lustre(7)

NAME

Lustre

SYNOPSIS

A high-performance file system designed for Linux clusters.

DESCRIPTION

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 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 Lustre filesystem is comprised of one or more MDTs, MetaData Targets, which store directory and file meta-information such as file ownership, timestamps, access permissions, etc, and one or more 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 lfs-setstripe(1) command.

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 mount(8) command.

COMMANDS

mkfs.lustre(8)

Format a Linux block device for use as a Lustre server's backend storage (aka target).

tunefs.lustre(8)

Modify configuration information on a Lustre target disk.

mount.lustre(8)

A helper program for mount(8) that starts Lustre servers and clients mounts the client filesystem.

lctl(8)

A low-level tool for administrators to control Lustre configuration.

lfs(1)

A user-level tool to control Lustre-specific information for individual files.

BUGS

Please report all bugs https://jira.whamcloud.com/

AVAILABILITY

The lustre(7) filesystem packages are available for download at:
https://downloads.whamcloud.com/ and GPL source code is available at:

• https://git.whamcloud.com/fs/lustre-release.git
• https://github.com/lustre/lustre-release

SEE ALSO

lfs(1), lustreapi(7), lnet(7), lctl(8), llobdstat(8), llstat(8), llverdev(8), llog_reader(8), lshowmount(8), lustre_rsync(8), mkfs.lustre(8), mount.lustre(8), tunefs.lustre(8)