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2. ''Apply Lustre patches to your Linux kernel sources.'' For instructions, see [[Applying Lustre Patches to a Kern ...' with the path to your patched kernel source (for example, ''/tmp/kernels/linux-2.6.18-128.1.1'')

...issues related to the Lustre™ software. Many of these are available in the Linux operating system, while others are provided with Lustre. ...ools]] describes some analysis and debugging tools provided with Lustre or Linux or available externally.

Today, native kernel drivers exist only for Linux. Other native ports, such as to Windows and Solaris are underway. liblustre is not yet as widely used as Lustre in the Linux kernel, but it is largely the same code. The Cray Red Storm supercomputer r

''' What is the licensing model for the Lustre file system for Linux? ''' The Lustre file system for Linux is an Open Source product.

apt-get source linux-image-2.6.18-X-686 linux-patch-lustre #Patch for the linux kernel.

...e to debug issues with the Lustre™ software. Some of these are provided in Linux distributions, while others have been developed and are made available by t The tools described in this section are provided in the Linux kernel or are available at an external website. For information about using

== Linux Keyring == Lustre uses the Linux keyring facility in session based manner, which means a key is accessible o

Lustre 2.0 will support the following Linux distributions and architectures. !Linux Distribution

I have only tested this build process against Centos4.4 linux ...dhcp232 2.6.9-42.0.8.EL #1 Tue Jan 30 12:10:22 EST 2007 i686 i686 i386 GNU/Linux

If you need to build a customized Lustre™ server kernel or are using a Linux kernel that has not been tested with the version of Lustre you are installi modules (typically, the drivers) must be linked against the Linux kernel. The LNET

...rnel patches to a tree, how to use ''Quilt'' (a package provided with most Linux distributions) to manage changes to patches, and how to modify an existing ...ustre development and functionality, some changes must be made to the core Linux kernel. These changes are organized in a set of kernel patches kept in the

Linux disk labels are limited to 16 characters. To identify the target within the

The Lustre 2.0 release has been tested against the following Linux platforms, architectures and !Configuration Component ||colspan="85"|Linux Platform || Architecture || Interconnect

For information about device-level or file-level backups or using the Linux Logical Volume Manager (LVM) snapshot feature to make incremental backups

:'''''Note:''''' If a version of ''e2fsprogs'' is already installed on your Linux system, install the Lustre-specific version of ''e2fsprogs'' using ''rpm -U ...tem creation and repair tools, debugging tools, test programs and scripts, Linux kernel and Lustre source code, and other packages. A complete list of optio

[lustre]$ ./configure --with-linux=/unpatched/kernel/source

* [https://developer.berlios.de/projects/zfs-fuse/ DMU and ZFS FUSE on Linux]

...ne tool, see the [http://linux.die.net/man/1/virt-install ''virt-install'' Linux man page]. clearpart --linux --initlabel --drives=xvda

linux netconsole=4444@10.0.0.1/eth1,9353@10.0.0.2/12:34:56:78:9a:bc

...ile System: Demo Quick Start Guide'' is a simple cookbook for setting up a Linux-based Lustre file system for evaluation.

Currently, ''liblustre'' is still under development and only works on linux (i386 & x86_64, not tested on ia64). ...'' ''liblustre'' is not required or even recommended for running Lustre on Linux. Most users will not use ''liblustre''. Instead, you should use the Lustre

# resolving (dentry in linux) # attributes (inode in linux)

...://link.brightcove.com/services/player/bcpid1640183659?bctid=8899392001 '''Linux HPC Software Stack''']||Sun Systems Engineer Larry McIntosh provides an ove ...been addressed. The same paper is also [http://linuxclustersinstitute.org/Linux-HPC-Revolution/Archive/PDF05/17-Oberg_M.pdf available at the CU site.] / Un

Each backend OST file system is restricted to a maximum of 8 TB on Linux 2.6 (imposed by ''ext3''). ...1 MB buffers do not get unnecessarily broken up by lower kernel layers. In Linux 2.4, modifications were required to the SCSI layer, block devices, and the

* '''Send kernel crash dumps and kernel messages to a remote system.''' Linux provides various tools, such as netdump or netconsole, to capture crash dum

...ins> describes how to build and install Lustre on a machine running Debian Linux.

Yes. Any native Lustre client (running Linux today, by definition) can export a volume using NFS or Samba. Some people h Yes. You can use any Linux block device as storage for a backend Lustre server file system, including

* Includes client support for OEL 5, RHEL 5, SLES 10 and 11, Scientific Linux (new), and Fedora 11 2.6.30 (new) ...lavors of RHEL 4 or SLES 9. Lustre 1.8.1 and later versions do not support Linux vanilla kernel 2.6.22.14.

Yes, for example to get around the Linux 2.6 maximum 8 TB partition size. Although Lustre will aggregate multiple OS ...rried ''ext3'' substantially forward, and it is now competitive with other Linux file systems. Most of the changes made to ''ext3'' for improving Lustre pe

...ustre code will be required, while for others, a good understanding of the Linux kernel and how Lustre interfaces with it is needed.

A number of Linux™ kernels offer software RAID support, by which the kernel Linux, as well as to monitor the arrays while they are running. To create a RAID

[[Media:LUG08-Linux_HPC_Software_Stack.pdf|Linux HPC Software Stack Slides]] and [http://video.google.com/videoplay?docid=-1

to the ''/etc/modprobe.conf'' file. The ''modprobe.conf'' file is a Linux file that specifies which parts of the kernel are loaded.

The ''strace'' utility provided with the Linux distribution enables a system call to be traced by intercepting all the sys

Linux is the only fully supported target at this time. Code exists

|colspan=2|'''Questions:'''|| This is traditional Linux behaviour. Do we want to reproduce it?

...odifiability || developer || libcfs/build || first targets are Solaris and Linux, but it's likely there will be more platforms

...ed on the server and in client caches. (Currently implemented by Lustre on Linux)

InterMezzo and Lustre use a Linux namespace module implemented by the author to provide the of the global namespaces in Linux environments building on local filesystems, NFS, InterMezzo,

In Linux, RAID5 handles all incoming requests by small units called '''stripes'''.

|'''''[[Media:Lustre_MacOS.pdf|Porting Lustre to Operating Systems Other than Linux]]''''':

...availability || || 1, what OSes and which versions and archs for Windows, Linux and Samba. 2, what type of networking to support: IB or IP, NON-IP. ...S and get it work since there exists 3 big components: Lustre and Samba on Linux nodes, pCIFS on windows node.

...communication needs of the cluster. The package is included in all recent Linux distributions. If it is not included in your distribution, you can find pre ...is is to use bonding interfaces. Please consult the documentation for your Linux distribution for information about how to configure bonding interfaces.

...ally derived from the [http://www.kernel.org/doc/Documentation/CodingStyle Linux kernel rules], which are basically K&R style. ...2.3 and later lustre/, lnet/ and libcfs/ files. This matches the upstream Linux kernel coding style, and is the default method of code indentation.

...MU can run in userspace and is extensively used by the ztest program. The Linux ZFS FUSE project has also used it. Bill Moore (Sun ZFS Architect) reports

lustre/obdclass/linux-module. - linux kernel module handling lustre/obdclass/linux-obdo.c - pack/unpack obdo and other IO structs

...he feature provides read-only caching of data on an OSS. It uses a regular Linux pagecache to store the data. OSS read cache improves Lustre performance whe

Kernel: Linux mdev15 2.4.18-p4smp-10pre1 #1 SMP Thu Feb 5 14:52:15 PST 2004 i686 unknown LustreBuild: b_eq-20040210075810-PRISTINE-.usr.src.linux-2.4.18-p4smp-2.4.18-p4smp-10pre1

[[Architecture - PAG|''PAG'' ]] (Process Authentication Groups - Use of Linux keyring, setuid in Lustre, Kerberos credential, use cases)

...ouldn't confuse VM with written, but non freeable pages (unstable pages in linux?)

...ased on the RedHat Cluster version 2.0, which is part of RedHat Enterprise Linux version 5.5. For other versions or RHEL-based distributions, the syntax or

...''' We now use the latest release of the [http://www.opengroup.org/testing/linux-test/lsb-vsx.html LSB-VSX POSIX test suite] (''lts_vsx-pcts2.0beta2.tgz'') ...to find test failures that are specific to the file system instead of the Linux VFS or kernel. Up to 6 test results can be compared at once.

...via the interface ''cl_add_page'' which is similar with 'bio_add_page' in linux kernel used to check whether it already forms an optimal IOV or is accross ...by RAIDframe into sub (small) IOVs to various chunk objects. Similar with linux I/O scheduler, IOVs from various objects are queued into the scheduler. Wit

...not, build & install from source: http://www.citi.umich.edu/projects/nfsv4/linux/libgssapi/libgssapi-0.11.tar.gz

|<small>Clean up Linux IOC numbering to properly use "size" field so that mixed 32- and 64-bit ker

...e room for "capabilities" (in the distributed filesystem sense, not in the Linux capabilities sense), which means that OSSs and MDSs have to communicate to

The lists must give Linux existing ACL mechanisms available in the Linux kernel and filesystems to authorize access.

Frequency: rare, only if using MMP with Linux RAID<br> Description: MMP doesn't work with Linux RAID<br>

Description: reverse order of $LINUX{,_OBJ}/include<br> ...not the one for the currently running kernel, which is what is in /usr/src/linux-.../ copy is.<br>