virtualization revision 1.4
1 1.4 agc $NetBSD: virtualization,v 1.4 2009/09/15 21:07:58 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 1.4 agc 1. NetBSD/usermode 10 1.4 agc 2. virtualization jails via secmodel 11 1.4 agc 3. iSCSI booting 12 1.4 agc 4. iSCSI device cloning 13 1.4 agc 5. Xen domU migration, suspend and resume 14 1.4 agc 6. Xen balloon driver support 15 1.1 agc 16 1.4 agc We currently expect to branch 6.0 in the March 2010 timeframe, with a view 17 1.4 agc to a 6.0 release later in 2010. 18 1.1 agc 19 1.1 agc We'll continue to update this roadmap as features and dates get firmed up. 20 1.1 agc 21 1.1 agc 22 1.1 agc Some explanations 23 1.1 agc ================= 24 1.1 agc 25 1.4 agc 1. NetBSD/usermode 26 1.1 agc ------------------ 27 1.1 agc 28 1.4 agc NetBSD/usermode is an port of NetBSD to a POSIX-compatible user-space, 29 1.4 agc with the intention that it should be possible to run the usermode 30 1.4 agc version of NetBSD on any POSIX-compatible operating system. This code 31 1.4 agc has been committed to the repository, but more work is needed. 32 1.1 agc 33 1.1 agc Responsible: jmcneill 34 1.1 agc 35 1.4 agc 2. Virtualization Jails via secmodel 36 1.1 agc ------------------------------------ 37 1.1 agc 38 1.1 agc One novel way of creating jails for virtualization is to use a new 39 1.1 agc secmodel (part of the kauth framework), to isolate processes into 40 1.4 agc jail-based virtual machines. This is the basis of a paper given by 41 1.4 agc bad@ at AsiaBSDcon in March 2008. 42 1.1 agc 43 1.1 agc Responsible: bad 44 1.1 agc 45 1.4 agc 3. iSCSI booting 46 1.1 agc ---------------- 47 1.1 agc 48 1.1 agc In order to make Xen domains migration-friendly, the storage that the 49 1.1 agc domain uses must be based on some form of network-centric storage, either 50 1.4 agc NFS, or a SAN or IP-SAN. For IP-SANs, iSCSI booting will be used. This 51 1.4 agc is dependent on the in-kernel iSCSI initiator project completing. 52 1.1 agc 53 1.1 agc Responsible: agc 54 1.1 agc 55 1.4 agc 4. iSCSI device cloning 56 1.1 agc ----------------------- 57 1.1 agc 58 1.1 agc To minimise the storage requirements for multiple domU booting, using 59 1.1 agc a standard root filesystem or block device for the domU is required, along 60 1.1 agc with some form of copy-on-write mechanism to preserve any modifications 61 1.1 agc that are made. 62 1.1 agc 63 1.1 agc Responsible: agc 64 1.1 agc 65 1.4 agc 5. Xen domU migration, suspend and resume 66 1.1 agc ----------------------------------------- 67 1.1 agc 68 1.1 agc Xen domU migration is where a domU domain is moved from one dom0 to 69 1.1 agc another dom0 on the same vlan (to avoid networking problems, the 70 1.4 agc virtual arp address migrates with the domU itself). jym is actively 71 1.4 agc working on this, and preliminary results are good. 72 1.1 agc 73 1.4 agc Responsible: jym, bouyer 74 1.1 agc 75 1.4 agc 6. Xen balloon driver support 76 1.1 agc ----------------------------- 77 1.1 agc 78 1.1 agc The balloon driver allows more memory to be added to a running Xen domU 79 1.1 agc instance; this allows extra memory to be used by the domU for resource 80 1.4 agc peak needs. cherry has made a preliminary balloon driver - some testing 81 1.4 agc is needed before it can be committed. 82 1.1 agc 83 1.4 agc Responsible: cherry 84 1.1 agc 85 1.1 agc 86 1.1 agc Alistair Crooks 87 1.4 agc Tue 15 Sep 2009 08:06:34 PDT 88
Indexes created Wed Sep 24 05:09:52 GMT 2025