HAMMER2: Difference between revisions
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== History == |
== History == |
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HAMMER2 file system is actively developed by Matthew Dillon, who initially planned to bring it up to minimal working state by July 2012 and ship the final version in 2013.<ref name="hammer2-design" /><ref name="hammer2-plan" /> During [[Google Summer of Code|Google Summer of Code 2013]] Daniel Flores implemented [[data compression|compression]] in HAMMER2 using [[LZ4 (compression algorithm)|LZ4]] and [[zlib]] algorithms.<ref>https://diit.cz/clanek/dragonfly-bsd-50-hammer2-900-000-procesu</ref><ref name="gsoc-compression" /> On June 4, 2014, DragonFly 3.8.0 was released featuring support for HAMMER2, although the file system was said to be not ready for use.<ref name="dfly38-release-notes" /> On October 16, 2017, DragonFly 5.0 was released with bootable support for HAMMER2, though file-system status is still marked as experimental.<ref name="dfly50-release-notes" /> |
HAMMER2 file system is actively developed by Matthew Dillon, who initially planned to bring it up to minimal working state by July 2012 and ship the final version in 2013.<ref name="hammer2-design" /><ref name="hammer2-plan" /> During [[Google Summer of Code|Google Summer of Code 2013]] Daniel Flores implemented [[data compression|compression]] in HAMMER2 using [[LZ4 (compression algorithm)|LZ4]] and [[zlib]] algorithms.<ref>{{cite web|url=https://diit.cz/clanek/dragonfly-bsd-50-hammer2-900-000-procesu|title=DragonFly BSD 5.0: HAMMER2 a 900 000 procesů|publisher=}}</ref><ref name="gsoc-compression" /> On June 4, 2014, DragonFly 3.8.0 was released featuring support for HAMMER2, although the file system was said to be not ready for use.<ref name="dfly38-release-notes" /> On October 16, 2017, DragonFly 5.0 was released with bootable support for HAMMER2, though file-system status is still marked as experimental.<ref name="dfly50-release-notes" /> |
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== See also == |
== See also == |
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Revision as of 00:11, 12 January 2018
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| Developer(s) | Matthew Dillon |
|---|---|
| Full name | HAMMER2 |
| Introduced | June 4, 2014 with DragonFly BSD 5.0 |
| Features | |
| File system permissions | UNIX permissions |
| Transparent compression | Yes |
| Transparent encryption | Planned |
| Data deduplication | Live |
| Other | |
| Supported operating systems | DragonFly BSD |
HAMMER2 is a successor to the HAMMER filesystem, redesigned from the ground up to support enhanced clustering. HAMMER2 supports online and batched deduplication, snapshots, directory entry indexing, multiple mountable filesystem roots, mountable snapshots, a low memory footprint, compression, encryption, zero-detection, and synchronization to other filesystems or nodes.
History
HAMMER2 file system is actively developed by Matthew Dillon, who initially planned to bring it up to minimal working state by July 2012 and ship the final version in 2013.[1][2] During Google Summer of Code 2013 Daniel Flores implemented compression in HAMMER2 using LZ4 and zlib algorithms.[3][4] On June 4, 2014, DragonFly 3.8.0 was released featuring support for HAMMER2, although the file system was said to be not ready for use.[5] On October 16, 2017, DragonFly 5.0 was released with bootable support for HAMMER2, though file-system status is still marked as experimental.[6]
See also
References
- ^ Dillon, Matthew (2012-02-08). "DESIGN document for HAMMER2 (08-Feb-2012 update)".
{{cite web}}: Unknown parameter|mailinglist=ignored (help) - ^ Dillon, Matthew (2011-05-11). "HAMMER2 announcement". users (Mailing list).
{{cite mailing list}}: Unknown parameter|mailinglist=ignored (|mailing-list=suggested) (help) - ^ "DragonFly BSD 5.0: HAMMER2 a 900 000 procesů".
- ^ "Block compression feature in HAMMER2". GSoC 2013. Google. Retrieved 2014-06-05.
- ^ "DragonFly Release 3.8". DragonFly BSD. 2014-06-04. Retrieved 2014-06-05.
- ^ "DragonFly Release 5.0". DragonFly BSD. 2017-10-16. Retrieved 2017-10-16.