Hi Mathias, this topic has been discussed a lot in this list. Please refer to the thread called "Xen and iSCSI". Hope that your questions will be answered :) Regards, Michael On Thursday 02 March 2006 19:13, Mathias Diehl wrote:> Hi List, > > now, that I got some basic understanding how to setup a propper xen > networking I would like to get closer to the "xm migrate" feature. > > Refering to the Wiki (connection refused error from twisted referring to > port 111) it seem not possible at all (at least for me and for the moment) > as I use debian sarge with xen2.0.7 . > > However, some questions to get closer to the matter: > > Does this issue refere to xen3 or also to xen2.0.7? > > What would be a propper aproach to store the virtual domains? Actually I > use LVM for my domU''s and their swap. No I don''t really understand yet > what''s happening when migrating a domain. As the lvm can''t be moved (I > guess) is migration with lvm possible at all? On the other hand, if I use > file-baked domU''s, will the entiere fiile be transfered? Seem''s quite > unlikely when thinking about domU''s with som G of size... So, better to use > NFS and store the images somewhere centralised? > > Hmmm... > > Any ideas how to handle that issue? I''m pretty sure there are people around > handling masses of virtual servers and moving them around. > > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users-- ---------------------------------------------------------------------------------------- Michael Mey Thinking Objects Software GmbH | mailto: michael.mey@to.com Lilienthalstrasse 2/1 | phone: +49 711 88770-147 70825 Stuttgart-Korntal, Germany | fax: +49 711 88770-449 ---------------------------------------------------------------------------------------- _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi List, now, that I got some basic understanding how to setup a propper xen networking I would like to get closer to the "xm migrate" feature. Refering to the Wiki (connection refused error from twisted referring to port 111) it seem not possible at all (at least for me and for the moment) as I use debian sarge with xen2.0.7 . However, some questions to get closer to the matter: Does this issue refere to xen3 or also to xen2.0.7? What would be a propper aproach to store the virtual domains? Actually I use LVM for my domU''s and their swap. No I don''t really understand yet what''s happening when migrating a domain. As the lvm can''t be moved (I guess) is migration with lvm possible at all? On the other hand, if I use file-baked domU''s, will the entiere fiile be transfered? Seem''s quite unlikely when thinking about domU''s with som G of size... So, better to use NFS and store the images somewhere centralised? Hmmm... Any ideas how to handle that issue? I''m pretty sure there are people around handling masses of virtual servers and moving them around. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On 3/2/06, Mathias Diehl <md@evoconcept.de> wrote:> > > Hi List, > > now, that I got some basic understanding how to setup a propper xen > networking I would like to get closer to the "xm migrate" feature. > > Refering to the Wiki (connection refused error from twisted referring to > port 111) it seem not possible at all (at least for me and for the moment) > as I use debian sarge with xen2.0.7 . > > However, some questions to get closer to the matter: > > Does this issue refere to xen3 or also to xen2.0.7? > > What would be a propper aproach to store the virtual domains? Actually I > use > LVM for my domU''s and their swap. No I don''t really understand yet what''s > happening when migrating a domain. As the lvm can''t be moved (I guess) is > migration with lvm possible at all? On the other hand, if I use file-baked > domU''s, will the entiere fiile be transfered? Seem''s quite unlikely when > thinking about domU''s with som G of size... So, better to use NFS and > store > the images somewhere centralised?One thing to note is the device node from which the boot media was used on source machine should be present on the target machine. Hence NFS mounts are not the solution. As mentioned in other reply, iSCSI would be one of the solutions. SAN storage would be another but expensive alternative. We used AOE (ATA over ethernet) solution. These are the storage device sharing solutions for network migration. In other form of migration - manual migration - one can use removable media as well, provided it shows up as the same device node on both source and target machines. HTH Jayesh Hmmm...> > Any ideas how to handle that issue? I''m pretty sure there are people > around > handling masses of virtual servers and moving them around. > > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >-- Jayesh ------------------------------------------------------------------------ Everything you can imagine is real - Pablo Picasso _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
At 09:21 AM 3/3/2006, Jayesh Salvi wrote:>iSCSI would be one of the solutions. SAN storage would be another >but expensive alternative. We used AOE (ATA over ethernet) solution. >These are the storage device sharing solutions for network >migration. In other form of migration - manual migration - one can >use removable media as well, provided it shows up as the same device >node on both source and target machines.I believe you can also use GNBD (with or without GLVM/GFS), eNBD and DRBD in a variety of configuration if you want to avoid expensive iSCSI or FC equipment. I''ve only done this successfully tested this with GNBD myself. And while using removable media is an option, it totally eliminates any possibility of near instant live migrations. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users