draft-ietf-nfsv4-minorversion2-38.txt   draft-ietf-nfsv4-minorversion2-39.txt 
NFSv4 T. Haynes NFSv4 T. Haynes
Internet-Draft Primary Data Internet-Draft Primary Data
Intended status: Standards Track April 28, 2015 Intended status: Standards Track September 01, 2015
Expires: October 30, 2015 Expires: March 4, 2016
NFS Version 4 Minor Version 2 NFS Version 4 Minor Version 2
draft-ietf-nfsv4-minorversion2-38.txt draft-ietf-nfsv4-minorversion2-39.txt
Abstract Abstract
This Internet-Draft describes NFS version 4 minor version two, This Internet-Draft describes NFS version 4 minor version two,
describing the protocol extensions made from NFS version 4 minor describing the protocol extensions made from NFS version 4 minor
version 1. Major extensions introduced in NFS version 4 minor version 1. Major extensions introduced in NFS version 4 minor
version two include: Server Side Copy, Application I/O Advise, Space version two include: Server Side Copy, Application I/O Advise, Space
Reservations, Sparse Files, Application Data Blocks, and Labeled NFS. Reservations, Sparse Files, Application Data Blocks, and Labeled NFS.
Requirements Language Requirements Language
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on October 30, 2015. This Internet-Draft will expire on March 4, 2016.
Copyright Notice Copyright Notice
Copyright (c) 2015 IETF Trust and the persons identified as the Copyright (c) 2015 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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Layout Type and presented in the lsa_layoutupdate field. Each Layout Layout Type and presented in the lsa_layoutupdate field. Each Layout
Type MUST define the contents of lsa_layoutupdate in their respective Type MUST define the contents of lsa_layoutupdate in their respective
specifications. specifications.
LAYOUTSTATS can be combined with IO_ADVISE (see Section 15.5) to LAYOUTSTATS can be combined with IO_ADVISE (see Section 15.5) to
augment the decision making process of how the metadata server augment the decision making process of how the metadata server
handles a file. I.e., IO_ADVISE lets the server know that a byte handles a file. I.e., IO_ADVISE lets the server know that a byte
range has a certain characteristic, but not necessarily the intensity range has a certain characteristic, but not necessarily the intensity
of that characteristic. of that characteristic.
The statistics are cummulative, i.e., multiple LAYOUTSTATS updates The statistics are cumulative, i.e., multiple LAYOUTSTATS updates can
can be in flight at the same time. The metadata server can examine be in flight at the same time. The metadata server can examine the
the packet's timestamp to order the different calls. The first packet's timestamp to order the different calls. The first
LAYOUTSTATS sent by the client SHOULD be from the opening of the LAYOUTSTATS sent by the client SHOULD be from the opening of the
file. The choice of how often to update the metadata server is made file. The choice of how often to update the metadata server is made
by the client. by the client.
Note that while the metadata server may return an error associated Note that while the metadata server may return an error associated
with the layout stateid or the open file, it MUST NOT return an error with the layout stateid or the open file, it MUST NOT return an error
in the processing of the statistics. in the processing of the statistics.
15.8. Operation 66: OFFLOAD_CANCEL - Stop an Offloaded Operation 15.8. Operation 66: OFFLOAD_CANCEL - Stop an Offloaded Operation
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