.\" -*- nroff -*-
-.\" Copyright 2006 by Cluster FileSystems. All Rights Reserved.
+.\" Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
.\" This file may be copied under the terms of the GNU Public License.
.\"
-.TH Lustre 7 "2006 Jun 15" Lustre "A high-performance cluster file system"
+.\" Copyright (c) 2015, 2016, Intel Corporation.
+.\"
+.TH LUSTRE 7 "2021 Nov 08" Lustre "A high-performance cluster file system"
.SH NAME
Lustre
.SH SYNOPSIS
-A high-performance file system designed for clusters.
+A high-performance file system designed for Linux clusters.
.SH DESCRIPTION
-.B Lustre®
-is a high-performance, massively-scalable, POSIX-compliant network file system
-designed for the world's largest high-performance compute clusters. Lustre
-is under active development from Cluster FileSystems (http://clusterfs.com).
+.B Lustre
+is a high-performance, massively-scalable, POSIX-compliant GPL network file
+system that runs on the world's largest high-performance compute clusters.
-Lustre filesystems are made up of multiple servers typically distributed
-across multiple nodes. Lustre clients can contact these server nodes over
-multiple high-speed network fabrics via LNET, the Lustre NETworking
-system. Clients then present the filesystem at a mount point.
+Lustre filesystems are made up of multiple services typically distributed
+across multiple server nodes. Lustre clients can contact these server nodes
+over multiple high-speed network fabrics via LNet, the Lustre Network
+system. Clients then present the filesystem at a mount point to userspace.
-A filesystem is comprised of a
-.I MDT
-, MetaData Target, which stores directory and file meta-information, and a
-series of
-.I OSTs
-, Object Storage Targets, which hold the file data. There is typically not
-a 1:1 mapping of a file on disk and what is presented as a file on a Lustre client.
+A Lustre filesystem is comprised of one or more
+.IR MDTs ,
+MetaData Targets, which store directory and file meta-information such as
+file ownership, timestamps, access permissions, etc, and one or more
+.IR OSTs ,
+Object Storage Targets, which hold each file's data in one or more objects.
+There is sometimes, but not always, a 1:1 mapping of regular files on a
+client to OST objects on the server. Each file may have a different
+mapping of file offset to one or more OST object(s), known as the file
+layout, that can be managed with the
+.BR lfs-setstripe (1)
+command.
-Lustre and LNET are implemented as a series of kernel modules, for both
-servers and clients. LNET networks are defined in the modprobe.conf file on
-all nodes. Lustre and LNET make extensive use of /proc files for making
-system data available, for example
-.TP
-.B /proc/sys/lnet/nis
-to show the local LNET Network Interfaces.
-.TP
-.B /proc/fs/lustre/devices
-to show locally running Lustre objects.
+Lustre and LNet are implemented as a series of Linux kernel modules, for both
+servers and clients. LNet networks are defined in the modprobe.conf file on
+all nodes. Lustre is started on the clients and servers using the
+.BR mount (8)
+command.
.SH COMMANDS
.TP
-.B mkfs.lustre(8)
-Format a physical disk for use as a Lustre server's backend storage (aka
-target).
+.BR mkfs.lustre (8)
+Format a Linux block device for use as a Lustre server's backend storage
+(aka target).
.TP
-.B tunefs.lustre(8)
+.BR tunefs.lustre (8)
Modify configuration information on a Lustre target disk.
.TP
-.B mount.lustre(8)
+.BR mount.lustre (8)
A helper program for
.BR mount (8)
-that starts Lustre servers and clients.
+that starts Lustre servers and clients mounts the client filesystem.
.TP
-.B lctl(8)
-A low-level interface to control various aspects of Lustre
+.BR lctl (8)
+A low-level tool for administrators to control Lustre configuration.
.TP
-.B lfs(1)
-A user-level interface to control Lustre-specific information for
-individual files.
-.B lustre_config.sh
-Format multiple Lustre targets simultaneously from definitions in a CSV
-file.
+.BR lfs (1)
+A user-level tool to control Lustre-specific information for
+individual files.
.SH BUGS
-Please report all bugs to Cluster FileSystems, support@clusterfs.com
+Please report all bugs https://jira.whamcloud.com/
.SH AVAILABILITY
.B The
-.BR Lustre (7)
-filesystem package is available from CFS
+.BR Lustre (7)
+filesystem packages are available for download at:
+.br
+https://downloads.whamcloud.com/
+and GPL source code is available at:
.br
-http://clusterfs.com
+https://git.whamcloud.com/
.SH SEE ALSO
.BR mkfs.lustre (8),
.BR tunefs.lustre (8),
.BR mount.lustre (8),
.BR lctl (8),
-.BR lfs (1)
+.BR lfs (1),
+.BR llobdstat (8),
+.BR llstat (8),
+.BR llverdev (8),
+.BR llog_reader (8),
+.BR lshowmount (8),
+.BR lustreapi (7),
+.BR lustre_rsync (8)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff