[T10] FINISH ZONE commands that specify Sequential Or Before Required zones

Gerry Houlder gerry.houlder at seagate.com
Thu Jun 27 07:50:44 PDT 2019


Seagate supports prohibiting FINISH ZONE, OPEN ZONE, and CLOSE ZONE from
operating on SOBR zones, just like ZAC-2 says.

On Sun, Jun 9, 2019 at 11:15 AM Ralph Weber <Ralph.Weber at wdc.com> wrote:

> The latest T13/ZAC-2 working draft prohibits FINISH ZONE EXT commands from
> requesting that Sequential Or Before Required zones be processed (with a
> suitable error, of course).
>
>
>
> There is no equivalent prohibition in T10/ZBC-2.
>
>
>
> The difference could be a timing anomaly (and T10 needs to play catchup),
> or it could be intentional.
>
>
>
> The T13 motivation for the prohibition was based on the (potentially very
> large) amounts of time required to do the writing necessary to finish
> Sequential Or Before Required zones.
>
>
>
> If a T10 consensus position can be observed on this reflector, then a
> revision of 19-056
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.t10.org_cgi-2Dbin_ac.pl-3Ft-3Dd-26f-3D19-2D056.pdf&d=DwMFAg&c=IGDlg0lD0b-nebmJJ0Kp8A&r=TxI1DC4HavpWBdSmUqvdNvSwgOklhaW328zLt5AOpPM&m=VI_Z10y52M5Lt5UEzLjZbVclXIdqgN5Nh2GqGIh_wXk&s=z7xKNM5hAWYOGDNAqpIbiQtxhjChC6_jj-AetnyzsGE&e=>
> will be uploaded. Otherwise, this will be a CAP discussion topic during the
> consideration of 19-056.
>
>
>
> All the best,
>
>
>
> .Ralph
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