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제 목 : OS별 ZFS 버전
작성자 : 좋은진호(truefeel, http://coffeenix.net/ )
작성일 : 2011.10.10(월)
1. FreeBSD 각 버전별 ZFS
7.0+ : original ZFS import, ZFS v6; requires significant tuning for stable operation (no longer supported)
7.2 : still ZFS v6, improved memory handling, amd64 may need no memory tuning (no longer supported)
7.3+ : backport of new ZFS v13 code, similar to the 8.0 code
8.0 : new ZFS v13 code, lots of bug fixes - recommended over all past versions. (no longer supported)
8.1+ : ZFS v14
8.2+ : ZFS v15
9.0+ : ZFS v28
2. ZFS버전별 OS
10 - Supported by Solaris 10 U7
14 - Supported by OpenSolaris 2009.06, FreeBSD 8.1
15 - Supported by Solaris 10 10/09 (U8), FreeBSD 8.2
17 - Triple Parity RAID-Z
19 - Supported by Solaris 10 09/10
21 - Deduplication
22 - Solaris 10 9/10 (U9)
28 - FreeBSD 9.0, OpenIndiana/Illumos, ZFSOnLinux, ZFS-FUSE
30 - Encryption support, - not compatible with open implementations, only in closed source for-license Solaris 11 Express release.
3. ZFS버전별 특징
ZFS pool의 버전별 간단한 특징을 확인하려면 zpool upgrdade -v 명령으로 볼 수 있다. 기본적인 특징을 command로 쉽게 볼 수 있도록 했다니, ZFS의 마인드가 맘에 든다.
다음은 FreeBSD 9.0 beta(v28까지 지원)에서 확인한 결과이다.
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VER DESCRIPTION
--- --------------------------------------------------------
1 Initial ZFS version
2 Ditto blocks (replicated metadata)
3 Hot spares and double parity RAID-Z
4 zpool history
5 Compression using the gzip algorithm
6 bootfs pool property
7 Separate intent log devices
8 Delegated administration
9 refquota and refreservation properties
10 Cache devices
11 Improved scrub performance
12 Snapshot properties
13 snapused property
14 passthrough-x aclinherit
15 user/group space accounting
16 stmf property support
17 Triple-parity RAID-Z
18 Snapshot user holds
19 Log device removal
20 Compression using zle (zero-length encoding)
21 Deduplication
22 Received properties
23 Slim ZIL
24 System attributes
25 Improved scrub stats
26 Improved snapshot deletion performance
27 Improved snapshot creation performance
28 Multiple vdev replacements
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4. 참고자료
* FreeBSD : ZFS Tuning Guide
http://wiki.freebsd.org/ZFSTuningGuide
* ZFS
http://en.wikipedia.org/wiki/ZFS#Version_numbers
* ZFS 파일시스템의 snapshot(스냅샷) 기능 (2010, 글 좋은진호)
http://coffeenix.net/board_view.php?bd_code=1711
* FreeBSD 7.x에서 ZFS 사용 & 성능(2009, 글 좋은진호)
7.x에서 테스트한 오래전의 글이라서 성능보다는 ZFS사용에 중점을 두고 있으세요.
http://coffeenix.net/board_view.php?bd_code=1662
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