" symlinks to "-d by-id" device scanning
Reported by: | Rypi | Owned by: | |
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Priority: | minor | Milestone: | undecided |
Component: | all | Version: | |
Keywords: | nvme linux | Cc: |
Description (last modified by )
Symlinks from /dev/disk/by-id works well in smartd and smartctl for SATA drives (/dev/sdX), but not for NVME devices. It would be useful if the same behavior could be used for all drives.
Related: ticket #1390, changeset 4847
root@nas:~# smartctl -d by-id --scan /dev/disk/by-id/ata-ST4000NE001-3CR101_WX10EGSJ -d scsi # /dev/disk/by-id/ata-ST4000NE001-3CR101_WX10EGSJ, SCSI device /dev/nvme0 -d nvme # /dev/nvme0, NVMe device
root@nas:~# ls -l /dev/nvme* crw------- 1 root root 241, 0 čen 1 15:19 /dev/nvme0 brw-rw---- 1 root disk 259, 0 čen 1 15:19 /dev/nvme0n1 brw-rw---- 1 root disk 259, 2 čen 1 15:19 /dev/nvme0n1p1 brw-rw---- 1 root disk 259, 3 čen 1 15:19 /dev/nvme0n1p2 brw-rw---- 1 root disk 259, 4 čen 1 15:19 /dev/nvme0n1p3
root@nas:~# ls -l /dev/disk/by-id/nvme* lrwxrwxrwx 1 root root 13 čen 1 15:19 /dev/disk/by-id/nvme-TS1TMTE220S_G514071565 -> ../../nvme0n1 lrwxrwxrwx 1 root root 15 čen 1 15:19 /dev/disk/by-id/nvme-TS1TMTE220S_G514071565-part1 -> ../../nvme0n1p1 lrwxrwxrwx 1 root root 15 čen 1 15:19 /dev/disk/by-id/nvme-TS1TMTE220S_G514071565-part2 -> ../../nvme0n1p2 lrwxrwxrwx 1 root root 15 čen 1 15:19 /dev/disk/by-id/nvme-TS1TMTE220S_G514071565-part3 -> ../../nvme0n1p3
Change History (4)
comment:1 by , 3 months ago
Keywords: | nvme linux added |
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Milestone: | → undecided |
comment:2 by , 3 months ago
Description: | modified (diff) |
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comment:3 by , 3 months ago
Yes, I meant symlinks in device scan output, so I can for example ignore one specific drive using /dev/disk/by-id/nvme* symlink.
I have no idea about NVMe namespaces and it does not apply to my drives, so I'm unable to suggest any solution here.
comment:4 by , 3 months ago
Summary: | Allow usage of "by-id" symbolic links for nvme devices → Add NVMe "by-id" symlinks to "-d by-id" device scanning |
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Adjust summary accordingly.
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Using such symlinks should also work for NVMe, please try:
smartctl -x /dev/disk/by-id/nvme-TS1TMTE220S_G514071565
Do you possibly mean this instead:
NVMe '"by-id" symlinks should appear in device scan output if
-d by-id
is specified ?If yes, please note that this has been omitted intentionally because such symlinks never point to a
/dev/nvme[0-9]
node. Using the "by-id" symlinks which point to/dev/nvme[0-9]n[1-9]
may result in monitoring the same device multiple times. This only makes sense for devices which support namespace specific Smart/Health Information.Some duplicate detection heuristics would be required. Thanks for any suggestion?