The wiki pages have been updated to reflect the final feature content of the upcoming
Lustre 2.4 release.
The complete list of features is listed on the Lustre 2.4 scope
has been adjusted to reflect features that were candidates for 2.4 and now have become
candidates for the 2.5 release.
The highlights of the release are arguably those features which were called out on the
for Lustre 2.4. The status of these featiures is as follows:
1. OSD Restructuring: feature complete. Thanks to LLNL for funding this development
work. This code has been running in production on Sequoia since October.
2. DNE Phase 1: feature complete. This allow scaling of metadata over multiple metadata
servers. Thanks to OpenSFS for funding this development.
3. LFSCK MDT FID / LinkEA: feature complete. This feature provides the means to have
online filesystem checks; fixes certain classes of corruptions; alerts admins of detected
problems; and optimizes filesystems upgraded from 1.8.x releases. Thanks to OpenSFS for
funding this development.
4. HSM: HSM client support complete. Congratulations to CEA for the huge steps towards
getting this much-anticipated feature complete. When a Lustre release exists with the last
few components of this it will be possible for a vanilla Lustre 2.4 client to interoperate
with this release.
5. Network Request Scheduler: core functionality complete and two additional policies
are expected to be landed shortly. Congratulations to Xyratex for completing this lengthy
development. This feature creates a mechanism to allow policies to determine how to handle
We will need to discuss any necessary updates to the community roadmap at the next CDWG
As a reminder, could any development organization hoping to include features in the 2.5
release please ensure that this is communicated to us either directly or via the community
development wiki page so that we can factor for this in our planning process and catch
possible conflicts early.
Please let me know if anything needs further clarification