[lustre-discuss] File level erasure coding status

[Stepan Beskrovnyy]

Hi! Thanks for the clue. I have builded and mounted actual lustre-ec
branch. Tried to do 4+2 ec pattern for a file on a system and see this( see
Picture).
Is this a bug? How can I avoid this ? Any suggestions ?
[image: image.png]
Thanks,
Stepan

On Thu, Jan 22, 2026 at 8:16 PM Patrick Farrell <pfarrell at ddn.com> wrote:

> Hi Stepan!
>
> Erasure coding is very much an in-development feature.  There's some
> investigatory work going on by James Simmons at ORNL, and the main
> development effort is tracked here in JIRA:
>
> https://jira.whamcloud.com/browse/LU-10911
>
> The currently in-development code is here - this is the tip of a fairly
> long branch:
> https://review.whamcloud.com/c/fs/lustre-release/+/62757
>
> You can look at the tests in that branch for examples, but note the code
> is very much in active development.  There is a lot of churn and a number
> of known bugs.
>
> But if you'd like to follow along, that's where the work is being done.
> We'd also be happy to have feedback on the API if you're interested in
> taking a look.  (In the code - the API has changed some from what's
> documented in JIRA)
>
> Thanks!
> Patrick
> ------------------------------
> *From:* lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on
> behalf of Stepan Beskrovnyy via lustre-discuss <
> lustre-discuss at lists.lustre.org>
> *Sent:* Thursday, January 22, 2026 3:43 AM
> *To:* lustre-discuss at lists.lustre.org <lustre-discuss at lists.lustre.org>
> *Subject:* [lustre-discuss] File level erasure coding status
>
> Hi everyone !
>
> Is there any topics or threads with information about current lustre
> erasure coding development status and usage examples? If they exist, send
> links in reply to this message.
>
> Thanks,
> Stepan
>
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