On 3/26/23 16:44, Christoph Hellwig wrote:
On Fri, Mar 24, 2023 at 10:05:48AM -0700, Bart Van Assche wrote:
If someone else wants to work on this that would be great. I do not plan to
work on this because I do not expect that a SCSI zone append command would
be standardized by the time we need it. Although there are references to
T10 drafts in the UFS standard, since a few months JEDEC strongly prefers
to refer to finalized external standards in its own standards. Hence,
standardizing zoned storage for UFS would have to wait until T10 has
published a standard that supports a zone append command. INCITS published
ZBC-1 in 2016, two years after the first ZBC-1 draft was uploaded to the
T10 servers. INCITS approved ZBC-2 this month, six years after the first
ZBC-2 draft was uploaded to the T10 servers. Because of the long time it
takes to complete new versions of T10 standards we plan not to wait until
T10 has standardized a zone append operation.
Which is why we need to start the work now. Note that I don't think
your time frames matter too much - the first draft of zbc2 is where
people opened up the process again. The more relevant time frame is
between getting the main new feature in and publusing, which is way
shorter.
Hi Christoph,
If you help with the npo2 zone size patch series making progress towards
being integrated in the upstream kernel I will help with the
standardization of a write append command in the T10 ZBC standard.
Thanks,
Bart.
