What will happen to DAOS when the meta data and small I/Os have consumed all the SCM capacity meanwhile the SSDs still have enough space to hold data ? what is the strategy ? Does it move some 4K values or meta data (keys) to the SSDs and then reclaim their space for incoming data , or just simply stop accepting I/O request?
Applications will get a DER_NOSPACE error. We currently don’t support serialization of metadata to SSDs.
Cheers,
Johann
From:
<daos@daos.groups.io> on behalf of "bob@..." <bob@...> Reply-To: "daos@daos.groups.io" <daos@daos.groups.io> Date: Friday 1 April 2022 at 09:12 To: "daos@daos.groups.io" <daos@daos.groups.io> Subject: [daos] What will happen to DAOS if all SCM space is consumed?
Hi all
What will happen to DAOS when the meta data and small I/Os have consumed all the SCM capacity meanwhile the SSDs still have enough space to hold data ? what is the strategy ? Does it move some 4K values or meta data (keys) to the SSDs and then reclaim their
space for incoming data , or just simply stop accepting I/O request?
Regards
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