Difference between revisions of "Projects"
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Grahamperrin (talk | contribs) m (Consistency: "ZFS on Linux" (not "ZFSOnLinux").) |
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** want to be able to run most of testrunner (and/or STF) test suite against userland implementation | ** want to be able to run most of testrunner (and/or STF) test suite against userland implementation | ||
* ZFS (ZPL) Version Feature Flags | * ZFS (ZPL) Version Feature Flags | ||
** Import | ** Import ZFS on Linux sa=xattr into Illumos | ||
* /dev/zfs ioctl interface versioning | * /dev/zfs ioctl interface versioning | ||
** Ensure that future additions/changes to the interface maintain maximum compatibility with userland tools | ** Ensure that future additions/changes to the interface maintain maximum compatibility with userland tools | ||
** Enable FreeBSD Linux jails / Illumos lx brandz to use | ** Enable FreeBSD Linux jails / Illumos lx brandz to use ZFS on Linux utilities | ||
* Port ZPIOS [http://zfsonlinux.org/example-zpios.html] to Illumos from | * Port ZPIOS [http://zfsonlinux.org/example-zpios.html] to Illumos from ZFS on Linux | ||
** This requires a rewrite to stop using Linux interfaces. | ** This requires a rewrite to stop using Linux interfaces. | ||
* Virtual machine images with OpenZFS (see [[Talk:Project_Ideas#Virtual_machine_images|discussion on talk page]]) | * Virtual machine images with OpenZFS (see [[Talk:Project_Ideas#Virtual_machine_images|discussion on talk page]]) | ||
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** images for installing to real hardware: | ** images for installing to real hardware: | ||
*** Raspberry Pi ([[User:Ryao | ryao]] is working on this) | *** Raspberry Pi ([[User:Ryao | ryao]] is working on this) | ||
**** Based on | **** Based on ZFS on Linux, which already works on ARM | ||
**** Some unresolved issues with running out of kernel virtual address space | **** Some unresolved issues with running out of kernel virtual address space | ||
Revision as of 07:34, 9 September 2013
Inter-platform coordination
Ideas for projects that would help coordinate changes between platforms:
- Mechanism for pull changes from one place to another
- Make it easier to build, test, code review, and integrate ZFS changes into illumos
- Cross-Platform Test Suite
- One sourcebase rather than porting STF to every platform?
- Maybe integrate XFS Test Suite
- Userland ZFS
- we already have ztest / libzpool
- want to expand this to also be able to test more of zfs in userland
- want to be able to run /sbin/zfs, /sbin/zpool against userland implementation
- want to be able to run most of testrunner (and/or STF) test suite against userland implementation
- ZFS (ZPL) Version Feature Flags
- Import ZFS on Linux sa=xattr into Illumos
- /dev/zfs ioctl interface versioning
- Ensure that future additions/changes to the interface maintain maximum compatibility with userland tools
- Enable FreeBSD Linux jails / Illumos lx brandz to use ZFS on Linux utilities
- Port ZPIOS [1] to Illumos from ZFS on Linux
- This requires a rewrite to stop using Linux interfaces.
- Virtual machine images with OpenZFS (see discussion on talk page)
- to easily try OpenZFS on a choice of distributions within a virtual machine
- images could be built for running on public clouds
- images for installing to real hardware:
- Raspberry Pi ( ryao is working on this)
- Based on ZFS on Linux, which already works on ARM
- Some unresolved issues with running out of kernel virtual address space
- Raspberry Pi ( ryao is working on this)
General features
- device removal
- based on indirect vdevs, rather than bprewrite
- resumable send/receive
- work in progress at Delphix
- Storage of small files in dnode
- work in progress at Delphix
- Reflink[2] support
- Unified ashift handling [3]
- Collapsible ZAP objects (e.g. fatzip -> microzap downgrades)
- Raidz Hybrid Allocator (preferably compatible with pool version 29 for Solaris 10u11 compatibility)
- 1MB blocksize (preferably compatible with pool version 32, as pool-feature-flag)
- Replace larger ZIO caches with explicit pages.
- Subproject: Document useful kernel interfaces for page manipulation on various platforms
- Improved SPA namespace collision management
- Mostly needed by virtual machine hosts
- work in progress in Gentoo
- Temporary pool names in zpool import [4]
- Temporary pool names in zpool create
- TRIM Support
- Realtime TRIM
- Freespace TRIM
- Walk metaslab space maps and issue discard commands to the vdevs.
- Platform agnostic encryption support (preferably compatible with pool version 30, as pool-feature-flag)
- The early ZFS encryption code published in the zfs-crypto repository of OpenSolaris.org could be a starting point. A copy is available from Richard Yao upon request.
Please add and edit ideas here