drivers/staging/lustre/README.txt

   1 Lustre Parallel Filesystem Client
   2 =================================
   3
   4 The Lustre file system is an open-source, parallel file system
   5 that supports many requirements of leadership class HPC simulation
   6 environments.
   7 Born from from a research project at Carnegie Mellon University,
   8 the Lustre file system is a widely-used option in HPC.
   9 The Lustre file system provides a POSIX compliant file system interface,
  10 can scale to thousands of clients, petabytes of storage and
  11 hundreds of gigabytes per second of I/O bandwidth.
  12
  13 Unlike shared disk storage cluster filesystems (e.g. OCFS2, GFS, GPFS),
  14 Lustre has independent Metadata and Data servers that clients can access
  15 in parallel to maximize performance.
  16
  17 In order to use Lustre client you will need to download the "lustre-client"
  18 package that contains the userspace tools from http://lustre.org/download/
  19
  20 You will need to install and configure your Lustre servers separately.
  21
  22 Mount Syntax
  23 ============
  24 After you installed the lustre-client tools including mount.lustre binary
  25 you can mount your Lustre filesystem with:
  26
  27 mount -t lustre mgs:/fsname mnt
  28
  29 where mgs is the host name or ip address of your Lustre MGS(management service)
  30 fsname is the name of the filesystem you would like to mount.
  31
  32
  33 Mount Options
  34 =============
  35
  36   noflock
  37         Disable posix file locking (Applications trying to use
  38         the functionality will get ENOSYS)
  39
  40   localflock
  41         Enable local flock support, using only client-local flock
  42         (faster, for applications that require flock but do not run
  43          on multiple nodes).
  44
  45   flock
  46         Enable cluster-global posix file locking coherent across all
  47         client nodes.
  48
  49   user_xattr, nouser_xattr
  50         Support "user." extended attributes (or not)
  51
  52   user_fid2path, nouser_fid2path
  53         Enable FID to path translation by regular users (or not)
  54
  55   checksum, nochecksum
  56         Verify data consistency on the wire and in memory as it passes
  57         between the layers (or not).
  58
  59   lruresize, nolruresize
  60         Allow lock LRU to be controlled by memory pressure on the server
  61         (or only 100 (default, controlled by lru_size proc parameter) locks
  62          per CPU per server on this client).
  63
  64   lazystatfs, nolazystatfs
  65         Do not block in statfs() if some of the servers are down.
  66
  67   32bitapi
  68         Shrink inode numbers to fit into 32 bits. This is necessary
  69         if you plan to reexport Lustre filesystem from this client via
  70         NFSv4.
  71
  72   verbose, noverbose
  73         Enable mount/umount console messages (or not)
  74
  75 More Information
  76 ================
  77 You can get more information at the Lustre website: http://wiki.lustre.org/
  78
  79 Source for the userspace tools and out-of-tree client and server code
  80 is available at: http://git.hpdd.intel.com/fs/lustre-release.git
  81
  82 Latest binary packages:
  83 http://lustre.org/download/