Technical Summary
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). If the client has not
encountered errors with the data files, then the state can be
recovered, avoiding resilvering of the data files. With any errors,
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 an extension to
RFC8435 to allow the client to update the metadata and avoid the
resilvering.
Working Group Summary
Was there anything in the WG process that is worth noting?
For example, was there controversy about particular points
or were there decisions where the consensus was
particularly rough?
Broad agreement was reached. This document had no controversy.
Document Quality
Are there existing implementations of the protocol? Have a
significant number of vendors indicated their plan to
implement the specification? Are there any reviewers that
merit special mention as having done a thorough review,
e.g., one that resulted in important changes or a
conclusion that the document had no substantive issues? If
there was a MIB Doctor, Media Type, or other Expert Review,
what was its course (briefly)? In the case of a Media Type
Review, on what date was the request posted?
The Linux client and at least 1 server product have committed to this minor
update.
Personnel
The Document Shepherd for this document is Christopher Inacio. The
Responsible Area Director is Zaheduzzaman Sarker.
IANA Note
(Insert IANA Note here or remove section)