Linked by Thom Holwerda on Mon 15th Nov 2010 23:37 UTC, submitted by comay
Oracle and SUN Today Oracle released its latest version of Solaris technology, the Oracle Solaris 11 Express 2010.11 release. It includes a large number of new features not found in either Oracle Solaris 10 or previous OpenSolaris releases including ZFS encryption and deduplication, network-based packaging and provisioning systems, network virtualization, optimized I/O for NUMA platforms and optimized platform support including support for Intel's latest Nehalem and SPARC T3. In addition, Oracle Solaris 10 support is available from within a container/zone so migration of existing systems is greatly simplified. The release is available under a variety of licenses including a supported commercial license on a wide variety of x86 and SPARC platforms.
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RE[4]: ZFS
by kaiwai on Tue 16th Nov 2010 17:36 UTC in reply to "RE[3]: ZFS"
kaiwai
Member since:
2005-07-06

I've not read up on HAMMERFS yet (will read your wiki shortly), but ZFS would have been perfect for the media professional market. Many OS X users are photographers, musicians, music producers or movie producers. They deal with huge files, many of which are duplicates of each other minus small alterations. So ZFSs deduping and/or the intelligent copy feature (where only the differences are stored when a file is copied).


Actually data de-dup is one of the features of HAMMERFS ;)

http://en.wikipedia.org/wiki/HAMMER

* Keeps configurable fine-grained filesystem history (30-second boundaries typically).
* Keeps configurable coarse-grained filesytem history (60 days daily by default).
* History and snapshots are accessible via the live filesystem.
* Near real-time log-less streaming mirroring to slaves or backups.
* Slave can have different retention parameters.
* CRC checksumming of data and metadata.
* Minimal remount time (no fsck required).
* Designed from the ground up for large fan-out mirroring.
* Support for very large file-systems (up to 1 exabyte).
* Offline recovery after a catastrophic failure is possible.
* Ability to re-optimize the layout in the background, on a live filesystem.
* Data de-dup
* Future - multi-master clustering
* Future - data compression


I've given DragonflyBSD a tinker and what I notice is there isn't the same sort of performance penalty as I notice with ZFS so that alone makes me a big booster for the file system; first impressions are sure to win me over and HAMMERFS has definitely done that ;)

Reply Parent Score: 2

RE[5]: ZFS
by fithisux on Tue 16th Nov 2010 18:00 in reply to "RE[4]: ZFS"
fithisux Member since:
2006-01-22

I hope OpenIndiana/Ilumos switch to HammerFS. I also hope that Illumos abandons the OpenSolaris DDK and switch to a port of IOKIT for easier development and sharing of knowledge with OSX users. Personally I wished for a port of XNU open source parts to Illumos with filling missing bits with OpenSolaris.

Reply Parent Score: 2

RE[6]: ZFS
by Luminair on Tue 16th Nov 2010 21:27 in reply to "RE[5]: ZFS"
Luminair Member since:
2007-03-30

hammerfs is what, 5 years and millions of dollars behind zfs? so I don't think it is appropriate to compare them like that. unless you're talking fantasy land style. like fabio romance fiction.

Reply Parent Score: 2

RE[6]: ZFS
by Kebabbert on Wed 17th Nov 2010 10:27 in reply to "RE[5]: ZFS"
Kebabbert Member since:
2007-07-27

I hope OpenIndiana/Ilumos switch to HammerFS.

Are you mad? HammerFS is most probably not safe, and might corrupt your data.

Researchers show that ZFS is safe with respect to bit rot and Silent corruption.

Reply Parent Score: 2

RE: HAMMER de-duplication
by Lazarus on Tue 16th Nov 2010 21:21 in reply to "RE[4]: ZFS"
Lazarus Member since:
2005-08-10

Yikes.

The deduplication code only hit the 2.9 branch of DragonFly on the 7th of November. Not something that is advertised as a stable feature for the current version of the HAMMER FS.

http://leaf.dragonflybsd.org/mailarchive/commits/2010-11/msg00043.h...

Reply Parent Score: 2