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Reporting of Errors via LAYOUTRETURN in NFSv4.2

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Thomas Haynes , Trond Myklebust
Last updated 2023-09-13 (Latest revision 2023-03-12)
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


The Parallel Network File System (pNFS) allows for a file's metadata (MDS) and data (DS) to be on different servers. When the metadata server is restarted, the client can still modify the data file component. During the recovery phase of startup, the metadata server and the data servers work together to recover state (which files are open, last modification time, size, etc). A problem with servers which do client side mirroring there is no means by which the client can report errors to the metadata server. As such, the metadata server has to assume that file needs resilvering. This document presents a refinement to RFC8435 to allow the client to update the metadata


Thomas Haynes
Trond Myklebust

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)