Thai Nguyen <[email protected]> writes:
> Hi,
>
> I am looking for a way that I can retrieve a disk device name like
> “/dev/dsk/c5d0s0”. The old codes for other OS, like linux, FreeBSD,
> etc. I can use command/API like “devnm”, “mount”, “devname_r”, to get
> it. However, under ZFS, all above command/API returned Volume
> Name/Mount Point, like “/export/home” or “rpool/export/home”
>
> Any one knows how to get the real disk device name, please help.
> Thank you so much in advance. Thai.
In ZFS there is no reason to assume that a file is on a single
device. It could be spread across dozens of devices depending on the
pool layout. The only meaningful "one thing" that a file is on is either
the dataset (filesystem) or pool.
If you want to see device names used in a ZFS pool you need to use
zpool:
$ zpool status
pool: rpool
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
c3t0d0s0 ONLINE 0 0 0
errors: No known data errors
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