similar to: Live Migration Question

I use live migration with xen (stable) domain on NFS root filesystem. I do not understand how to setup and migrating swap space in xen for live migration. two VBD as swap disk? Swap space on NFS?? Any help would be greatly appreciated, Thanks Daniele _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Good morning, I installed 3 fedora core 7 machines with xen 3.1 Two machine (hp dl 360) are identical and windows guest live migration works fine. One of them is a HP dl 580 and live migration from/to hp 360 does not work. Stopping and restarting guests works in any case also if hardware is non identical. I read somewhere machine must be identical for live migration: is it true ? Why live

Hello, I am now testing XEN live migration on 3 physical hosts with XEN 4.0.1 pvops Ubuntu 10.10 (2.6.35-22). The kernel is compiled and built with default selections plus the support for ext4 file system as well as the support for network file system server. The three hosts are connected by one D-link gigabit switch (DGS-2205). I find that: 1) If the 3 hosts are booted about the same time, the

Hi all, I think I have a pretty good grasp on domain save/migration code in xc_domain_save() in Xen 3.2.x, except for the what the is_mapped() macro is doing in following: /* Hypercall interfaces operate in PFNs for HVM guests * and MFNs for PV guests */ if ( hvm ) pfn_type[batch] = n; else pfn_type[batch] = pfn_to_mfn(n); if ( !is_mapped(pfn_type[batch]) ) { /* ** not currently

Hi all, We met a problem on Windows live migration handing. We use Xen 3.3s full virtualization mode to create and migrate the Windows VMs based on QEMU. The error information is as follows: 1) log said the migration was successful. However, that migrated VM on the destination hanged wherein CPU utilization kept about 48%. 2) Using XenTrace, found that the loop consisting of three events as

Hi, I''d like to test the stability of live migration during heavy load of domU. scenario: - both dom0s and domU are running on Debian Sarge. - script on dom0 triggers live-migration to the other dom0 - domU is running I/O tests, e.g. bonnie++ - domUs root- (ext3) and swap fs is stored on two partitions in a san - san is connected using fibre channel cards to both dom0s - san in dom0

Hi Ola, There was some code done by IBM a few years ago in conjunction with a University that worked and showed the benefits but AFAIK it was never integrated into Xen. The research paper is around on the web. A few of us requested RDMA migration support for version 4.0 and it is at the top of the request list, I suspect it is probably a case of enough people asking and Citrix approving.

I want to add some parameters when vm is migrated. As I can see , vmm will use xc_domain_save(tools\libxc\Xc_domain_save.c) function ,and the main function of xc_save.c is responsible for inputting parameters. so I just want to know which function will use this executable file. Thanks Min Li School of Computer Science and Technology Cluster and Grid Computing Lab Services Computing Technology

Hello everybody! I have a couple of questions regarding the live migration feature in XEN. How exactly does it work? I have read in a paper on the Internet that there are three phases of the live migration process: 1. Push phase: iteratively copy the memory of the VM from the old host to the new host 2. Stop-and-copy phase: when XEN sees that there is a certain amount of pages that get dirtied

when performing a live migration i know the contents of the ram is copied over two the new xen server, but how about the contents of the swap partition. currently I have the swap partition in a seperate loopback file from the root partition. if i want to do a live migration, do i have to give the new server access to the swap partition file along with the root partition file? of can i just

Hi all, I''am having problems using Xen 3.1. I''d like to use live migration, in a full virtualization environment (VT). First, when I migrate a guest domain, the vnc port is no longer available as soon as the guest migrated. I''m using drbd 8 to be able to live migrate the VM without using shared file system. I''ve modified xm utils to allow xen changing drbd

Thought this would be interesting for some people: Version 8.0.6 of DRBD comes with a nice script that adds support for a config like disk = [ ''drbd:r0,hda1,w'' ] This supports migration and live migration without having to take care of drbd yourself. Really nice feature. Read changelog on 8.0.6 on: http://svn.drbd.org/drbd/branches/drbd-8.0/ChangeLog Regards Dominik

Hi, Is there a support for live-migration of pae and 64 bit (x86_64 and IA64) architectures on Xen 3.0? If I am not wrong , live-migration of pae and 64 bit architectures wasn''t supported previously in unstable Xen. ( I simply don''t have these platforms handy currently for checking it). Regards, Rami _______________________________________________ Xen-devel mailing list

Hi, The error that gives when making the migration (xm migration --live) me is the following one: Error: /usr/lib/xen/bin/xc_save 10 18 3 0 0 1 failed Somebody knows that it means and so that it happens? Thanks, -Javier. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Hi, For my experiment on live migration of Xen VMs, I want the MAC address of the migrated VM (domU) to change soon after migration, but just before the Gratuitous ARP reply is sent. Do you know where in the code/scripts I can add this feature? Thanks, Vikram _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

Hi, For my experiment on live migration of Xen VMs, I want the MAC address of the migrated VM (domU) to change soon after migration, but just before the Gratuitous ARP reply is sent. Do you know where in the code/scripts I can add this feature? Thanks, Vikram _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

Hi. I''ve got a strange problem with xen migration under Ubuntu Gutsy 7.10. I have two machines set up with a DRBD 8.2.4 partition shared between them. This uses the new block-drbd feature where you can set a disk partition using something like this disk = [ ''drbd:storm,sda1,w'' ] in the .cfg file. This allows me to do live migration now. However,

Hi, Live migration was working well for me with 3.1. Recently I move to 3.2, and now live migration does not work anymore. Here is what i obtain on source node : ---- xm migrate --live webdav node2 Error: /usr/lib/xen-3.2-1/bin/xc_save 26 6 0 0 1 failed Usage: xm migrate <Domain> <Host> [...] ---- And in the xend.log (still on the source node) : ---- [2008-03-03 10:12:52 15205] INFO

Hi, I found that w/ cset 14718, live migration will fail on ia32e hv. The qemu window will never disappear after ''xm migrate'' command return, and the guest will not restore on the dest machine either. xend.log is attached. http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=948 Best regards, Fan _______________________________________________ Xen-devel mailing list

Hello, somene knows who to realize a Live Migration and what I need to do it? Thanks. Gustavo Alkmim _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users