Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
I will double check Xen and drbd0.7 tunning. I have read some xen wikis and documentations and nothing, I asked on IRC (freenode) and they said me that have nothing to do. Anyway I will look a little more. Thank you one more time. On 7/10/06, Lars Ellenberg <Lars.Ellenberg at linbit.com> wrote: > > / 2006-07-06 13:59:15 -0300 > \ Igor Morgado: > > Lars.. > > > > My environment "needs" of drbd8. Because live migration works flawlessly > with > > pri/pri resources. Using sec/pri I need to do a big trip to achieve > this. > > > > sleep the vm > > put local disk as secondary > > copy the vm state to remote server > > put remote disk as primary > > load the vm state. > > > > This procedure takes 20-30 seconds to complish. I can even keep the > session > > (because tcp/ip timeout) > > > > With pri/pri I do the following: > > put remote disk as primary > > start xen live migration > > put local disk as secondary > > > > The procedure takes 1-3 seconds, and I have only 1 second of delay in > session > > (most of users cannot even notice the migration). > > are you sure that the latest xen does not behave better with drbd-0.7? > I think there have been some adjustments to xen as to when exactly in > the migration process it needs the "shared" block device. > > > My question is: > > > > Will be any compatibility with drbd7 and 8? there is a way to migrate > drbd7 > > metadata to 8 without data loss? > > you will be able to migrate drbd 0.7 -> drbd 8 without data loss, > but probably you'd need a downtime. the drbdmeta command is able to > convert meta data of different versions. but currently drbd8 and drbd0.7 > don't understand each other on the wire, so you cannot do roling > upgrades. we did some preparations for a compatibility layer within the > drbd communications, but we did not implement it at all (yet). > > -- > : Lars Ellenberg Tel +43-1-8178292-0 : > : LINBIT Information Technologies GmbH Fax +43-1-8178292-82 : > : Schoenbrunner Str. 244, A-1120 Vienna/Europe http://www.linbit.com : > __ > please use the "List-Reply" function of your email client. > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20060710/7c18be51/attachment.htm>