[cdwg] Lustre 2.4.0 released

[Jones, Peter A]

We are pleased to announce that the Lustre 2.4.0 Release has been declared GA and is available for download<http://downloads.whamcloud.com/public/lustre/latest-feature-release/> . You can also grab the source from git<http://git.whamcloud.com/?p=fs/lustre-release.git;a=commit;h=d3f91c45ec56329c52ff1f15bc56d38f5fe9cf7c>

The major release includes a number of new features including:

DNE Phase 1 (LU-1187<https://jira.hpdd.intel.com/browse/LU-1187>)
Network Request Scheduler (LU-398<https://jira.hpdd.intel.com/browse/LU-398>)
ZFS Support(LU-1305<https://jira.hpdd.intel.com/browse/LU-1305>) see zfsonlinux.org<http://zfsonlinux.org/> for details on how to build this option

Fuller details can be found in the change log<https://wiki.hpdd.intel.com/display/PUB/Changelog+2.4>, the scope statement<https://wiki.hpdd.intel.com/display/PUB/Lustre+2.4+Scope+Statement> and the test matrix<https://wiki.hpdd.intel.com/display/PUB/Lustre+2.4>

The following are known issues in the Lustre 2.4 Release:

LU-3430<https://jira.hpdd.intel.com/browse/LU-3430> : A rare race can result in an LBUG on an OSS while running the orr policy for NRS
LU-3415<https://jira.hpdd.intel.com/browse/LU-3415>: An LBUG hits the MDS when upgrading from 1.8.x to 2.4.0 with quotas enabled
<https://jira.hpdd.intel.com/browse/LU-3420>L<https://jira.hpdd.intel.com/browse/LU-3420>U-3420<https://jira.hpdd.intel.com/browse/LU-3420>: OI scrub not engaged after a file level backup running with DNE
<https://jira.hpdd.intel.com/browse/LU-3421>L<https://jira.hpdd.intel.com/browse/LU-3421>U-3421<https://jira.hpdd.intel.com/browse/LU-3421>: OSTs can erroneously report ENOSPC
L<https://jira.hpdd.intel.com/browse/LU-3305>U-3305<https://jira.hpdd.intel.com/browse/LU-3305>:  Metadata performance drop running with quotas

Work is in progress for these issues.

Please log any issues found in the issue tracking system<https://jira.hpdd.intel.com/>

We would like to thank OpenSFS<http://www.opensfs.org/> for their contributions towards the cost of the release and also to all Lustre community members who have contributed to the release with code and/or testing.