virtualization revision 1.1
1 1.1 agc $NetBSD: virtualization,v 1.1 2008/03/19 20:12:53 agc Exp $ 2 1.1 agc 3 1.1 agc NetBSD Virtualization Roadmap 4 1.1 agc ============================= 5 1.1 agc 6 1.1 agc This is a small roadmap document, and deals with the virtualization 7 1.1 agc side of the operating system. 8 1.1 agc 9 1.1 agc NetBSD 5.0 will ship with the following virtualization elements in 10 1.1 agc place: 11 1.1 agc 12 1.1 agc 1. Xen 3 Dom0 [i386/amd64] 13 1.1 agc 2. Xen 3 DomU [i386/amd64] 14 1.1 agc 3. Xen 3 PAE DomU [i386] 15 1.1 agc 16 1.1 agc The following elements and projects are pencilled in for 5.0, but 17 1.1 agc please do not rely on them being there. 18 1.1 agc 19 1.1 agc 4. NetBSD/usermode 20 1.1 agc 5. virtualization jails via secmodel 21 1.1 agc 22 1.1 agc The following projects are expected to be included in NetBSD 6.0 23 1.1 agc 24 1.1 agc 6. iSCSI booting 25 1.1 agc 7. iSCSI device cloning 26 1.1 agc 8. Xen domU migration, suspend and resume 27 1.1 agc 9. Xen balloon driver support 28 1.1 agc 29 1.1 agc We expect to branch for the 5.0 release in April or May 2008, which would 30 1.1 agc put a NetBSD 5.0 Release date in Q4 2008. An annual release cycle would 31 1.1 agc thus mean that 6.0 would be branched in April or May 2009. 32 1.1 agc 33 1.1 agc Pictorially, this looks like: 34 1.1 agc 35 1.1 agc 2008 2009 36 1.1 agc Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug 37 1.1 agc |===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===| 38 1.1 agc 39 1.1 agc | ------- 5.0 --------- | | ------- 6.0 40 1.1 agc branch release branch 41 1.1 agc 42 1.1 agc 1-3 4,5 6 7 8 9 43 1.1 agc 44 1.1 agc We'll continue to update this roadmap as features and dates get firmed up. 45 1.1 agc 46 1.1 agc 47 1.1 agc Some explanations 48 1.1 agc ================= 49 1.1 agc 50 1.1 agc 4. NetBSD/usermode 51 1.1 agc ------------------ 52 1.1 agc 53 1.1 agc NetBSD/usermode is an port of NetBSD to a POSIX-compatible user-space, with 54 1.1 agc the intention that it should be possible to run the usermode version of 55 1.1 agc NetBSD on any POSIX-compatible operating system. 56 1.1 agc 57 1.1 agc Responsible: jmcneill 58 1.1 agc 59 1.1 agc 5. Virtualization Jails via secmodel 60 1.1 agc ------------------------------------ 61 1.1 agc 62 1.1 agc One novel way of creating jails for virtualization is to use a new 63 1.1 agc secmodel (part of the kauth framework), to isolate processes into 64 1.1 agc jail-based virtual machines. This is the basis of a paper to appear 65 1.1 agc in the AsiaBSDcon proceedings in March 2008. 66 1.1 agc 67 1.1 agc Responsible: bad 68 1.1 agc 69 1.1 agc 70 1.1 agc 6. iSCSI booting 71 1.1 agc ---------------- 72 1.1 agc 73 1.1 agc In order to make Xen domains migration-friendly, the storage that the 74 1.1 agc domain uses must be based on some form of network-centric storage, either 75 1.1 agc NFS, or a SAN or IP-SAN. For IP-SANs, iSCSI booting will be used. 76 1.1 agc 77 1.1 agc Responsible: agc 78 1.1 agc 79 1.1 agc 7. iSCSI device cloning 80 1.1 agc ----------------------- 81 1.1 agc 82 1.1 agc To minimise the storage requirements for multiple domU booting, using 83 1.1 agc a standard root filesystem or block device for the domU is required, along 84 1.1 agc with some form of copy-on-write mechanism to preserve any modifications 85 1.1 agc that are made. 86 1.1 agc 87 1.1 agc Responsible: agc 88 1.1 agc 89 1.1 agc 8. Xen domU migration, suspend and resume 90 1.1 agc ----------------------------------------- 91 1.1 agc 92 1.1 agc Xen domU migration is where a domU domain is moved from one dom0 to 93 1.1 agc another dom0 on the same vlan (to avoid networking problems, the 94 1.1 agc virtual arp address migrates with the domU itself). 95 1.1 agc 96 1.1 agc Responsible: bouyer 97 1.1 agc 98 1.1 agc 9. Xen balloon driver support 99 1.1 agc ----------------------------- 100 1.1 agc 101 1.1 agc The balloon driver allows more memory to be added to a running Xen domU 102 1.1 agc instance; this allows extra memory to be used by the domU for resource 103 1.1 agc peak needs. 104 1.1 agc 105 1.1 agc Responsible: bouyer 106 1.1 agc 107 1.1 agc 108 1.1 agc Alistair Crooks 109 1.1 agc Thu Mar 6 22:36:19 GMT 2008 110
Indexes created Tue Sep 23 23:09:58 GMT 2025