Oracle ZFS: Difference between revisions

Oracle ZFS
Initial release	November 2005; 19 years ago, part of OpenSolaris
Stable release	11.4 SRU53 (Solaris OS) / January 18, 2023; 21 months ago
Written in	C
Operating system	Oracle Solaris
License	Proprietary
Website	docs.oracle.com/cd/E23824_01/html/821-1448/zfsover-1.html

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Oracle ZFS is Oracle's proprietary implementation of the ZFS file system and logical volume manager for Oracle Solaris. ZFS is a registered trademark belonging to Oracle.^[2]

History

Solaris 10

In update 2 and later, ZFS is part of Sun's own Solaris 10 operating system and is thus available on both SPARC and x86-based systems.

Solaris 11

After Oracle's Solaris 11 Express release, the OS/Net consolidation (the main OS code) was made proprietary and closed-source,^[3] and further ZFS upgrades and implementations inside Solaris (such as encryption) are not compatible with other non-proprietary implementations which use previous versions of ZFS.

When creating a new ZFS pool, to retain the ability to use access the pool from other non-proprietary Solaris-based distributions, it is recommended to upgrade to Solaris 11 Express from OpenSolaris (snv_134b), and thereby stay at ZFS version 28.

Future development

On September 2, 2017, Simon Phipps reported that Oracle had laid off virtually all of its Solaris core development staff, interpreting it as a sign that Oracle no longer intends to support future development of the platform.^[4]

Version history

Legend:
Old release
Latest Proprietary stable release

ZFS Filesystem Version Number	OS Release	Significant changes
6	Solaris 11.1	Multilevel file system support^[5]
7	Solaris 11.4 SRU 45	File retention support^[5]
8	Solaris 11.4 SRU 51	Unicode versioning support^[5]

ZFS Pool Version Number	OS Release	Significant changes
29	Solaris Nevada b148	RAID-Z/mirror hybrid allocator
30	Solaris Nevada b149	ZFS encryption
31	Solaris Nevada b150	Improved 'zfs list' performance
32	Solaris Nevada b151	One MB block support
33	Solaris Nevada b163	Improved share support
34	Solaris 11.1 (0.5.11-0.175.1.0.0.24.2)	Sharing with inheritance
35	Solaris 11.2 (0.5.11-0.175.2.0.0.42.0)	Sequential resilver
36	Solaris 11.3	Efficient log block allocation
37	Solaris 11.3	LZ4 compression
38	Solaris 11.4	xcopy with encryption
39	Solaris 11.4	reduce resilver restart
40	Solaris 11.4	Deduplication 2
41	Solaris 11.4	Asynchronous dataset destroy
42	Solaris 11.4	Reguid: ability to change the pool guid
43	Solaris 11.4, Oracle ZFS Storage Simulator 8.7^[6]	RAID-Z improvements and cloud device support.^[7]
44	Solaris 11.4^[7]	Device removal
45	Solaris 11.4 SRU 11^[8]	Lazy deadlists
46	Solaris 11.4 SRU 12^[9]	Compact file metadata for encryption
47	Solaris 11.4 SRU 21^[10]	Property Support for ZVOLs
48	Solaris 11.4 SRU 45	File retention support^[11]
49	Solaris 11.4 SRU 51	Unicode versioning support^[11]
50	Solaris 11.4 SRU 57	Raw crypto replication^[12]
51	Solaris 11.4 SRU 63	'onexpiry' options for file retention^[12]

References

^ "Announcing Oracle Solaris 11.4 SRU53". January 18, 2023. Retrieved January 18, 2023.
^ "Status Information for Serial Number 85901629 (ZFS)". United States Patent and Trademark Office. Archived from the original on October 21, 2013. Retrieved October 21, 2013.
^ "Oracle Has Killed OpenSolaris". Techie Buzz. August 14, 2010. Archived from the original on October 15, 2013. Retrieved July 17, 2013.
^ Varghese, Sam (September 4, 2017). "Bye, bye Solaris, it was a nice ride while it lasted". ITWire. Retrieved July 21, 2019.
^ ^a ^b ^c "ZFS File System Versions". Oracle Corporation. 2022. Archived from the original on January 2, 2023. Retrieved January 1, 2023.
^ "Oracle ZFS Storage Simulator download". Oracle Corporation. 2017. Archived from the original on January 13, 2018. Retrieved January 12, 2018.
^ ^a ^b "ZFS Pool Versions". Oracle Corporation. 2018. Archived from the original on December 18, 2018. Retrieved December 18, 2018.
^ "ZFS Pool Versions". Oracle Corporation. 2019. Archived from the original on December 18, 2018. Retrieved July 24, 2019.
^ "ZFS Pool Versions". Oracle Corporation. 2019. Archived from the original on December 18, 2018. Retrieved August 20, 2019.
^ "ZFS Pool Versions". Oracle Corporation. 2020. Archived from the original on December 18, 2018. Retrieved May 23, 2020.
^ ^a ^b "ZFS Pool Versions". Oracle Corporation. 2022. Archived from the original on December 21, 2022. Retrieved January 1, 2023.
^ ^a ^b "ZFS Pool Versions". Oracle Corporation. 2023. Retrieved November 17, 2023.

External links

[1] "Announcing Oracle Solaris 11.4 SRU53". January 18, 2023. Retrieved January 18, 2023.

[2] "Status Information for Serial Number 85901629 (ZFS)". United States Patent and Trademark Office. Archived from the original on October 21, 2013. Retrieved October 21, 2013.

[3] "Oracle Has Killed OpenSolaris". Techie Buzz. August 14, 2010. Archived from the original on October 15, 2013. Retrieved July 17, 2013.

[4] Varghese, Sam (September 4, 2017). "Bye, bye Solaris, it was a nice ride while it lasted". ITWire. Retrieved July 21, 2019.

[fs-versions-2022-5] "ZFS File System Versions". Oracle Corporation. 2022. Archived from the original on January 2, 2023. Retrieved January 1, 2023.

[6] "Oracle ZFS Storage Simulator download". Oracle Corporation. 2017. Archived from the original on January 13, 2018. Retrieved January 12, 2018.

[ZFS_Pool_Versions-7] "ZFS Pool Versions". Oracle Corporation. 2018. Archived from the original on December 18, 2018. Retrieved December 18, 2018.

[8] "ZFS Pool Versions". Oracle Corporation. 2019. Archived from the original on December 18, 2018. Retrieved July 24, 2019.

[9] "ZFS Pool Versions". Oracle Corporation. 2019. Archived from the original on December 18, 2018. Retrieved August 20, 2019.

[10] "ZFS Pool Versions". Oracle Corporation. 2020. Archived from the original on December 18, 2018. Retrieved May 23, 2020.

[zpool-2022-11] "ZFS Pool Versions". Oracle Corporation. 2022. Archived from the original on December 21, 2022. Retrieved January 1, 2023.

[zpool-2023-12] "ZFS Pool Versions". Oracle Corporation. 2023. Retrieved November 17, 2023.

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@@ Line 2: / Line 2: @@
 {{About|the proprietary filesystem|its open-source alternative|OpenZFS}}
 {{Use mdy dates|date=May 2012}}
-{{Infobox Filesystem
+{{Infobox software
+| programming language   = C
-| full_name               = ZFS <!-- It is not an initialism; see the "History" section for an explanation of why -->
-| name                    = ZFS
+| released               = {{Start date and age|2005|11}}, part of [[OpenSolaris]]
+| latest_release_version = 11.4 SRU53 (Solaris OS)<ref>{{cite web   | title = Announcing Oracle Solaris 11.4 SRU53 | url = https://blogs.oracle.com/solaris/post/announcing-oracle-solaris-114-sru53   | date =  January 18, 2023  | access-date =  January 18, 2023}}</ref>
-| developer               = [[Sun Microsystems]] originally, [[Oracle Corporation]] since 2010.
+| latest_release_date = {{Start date and age|2023|01|18}}
-| introduction_os         = [[OpenSolaris]]
-| introduction_date       = {{Start date and age|2005|11}}
+| operating system       = [[Oracle Solaris]]
-| directory_struct        = Extensible [[hash table]]
+| license                = Proprietary
+| website                = {{URL|https://docs.oracle.com/cd/E23824_01/html/821-1448/zfsover-1.html}}
-| max_filename_size       = 255 [[ASCII]] characters (fewer for multibyte character standards such as [[Unicode]])
+}}
-| max_files_no            = {{ubl|Per directory: 2<sup>48</sup>|Per file system: unlimited<ref name="scalability">{{cite web|title=What Is ZFS?|url=http://docs.oracle.com/cd/E23823_01/html/819-5461/zfsover-2.html#gayou|website=Oracle Solaris ZFS Administration Guide|publisher=Oracle|accessdate=29 December 2015|archive-url=https://web.archive.org/web/20160304210957/http://docs.oracle.com/cd/E23823_01/html/819-5461/zfsover-2.html#gayou|archive-date=March 4, 2016|url-status=live}}</ref>}}
-| max_volume_size         = 256&nbsp;trillion&nbsp;[[yobibyte]]s (2<sup>128</sup>&nbsp;bytes)<ref name="scalability"/>
-| max_capacity            = 256&nbsp;[[UB]] (2<sup>128</sup>&nbsp;bytes)
-| max_file_size           = 16&nbsp;[[exbibyte]]s (2<sup>64</sup>&nbsp;bytes)
-| forks_streams           = Yes (called "extended attributes", but they are full-fledged streams)
-| attributes              = [[POSIX]]
-| file_system_permissions = POSIX, NFSv4 ACLs
-| compression             = Yes
-| data_deduplication      = Yes
-| encryption              = Yes
-| copy_on_write           = Yes
-| OS                      = [[Solaris (operating system)|Solaris]], [[OpenSolaris]], [[illumos]] distributions, [[OpenIndiana]], [[FreeBSD]], [[macOS Server#Mac OS X Server 10.5 (Leopard Server)|Mac OS X Server 10.5]] (limited to read-only), [[NetBSD]], [[Linux]] via third-party [[Loadable Kernel Module|kernel module]] ("ZFS on Linux")<ref>{{cite web | url = https://github.com/openzfs/zfs/wiki/FAQ#licensing | title = ZFS on Linux Licensing | accessdate = 2020-05-17}}</ref> or ZFS-[[Filesystem in Userspace|FUSE]], [[OSv]]
-|variants=}}
+'''Oracle ZFS''' is [[Oracle Corporation|Oracle]]'s proprietary implementation of the [[ZFS]] [[file system]] and [[Logical volume management|logical volume manager]] for [[Oracle Solaris]]. ZFS is a registered trademark belonging to Oracle.<ref>{{cite web | url =https://tsdrapi.uspto.gov/ts/cd/casestatus/sn85901629/content | title =Status Information for Serial Number 85901629 (ZFS) | publisher =United States Patent and Trademark Office | access-date =October 21, 2013 | archive-url =https://web.archive.org/web/20131021232022/https://tsdrapi.uspto.gov/ts/cd/casestatus/sn85901629/content | archive-date =October 21, 2013 | url-status =live }}</ref>
-'''Oracle ZFS''' is a proprietary [[file system]] and [[Logical volume management|logical volume manager]]. ZFS is scalable, and includes extensive protection against [[data corruption]], support for high storage capacities, efficient [[data compression]], integration of the concepts of [[File system|filesystem]] and [[volume (computing)|volume management]], [[Snapshot (computer storage)|snapshots]] and [[copy-on-write]] clones, continuous integrity checking and automatic repair, [[#RAID-Z|RAID-Z]], native [[NFSv4]] [[Access control lists|ACLs]], and can be very precisely configured.
-ZFS is a registered trademark belonging to Oracle.<ref>{{cite web | url =https://tsdrapi.uspto.gov/ts/cd/casestatus/sn85901629/content | title =Status Information for Serial Number 85901629 (ZFS) | publisher =United States Patent and Trademark Office | accessdate =October 21, 2013 | archive-url =https://web.archive.org/web/20131021232022/https://tsdrapi.uspto.gov/ts/cd/casestatus/sn85901629/content | archive-date =October 21, 2013 | url-status =live }}</ref>
 ==History==
-{{See also|ZFS#History}}
-==Implementations==
 {{See also|ZFS#Implementations|OpenZFS#Implementations}}
@@ Line 43: / Line 26: @@
  | publisher = Techie Buzz
  | date =August 14, 2010
- | accessdate =July 17, 2013
+ | access-date =July 17, 2013
  | archive-url = https://web.archive.org/web/20131015165133/http://techie-buzz.com/foss/oracle-has-killed-opensolaris.html
  | archive-date =October 15, 2013
@@ Line 74: / Line 57: @@
 |-
 ! ZFS Filesystem Version Number
-! Release date
+! OS Release
 ! Significant changes
 |-
-! {{Proprietary|6}}
+! {{no|6}}
 | style="white-space:nowrap;" | Solaris 11.1
+| Multilevel file system support<ref name="fs-versions-2022">{{cite web | url = https://docs.oracle.com/en/operating-systems/solaris/oracle-solaris/11.4/manage-zfs/zfs-file-system-versions.html | title = ZFS File System Versions | access-date = Jan 1, 2023 | publisher = Oracle Corporation | year = 2022 | archive-url = https://web.archive.org/web/20230102032220/https://docs.oracle.com/en/operating-systems/solaris/oracle-solaris/11.4/manage-zfs/zfs-file-system-versions.html | archive-date = January 2, 2023 | url-status = live}}</ref>
-| Multilevel file system support
+|-
+! {{no|7}}
+| style="white-space:nowrap;" | Solaris 11.4 SRU 45
+| File retention support<ref name="fs-versions-2022"/>
+|-
+! {{Proprietary|8}}
+| style="white-space:nowrap;" | Solaris 11.4 SRU 51
+| Unicode versioning support<ref name="fs-versions-2022"/>
 |}
 {| class="wikitable"
 |-
-! ZFS Filesystem Version Number
+! ZFS Pool Version Number
-! Release date
+! OS Release
 ! Significant changes
 |-
@@ Line 145: / Line 136: @@
 |-
 ! {{no|43}}
-| style="white-space:nowrap;" | Solaris 11.4, Oracle ZFS Storage Simulator 8.7<ref>{{cite web | url = http://www.oracle.com/technetwork/server-storage/sun-unified-storage/downloads/sun-simulator-1368816.html | title = Oracle ZFS Storage Simulator download | accessdate =January 12, 2018 | publisher = Oracle Corporation | year = 2017 | archive-url = https://web.archive.org/web/20180113043800/http://www.oracle.com/technetwork/server-storage/sun-unified-storage/downloads/sun-simulator-1368816.html | archive-date =January 13, 2018 | url-status = live}}</ref>
+| style="white-space:nowrap;" | Solaris 11.4, Oracle ZFS Storage Simulator 8.7<ref>{{cite web | url = http://www.oracle.com/technetwork/server-storage/sun-unified-storage/downloads/sun-simulator-1368816.html | title = Oracle ZFS Storage Simulator download | access-date =January 12, 2018 | publisher = Oracle Corporation | year = 2017 | archive-url = https://web.archive.org/web/20180113043800/http://www.oracle.com/technetwork/server-storage/sun-unified-storage/downloads/sun-simulator-1368816.html | archive-date =January 13, 2018 | url-status = live}}</ref>
-|RAID-Z improvements and cloud device support.<ref name="ZFS Pool Versions">{{cite web | url = https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | title = ZFS Pool Versions | accessdate =December 18, 2018 | publisher = Oracle Corporation | year =2018 | archive-url = https://web.archive.org/web/20181218194040/https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | archive-date =December 18, 2018 | url-status = live}}</ref>
+|RAID-Z improvements and cloud device support.<ref name="ZFS Pool Versions">{{cite web | url = https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | title = ZFS Pool Versions | access-date =December 18, 2018 | publisher = Oracle Corporation | year =2018 | archive-url = https://web.archive.org/web/20181218194040/https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | archive-date =December 18, 2018 | url-status = live}}</ref>
 |-
 ! {{no|44}}
@@ Line 153: / Line 144: @@
 |-
 ! {{no|45}}
-| style="white-space:nowrap;" | Solaris 11.4 SRU 11<ref>{{cite web | url = https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | title = ZFS Pool Versions | accessdate =July 24, 2019 | publisher = Oracle Corporation | year = 2019 | archive-url = https://web.archive.org/web/20181218194040/https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | archive-date =December 18, 2018 | url-status = live}}</ref>
+| style="white-space:nowrap;" | Solaris 11.4 SRU 11<ref>{{cite web | url = https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | title = ZFS Pool Versions | access-date =July 24, 2019 | publisher = Oracle Corporation | year = 2019 | archive-url = https://web.archive.org/web/20181218194040/https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | archive-date =December 18, 2018 | url-status = live}}</ref>
 |Lazy deadlists
 |-
 ! {{ no|46}}
-| style="white-space:nowrap;" | Solaris 11.4 SRU 12<ref>{{cite web | url = https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | title = ZFS Pool Versions | accessdate =August 20, 2019 | publisher = Oracle Corporation | year = 2019 | archive-url = https://web.archive.org/web/20181218194040/https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | archive-date =December 18, 2018 | url-status = live}}</ref>
+| style="white-space:nowrap;" | Solaris 11.4 SRU 12<ref>{{cite web | url = https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | title = ZFS Pool Versions | access-date =August 20, 2019 | publisher = Oracle Corporation | year = 2019 | archive-url = https://web.archive.org/web/20181218194040/https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | archive-date =December 18, 2018 | url-status = live}}</ref>
 |Compact file metadata for encryption
 |-
-! {{ Proprietary|47}}
+! {{ no|47}}
-| style="white-space:nowrap;" | Solaris 11.4 SRU 21<ref>{{cite web | url = https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | title = ZFS Pool Versions | accessdate =May 23, 2020 | publisher = Oracle Corporation | year = 2020 | archive-url = https://web.archive.org/web/20181218194040/https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | archive-date =May 23, 2020 | url-status = live}}</ref>
+| style="white-space:nowrap;" | Solaris 11.4 SRU 21<ref>{{cite web | url = https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | title = ZFS Pool Versions | access-date =May 23, 2020 | publisher = Oracle Corporation | year = 2020 | archive-url = https://web.archive.org/web/20181218194040/https://docs.oracle.com/cd/E37838_01/html/E61017/gjxle.html | archive-date =December 18, 2018 | url-status = live}}</ref>
 |Property Support for ZVOLs
+|-
+! {{no|48}}
+| style="white-space:nowrap;" | Solaris 11.4 SRU 45
+| File retention support<ref name="zpool-2022">{{cite web | url = https://docs.oracle.com/en/operating-systems/solaris/oracle-solaris/11.4/manage-zfs/zfs-pool-versions.html | title = ZFS Pool Versions | access-date = Jan 1, 2023 | publisher = Oracle Corporation | year = 2022 | archive-url = https://web.archive.org/web/20221221174928/https://docs.oracle.com/en/operating-systems/solaris/oracle-solaris/11.4/manage-zfs/zfs-pool-versions.html | archive-date = December 21, 2022 | url-status = live}}</ref>
+|-
+! {{no|49}}
+| style="white-space:nowrap;" | Solaris 11.4 SRU 51
+| Unicode versioning support<ref name="zpool-2022"/>
+|-
+! {{no|50}}
+| style="white-space:nowrap;" | Solaris 11.4 SRU 57
+| Raw crypto replication<ref name="zpool-2023">{{cite web | url = https://docs.oracle.com/en/operating-systems/solaris/oracle-solaris/11.4/manage-zfs/zfs-pool-versions.html | title = ZFS Pool Versions | access-date = Nov 17, 2023 | publisher = Oracle Corporation | year = 2023 }}</ref>
+|-
+! {{Proprietary|51}}
+| style="white-space:nowrap;" | Solaris 11.4 SRU 63
+| 'onexpiry' options for file retention<ref name="zpool-2023"/>
 |}
@@ Line 179: / Line 186: @@
 [[Category:Compression file systems]]
 [[Category:Disk file systems]]
-[[Category:Formerly free software]]
+[[Category:Formerly open-source or free software]]
 [[Category:Oracle software]]
 [[Category:RAID]]

v t e Oracle Solaris
Technologies	Direct binding Doors DTrace IPMP JumpStart mdb MPxIO SMF snoop Containers Crossbow Cluster Trusted Extensions ZFS
OpenSolaris, illumos	BeleniX Nexenta OS OpenIndiana OmniOS CE OpenSolaris for System z SmartOS Tribblix