Lustre Parallel Filesystem Client
|
=================================
|
|
The Lustre file system is an open-source, parallel file system
|
that supports many requirements of leadership class HPC simulation
|
environments.
|
Born from from a research project at Carnegie Mellon University,
|
the Lustre file system is a widely-used option in HPC.
|
The Lustre file system provides a POSIX compliant file system interface,
|
can scale to thousands of clients, petabytes of storage and
|
hundreds of gigabytes per second of I/O bandwidth.
|
|
Unlike shared disk storage cluster filesystems (e.g. OCFS2, GFS, GPFS),
|
Lustre has independent Metadata and Data servers that clients can access
|
in parallel to maximize performance.
|
|
In order to use Lustre client you will need to download the "lustre-client"
|
package that contains the userspace tools from http://lustre.org/download/
|
|
You will need to install and configure your Lustre servers separately.
|
|
Mount Syntax
|
============
|
After you installed the lustre-client tools including mount.lustre binary
|
you can mount your Lustre filesystem with:
|
|
mount -t lustre mgs:/fsname mnt
|
|
where mgs is the host name or ip address of your Lustre MGS(management service)
|
fsname is the name of the filesystem you would like to mount.
|
|
|
Mount Options
|
=============
|
|
noflock
|
Disable posix file locking (Applications trying to use
|
the functionality will get ENOSYS)
|
|
localflock
|
Enable local flock support, using only client-local flock
|
(faster, for applications that require flock but do not run
|
on multiple nodes).
|
|
flock
|
Enable cluster-global posix file locking coherent across all
|
client nodes.
|
|
user_xattr, nouser_xattr
|
Support "user." extended attributes (or not)
|
|
user_fid2path, nouser_fid2path
|
Enable FID to path translation by regular users (or not)
|
|
checksum, nochecksum
|
Verify data consistency on the wire and in memory as it passes
|
between the layers (or not).
|
|
lruresize, nolruresize
|
Allow lock LRU to be controlled by memory pressure on the server
|
(or only 100 (default, controlled by lru_size proc parameter) locks
|
per CPU per server on this client).
|
|
lazystatfs, nolazystatfs
|
Do not block in statfs() if some of the servers are down.
|
|
32bitapi
|
Shrink inode numbers to fit into 32 bits. This is necessary
|
if you plan to reexport Lustre filesystem from this client via
|
NFSv4.
|
|
verbose, noverbose
|
Enable mount/umount console messages (or not)
|
|
More Information
|
================
|
You can get more information at the Lustre website: http://wiki.lustre.org/
|
|
Source for the userspace tools and out-of-tree client and server code
|
is available at: http://git.hpdd.intel.com/fs/lustre-release.git
|
|
Latest binary packages:
|
http://lustre.org/download/
|
