storage revision 1.1.2.2
1 1.1.2.2 matt $NetBSD: storage,v 1.1.2.2 2008/03/23 00:23:07 matt Exp $ 2 1.1.2.2 matt 3 1.1.2.2 matt NetBSD Storage Roadmap 4 1.1.2.2 matt ====================== 5 1.1.2.2 matt 6 1.1.2.2 matt This is a small roadmap document, and deals with the storage and file 7 1.1.2.2 matt systems side of the operating system. 8 1.1.2.2 matt 9 1.1.2.2 matt NetBSD 5.0 will ship with the following storage elements in place: 10 1.1.2.2 matt 11 1.1.2.2 matt 1. puffs/putter 12 1.1.2.2 matt 2. ReFUSE 13 1.1.2.2 matt 3. rump 14 1.1.2.2 matt 4. RAIDframe 15 1.1.2.2 matt 5. iSCSI target 16 1.1.2.2 matt 6. iSCSI initiator 17 1.1.2.2 matt 7. cgd 18 1.1.2.2 matt 8. fss 19 1.1.2.2 matt 20 1.1.2.2 matt The following elements and projects are pencilled in for 5.0, but 21 1.1.2.2 matt please do not rely on them being there. 22 1.1.2.2 matt 23 1.1.2.2 matt 9. pud 24 1.1.2.2 matt 10. devfs 25 1.1.2.2 matt 11. journalling functionality for ffs 26 1.1.2.2 matt 12. logical volume management 27 1.1.2.2 matt 13. a native port of Sun's ZFS 28 1.1.2.2 matt 14. ReFUSE-lowlevel 29 1.1.2.2 matt 15. web-based management tools for storage subsystems 30 1.1.2.2 matt 16. support for flash devices - NAND and MMC/SD 31 1.1.2.2 matt 17. read/write support for UDF file systems 32 1.1.2.2 matt 33 1.1.2.2 matt We are working on the following elements, and expect them to be in 6.0: 34 1.1.2.2 matt 35 1.1.2.2 matt 18. OSD (object storage device) 36 1.1.2.2 matt 19. basic FCIP support 37 1.1.2.2 matt 38 1.1.2.2 matt We expect to branch for the 5.0 release in April or May 2008, which would 39 1.1.2.2 matt put a NetBSD 5.0 Release date in Q4 2008. An annual release cycle would 40 1.1.2.2 matt thus mean that 6.0 would be branched in April or May 2009. 41 1.1.2.2 matt 42 1.1.2.2 matt Pictorially, this looks like: 43 1.1.2.2 matt 44 1.1.2.2 matt 2008 2009 45 1.1.2.2 matt Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug 46 1.1.2.2 matt |===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===| 47 1.1.2.2 matt 48 1.1.2.2 matt | ------- 5.0 --------- | | ------- 6.0 49 1.1.2.2 matt branch release branch 50 1.1.2.2 matt 51 1.1.2.2 matt 1-8 11,16 9,10,12,13,14,17 15 18 19 52 1.1.2.2 matt 53 1.1.2.2 matt We'll continue to update this roadmap as features and dates get firmed up. 54 1.1.2.2 matt 55 1.1.2.2 matt 56 1.1.2.2 matt Some explanations 57 1.1.2.2 matt ================= 58 1.1.2.2 matt 59 1.1.2.2 matt 10. devfs 60 1.1.2.2 matt --------- 61 1.1.2.2 matt 62 1.1.2.2 matt Devfs will allow device special files (the files used to access 63 1.1.2.2 matt devices) to be created dynamically as and when they are attached to 64 1.1.2.2 matt the system. This will greatly reduce the number of files in a /dev 65 1.1.2.2 matt directory and removes the need to run the MAKEDEV script when support 66 1.1.2.2 matt for new devices is added to the NetBSD kernel. NetBSD's devfs 67 1.1.2.2 matt implementation will also allow multiple instances of the file system 68 1.1.2.2 matt to be mounted simultaneously, which is very useful for chroot jails. 69 1.1.2.2 matt 70 1.1.2.2 matt Responsible: mjf 71 1.1.2.2 matt 72 1.1.2.2 matt 11. Journalling Functionality for FFS 73 1.1.2.2 matt ------------------------------------- 74 1.1.2.2 matt 75 1.1.2.2 matt Contributed by Wasabi Systems, Inc, technical review on tech-kern 76 1.1.2.2 matt in March 2008. 77 1.1.2.2 matt 78 1.1.2.2 matt 12. Logical Volume Management 79 1.1.2.2 matt ----------------------------- 80 1.1.2.2 matt 81 1.1.2.2 matt Based on the Linux lvm2 and devmapper software, with a new kernel component 82 1.1.2.2 matt for NetBSD written. 83 1.1.2.2 matt 84 1.1.2.2 matt Responsible: haad, martin 85 1.1.2.2 matt 86 1.1.2.2 matt 13. Native port of Sun's ZFS 87 1.1.2.2 matt ---------------------------- 88 1.1.2.2 matt 89 1.1.2.2 matt Mostly completed by ad@, this is the FreeBSD port of Sun's ZFS, with 90 1.1.2.2 matt modifications to make it compile on NetBSD 5.0 by ad@, and based on 91 1.1.2.2 matt the original Sun code for the block layer, rather than the GEOM-based 92 1.1.2.2 matt layer. 93 1.1.2.2 matt 94 1.1.2.2 matt Responsible: oster, agc 95 1.1.2.2 matt 96 1.1.2.2 matt 14. ReFUSE-lowlevel 97 1.1.2.2 matt ------------------- 98 1.1.2.2 matt 99 1.1.2.2 matt FUSE has two interfaces, the normal high-level one, and a lower-level 100 1.1.2.2 matt interface which is closer to the way standard file systems operate. This 101 1.1.2.2 matt adds the low-level functionality in the same way that ReFUSE adds the 102 1.1.2.2 matt high-level functionality 103 1.1.2.2 matt 104 1.1.2.2 matt Responsible: pooka, agc 105 1.1.2.2 matt 106 1.1.2.2 matt 15. Web-based Management tools for Storage Subsystems 107 1.1.2.2 matt ----------------------------------------------------- 108 1.1.2.2 matt 109 1.1.2.2 matt Standard tools for managing the storage subsystems that NetBSD provides, 110 1.1.2.2 matt using a standard web-server as the basic user interface on the storage 111 1.1.2.2 matt device, allowing remote management by a standard web browser. 112 1.1.2.2 matt 113 1.1.2.2 matt Responsible: agc 114 1.1.2.2 matt 115 1.1.2.2 matt 16. OSD 116 1.1.2.2 matt ------- 117 1.1.2.2 matt 118 1.1.2.2 matt Based on the T10 specification, and the Intel reference code. An Object 119 1.1.2.2 matt Storage Device, where some of the functionality of a file system is placed 120 1.1.2.2 matt in the storage device. 121 1.1.2.2 matt 122 1.1.2.2 matt Responsible: agc 123 1.1.2.2 matt 124 1.1.2.2 matt 125 1.1.2.2 matt Alistair Crooks 126 1.1.2.2 matt Sun Mar 2 23:31:03 GMT 2008 127
Indexes created Thu Oct 30 03:10:01 GMT 2025