On Tue, Aug 24, 2021 at 02:47:29PM +0200, Karel Zak wrote:
> On Tue, Aug 24, 2021 at 10:17:16AM +0900, Naohiro Aota wrote:
> > Several parameters for zoned devices are missing from lsblk's columns. This
> > series introduces them as following.
>
> Thanks! I thought about it a few weeks ago ;-)
>
> >
> > Column Name Description Sysfs path
> > ---------------------------------------------------------------------
> > ZONE-SIZE zone size queue/chunk_sectors
> > ZONE-WGRAN zone write granularity queue/zone_write_granularity
> > ZONE-APPEND zone append max bytes queue/zone_append_max_bytes
> > ZONES-NR number of zones queue/nr_zones
> > ZONES-OMAX max open zones queue/max_open_zones
> > ZONES-AMAX max active zones queue/max_active_zones
> >
> > Sample output:
> >
> > $ lsblk -o NAME,ZONED,ZONE-SIZE,ZONE-WGRAN,ZONE-APPEND,ZONES-NR,ZONES-OMAX,ZONES-AMAX -i
>
> What about to add all the columns to "--zoned" output too?
>
> We do not keep backward compatibility for set of columns in outputs
> like --zoned, so it's open for changes. I guess we can use --zoned as
> a generic option for all zoned stuff and not for a model only.
Nice idea. I'll add a patch for that.
> > NAME ZONED ZONE-SIZE ZONE-WGRAN ZONE-APPEND ZONES-NR ZONES-OMAX ZONES-AMAX
> > sda host-managed 256M 4K 672K 55880 128 0
> > sdb host-managed 256M 4K 672K 55880 128 0
> > zram0 none 0B 0B 0B 0 0 0
> > nvme2n1 none 0B 0B 0B 0 0 0
> > |-nvme2n1p1 none 0B 0B 0B 0 0 0
> > |-nvme2n1p2 none 0B 0B 0B 0 0 0
> > `-nvme2n1p3 none 0B 0B 0B 0 0 0
> > nvme0n1 none 0B 0B 0B 0 0 0
> > nvme1n1 none 0B 0B 0B 0 0 0
> > nvme0n2 host-managed 2G 4K 4M 1844 14 14
> > nvme1n2 host-managed 2G 4K 4M 1844 14 14
> >
> > $ lsblk --help|grep -i zone
> > -z, --zoned print zone model
> > ZONED zone model
> > ZONE-SIZE zone size
> > ZONE-WGRAN zone write granularity
> > ZONE-APPEND zone append max bytes
> > ZONES-NR number of zones
> > ZONES-OMAX max open zones
> > ZONES-AMAX max active zones
>
> It would be nice to have shorter column names, but I do not have any
> sane suggestion (Z-SIZE or Z-APPEND seems strange).
Hmm, considering we already have DISC-{ALN,GRAN,MAX,ZERO}, how about
ZONE-{SZ,GRAN,APP,NR,OMAX,AMAX}?
> Karel
>
> --
> Karel Zak <kzak@xxxxxxxxxx>
> http://karelzak.blogspot.com
>
