storage revision 1.2.2.2
1 1.2.2.2 snj $NetBSD: storage,v 1.2.2.2 2009/01/26 05:17:44 snj Exp $ 2 1.1 agc 3 1.1 agc NetBSD Storage Roadmap 4 1.1 agc ====================== 5 1.1 agc 6 1.1 agc This is a small roadmap document, and deals with the storage and file 7 1.1 agc systems side of the operating system. 8 1.1 agc 9 1.1 agc NetBSD 5.0 will ship with the following storage elements in place: 10 1.1 agc 11 1.1 agc 1. puffs/putter 12 1.1 agc 2. ReFUSE 13 1.1 agc 3. rump 14 1.1 agc 4. RAIDframe 15 1.1 agc 5. iSCSI target 16 1.1 agc 6. iSCSI initiator 17 1.1 agc 7. cgd 18 1.1 agc 8. fss 19 1.2.2.1 snj 9. journalling functionality for ffs 20 1.2.2.1 snj 10. read/write support for UDF file systems 21 1.1 agc 22 1.2.2.1 snj The following elements and projects are pencilled in for 6.0, but 23 1.1 agc please do not rely on them being there. 24 1.1 agc 25 1.2.2.1 snj 11. devfs 26 1.1 agc 12. logical volume management 27 1.1 agc 13. a native port of Sun's ZFS 28 1.1 agc 14. ReFUSE-lowlevel 29 1.1 agc 15. web-based management tools for storage subsystems 30 1.1 agc 16. support for flash devices - NAND and MMC/SD 31 1.1 agc 32 1.2.2.1 snj The timescales for 6.0 are not known at the present time, but we would 33 1.2.2.1 snj expect to branch 6.0 late in 2009, with a view to a 6.0 release in 34 1.2.2.1 snj early 2010. 35 1.1 agc 36 1.2.2.2 snj We'll continue to update this roadmap as features and dates get firmed up. 37 1.1 agc 38 1.1 agc Some explanations 39 1.1 agc ================= 40 1.1 agc 41 1.2.2.1 snj 11. devfs 42 1.1 agc --------- 43 1.1 agc 44 1.1 agc Devfs will allow device special files (the files used to access 45 1.1 agc devices) to be created dynamically as and when they are attached to 46 1.1 agc the system. This will greatly reduce the number of files in a /dev 47 1.1 agc directory and removes the need to run the MAKEDEV script when support 48 1.1 agc for new devices is added to the NetBSD kernel. NetBSD's devfs 49 1.1 agc implementation will also allow multiple instances of the file system 50 1.1 agc to be mounted simultaneously, which is very useful for chroot jails. 51 1.1 agc 52 1.1 agc Responsible: mjf 53 1.1 agc 54 1.2.2.1 snj 9. Journalling Functionality for FFS 55 1.1 agc ------------------------------------- 56 1.1 agc 57 1.1 agc Contributed by Wasabi Systems, Inc, technical review on tech-kern 58 1.2 simonb in March 2008, merged to HEAD in July 2008, will be in NetBSD 5.0. 59 1.1 agc 60 1.1 agc 12. Logical Volume Management 61 1.1 agc ----------------------------- 62 1.1 agc 63 1.1 agc Based on the Linux lvm2 and devmapper software, with a new kernel component 64 1.2.2.1 snj for NetBSD written. Merged in 5.99.5 sources, will be in 6.0. 65 1.1 agc 66 1.1 agc Responsible: haad, martin 67 1.1 agc 68 1.1 agc 13. Native port of Sun's ZFS 69 1.1 agc ---------------------------- 70 1.1 agc 71 1.1 agc Mostly completed by ad@, this is the FreeBSD port of Sun's ZFS, with 72 1.1 agc modifications to make it compile on NetBSD 5.0 by ad@, and based on 73 1.1 agc the original Sun code for the block layer, rather than the GEOM-based 74 1.1 agc layer. 75 1.1 agc 76 1.2.2.1 snj Responsible: ad, many others 77 1.1 agc 78 1.1 agc 14. ReFUSE-lowlevel 79 1.1 agc ------------------- 80 1.1 agc 81 1.1 agc FUSE has two interfaces, the normal high-level one, and a lower-level 82 1.1 agc interface which is closer to the way standard file systems operate. This 83 1.1 agc adds the low-level functionality in the same way that ReFUSE adds the 84 1.1 agc high-level functionality 85 1.1 agc 86 1.1 agc Responsible: pooka, agc 87 1.1 agc 88 1.1 agc 15. Web-based Management tools for Storage Subsystems 89 1.1 agc ----------------------------------------------------- 90 1.1 agc 91 1.1 agc Standard tools for managing the storage subsystems that NetBSD provides, 92 1.1 agc using a standard web-server as the basic user interface on the storage 93 1.1 agc device, allowing remote management by a standard web browser. 94 1.1 agc 95 1.1 agc Responsible: agc 96 1.1 agc 97 1.1 agc 98 1.1 agc Alistair Crooks 99 1.2.2.1 snj Sun 25 Jan 2009 20:55:12 PST 100
Indexes created Sat Nov 01 21:09:44 GMT 2025