[T10] Deprecation phase?
joe at lingua-data.com
joe at lingua-data.com
Wed Mar 16 11:48:49 PDT 2022
Further, ‘obsolete’ doesn’t quite mean ‘don’t do that’, so much as ’this is on its way out (i.e., deprecated) - if you want to use it, you need to look at a previous version of the standard for the definition:
“
3.3.5 obsolete
keyword indicating that an item was defined in prior SCSI standards but has been removed from this standard
“
(SPC-5 r22)
Eventually, the status of a thing might move to using fields which get redefined as ‘reserved’ - that's the ‘don’t do that’ directive.
Joe Breher
Manager,
lingua data, LLC
(478) 2-Breher
(478) 227-3437
> On Mar 16, 2022, at 11:29 AM, Ballard, Curtis C (HPE Storage) <curtis.ballard at hpe.com> wrote:
>
> Mike,
>
> T10 doesn’t use ‘deprecated’ but for these the committee felt that something like that was needed and started the process many years ago. I didn’t look to see how many years back but I know it was quite a few.
>
> The following statement is an example from the MODE SELECT 6 command description:
> “Implementations should migrate from the MODE SELECT(6) command to the MODE SELECT(10) command.”
>
> A corresponding statement is in MODE SENSE 6.
>
> Curtis Ballard
> Hewlett Packard Enterprise
>
> From: t10-bounces at t10.org <mailto:t10-bounces at t10.org> <t10-bounces at t10.org <mailto:t10-bounces at t10.org>> On Behalf Of Michael Webster
> Sent: Wednesday, March 16, 2022 10:11 AM
> To: t10 at t10.org <mailto:t10 at t10.org>
> Subject: [T10] Deprecation phase?
>
> I see Gerry Houlder starting a discussion about making 6-byte MODE SENSE and MODE SELECT obsolete.
>
> Does T10 (or ANSI) have any policy about having a Deprecation phase?
>
> In other words do features move from "Supported" directly to "Obsolete" in one move or is there a defined "Deprecation" state where the feature remains but is disapproved for a period of time (e.g., one year) to give users a warning that they should avoid the feature because it will soon become obsolete?
>
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