storage revision 1.1.8.2
1 1.1.8.2 mjf $NetBSD: storage,v 1.1.8.2 2008/10/05 20:11:18 mjf Exp $ 2 1.1.8.2 mjf 3 1.1.8.2 mjf NetBSD Storage Roadmap 4 1.1.8.2 mjf ====================== 5 1.1.8.2 mjf 6 1.1.8.2 mjf This is a small roadmap document, and deals with the storage and file 7 1.1.8.2 mjf systems side of the operating system. 8 1.1.8.2 mjf 9 1.1.8.2 mjf NetBSD 5.0 will ship with the following storage elements in place: 10 1.1.8.2 mjf 11 1.1.8.2 mjf 1. puffs/putter 12 1.1.8.2 mjf 2. ReFUSE 13 1.1.8.2 mjf 3. rump 14 1.1.8.2 mjf 4. RAIDframe 15 1.1.8.2 mjf 5. iSCSI target 16 1.1.8.2 mjf 6. iSCSI initiator 17 1.1.8.2 mjf 7. cgd 18 1.1.8.2 mjf 8. fss 19 1.1.8.2 mjf 20 1.1.8.2 mjf The following elements and projects are pencilled in for 5.0, but 21 1.1.8.2 mjf please do not rely on them being there. 22 1.1.8.2 mjf 23 1.1.8.2 mjf 9. pud 24 1.1.8.2 mjf 10. devfs 25 1.1.8.2 mjf 11. journalling functionality for ffs 26 1.1.8.2 mjf 12. logical volume management 27 1.1.8.2 mjf 13. a native port of Sun's ZFS 28 1.1.8.2 mjf 14. ReFUSE-lowlevel 29 1.1.8.2 mjf 15. web-based management tools for storage subsystems 30 1.1.8.2 mjf 16. support for flash devices - NAND and MMC/SD 31 1.1.8.2 mjf 17. read/write support for UDF file systems 32 1.1.8.2 mjf 33 1.1.8.2 mjf We are working on the following elements, and expect them to be in 6.0: 34 1.1.8.2 mjf 35 1.1.8.2 mjf 18. OSD (object storage device) 36 1.1.8.2 mjf 19. basic FCIP support 37 1.1.8.2 mjf 38 1.1.8.2 mjf We expect to branch for the 5.0 release in April or May 2008, which would 39 1.1.8.2 mjf put a NetBSD 5.0 Release date in Q4 2008. An annual release cycle would 40 1.1.8.2 mjf thus mean that 6.0 would be branched in April or May 2009. 41 1.1.8.2 mjf 42 1.1.8.2 mjf Pictorially, this looks like: 43 1.1.8.2 mjf 44 1.1.8.2 mjf 2008 2009 45 1.1.8.2 mjf Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug 46 1.1.8.2 mjf |===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===| 47 1.1.8.2 mjf 48 1.1.8.2 mjf | ------- 5.0 --------- | | ------- 6.0 49 1.1.8.2 mjf branch release branch 50 1.1.8.2 mjf 51 1.1.8.2 mjf 1-8 11,16 9,10,12,13,14,17 15 18 19 52 1.1.8.2 mjf 53 1.1.8.2 mjf We'll continue to update this roadmap as features and dates get firmed up. 54 1.1.8.2 mjf 55 1.1.8.2 mjf 56 1.1.8.2 mjf Some explanations 57 1.1.8.2 mjf ================= 58 1.1.8.2 mjf 59 1.1.8.2 mjf 10. devfs 60 1.1.8.2 mjf --------- 61 1.1.8.2 mjf 62 1.1.8.2 mjf Devfs will allow device special files (the files used to access 63 1.1.8.2 mjf devices) to be created dynamically as and when they are attached to 64 1.1.8.2 mjf the system. This will greatly reduce the number of files in a /dev 65 1.1.8.2 mjf directory and removes the need to run the MAKEDEV script when support 66 1.1.8.2 mjf for new devices is added to the NetBSD kernel. NetBSD's devfs 67 1.1.8.2 mjf implementation will also allow multiple instances of the file system 68 1.1.8.2 mjf to be mounted simultaneously, which is very useful for chroot jails. 69 1.1.8.2 mjf 70 1.1.8.2 mjf Responsible: mjf 71 1.1.8.2 mjf 72 1.1.8.2 mjf 11. Journalling Functionality for FFS 73 1.1.8.2 mjf ------------------------------------- 74 1.1.8.2 mjf 75 1.1.8.2 mjf Contributed by Wasabi Systems, Inc, technical review on tech-kern 76 1.1.8.2 mjf in March 2008, merged to HEAD in July 2008, will be in NetBSD 5.0. 77 1.1.8.2 mjf 78 1.1.8.2 mjf 12. Logical Volume Management 79 1.1.8.2 mjf ----------------------------- 80 1.1.8.2 mjf 81 1.1.8.2 mjf Based on the Linux lvm2 and devmapper software, with a new kernel component 82 1.1.8.2 mjf for NetBSD written. 83 1.1.8.2 mjf 84 1.1.8.2 mjf Responsible: haad, martin 85 1.1.8.2 mjf 86 1.1.8.2 mjf 13. Native port of Sun's ZFS 87 1.1.8.2 mjf ---------------------------- 88 1.1.8.2 mjf 89 1.1.8.2 mjf Mostly completed by ad@, this is the FreeBSD port of Sun's ZFS, with 90 1.1.8.2 mjf modifications to make it compile on NetBSD 5.0 by ad@, and based on 91 1.1.8.2 mjf the original Sun code for the block layer, rather than the GEOM-based 92 1.1.8.2 mjf layer. 93 1.1.8.2 mjf 94 1.1.8.2 mjf Responsible: oster, agc 95 1.1.8.2 mjf 96 1.1.8.2 mjf 14. ReFUSE-lowlevel 97 1.1.8.2 mjf ------------------- 98 1.1.8.2 mjf 99 1.1.8.2 mjf FUSE has two interfaces, the normal high-level one, and a lower-level 100 1.1.8.2 mjf interface which is closer to the way standard file systems operate. This 101 1.1.8.2 mjf adds the low-level functionality in the same way that ReFUSE adds the 102 1.1.8.2 mjf high-level functionality 103 1.1.8.2 mjf 104 1.1.8.2 mjf Responsible: pooka, agc 105 1.1.8.2 mjf 106 1.1.8.2 mjf 15. Web-based Management tools for Storage Subsystems 107 1.1.8.2 mjf ----------------------------------------------------- 108 1.1.8.2 mjf 109 1.1.8.2 mjf Standard tools for managing the storage subsystems that NetBSD provides, 110 1.1.8.2 mjf using a standard web-server as the basic user interface on the storage 111 1.1.8.2 mjf device, allowing remote management by a standard web browser. 112 1.1.8.2 mjf 113 1.1.8.2 mjf Responsible: agc 114 1.1.8.2 mjf 115 1.1.8.2 mjf 16. OSD 116 1.1.8.2 mjf ------- 117 1.1.8.2 mjf 118 1.1.8.2 mjf Based on the T10 specification, and the Intel reference code. An Object 119 1.1.8.2 mjf Storage Device, where some of the functionality of a file system is placed 120 1.1.8.2 mjf in the storage device. 121 1.1.8.2 mjf 122 1.1.8.2 mjf Responsible: agc 123 1.1.8.2 mjf 124 1.1.8.2 mjf 125 1.1.8.2 mjf Alistair Crooks 126 1.1.8.2 mjf Sun Mar 2 23:31:03 GMT 2008 127
Indexes created Sun Oct 26 21:10:03 GMT 2025