Martijn Grendelman schreef op 6-2-2014 17:02: > Hi, > > Dan Yasny schreef op 6-2-2014 16:38: >> This is the same question as in RHEL or Fedora IMO: do you want the >> bleeding edge features and lower code stability and reliability, or do >> you want to have techsupport (and that means a real SLA and an >> escalation path up to the engineering, if need be) behind you, stable >> and reliable, well tested code, but less of the advanced features. > > Thank you, this is what I thought. > > It's still a hard decision. If the stability and "testedness" of RHEL is > anything to go by, it's not reassuring at all (although it may be better > than Fedora, I don't know), although I must say that RedHat support is > helpful at times. > > Thanks again, I think I know enough :-) Or not ;-) Would it be possible (and doable) to migrate from oVirt to RHEV? If we start out with oVirt, but after some time we decide that RHEV would be a better fit after all, would it be possible to hook up existing oVirt/VDSM hosts to a RHEV engine, or am I thinking way too simple now? Cheers, Martijn. >> >> >> On Thu, Feb 6, 2014 at 8:06 AM, Martijn Grendelman >> <martijn.grendelman(a)isaac.nl <mailto:martijn.grendelman@isaac.nl>> wrote: >> >> Hi, >> >> This may be the wrong place to ask, but I'm looking for input to form an >> opinion on an "oVirt or RHEV" question within my company. >> >> I have been running oVirt for about 5 months now, and I'm quite >> comfortable with its features and maintenance procedures. We are now >> planning to build a private virtualization cluster for hosting clients' >> applications as well as our own. Some people in the company are >> questioning whether we should buy RHEV, but at this point, I can't see >> the benefits. >> >> Can anyone on this list shed a light on when RHEV might be a better >> choice than oVirt? What are the benefits? The trade-offs? >> >> I am looking for pragmatic, real-world things, not marketing mumbo >> jumbo. That, I can get from redhat.com <http://redhat.com> ;-) >> >> Best regards, >> Martijn. >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org <mailto:Users@ovirt.org> >> http://lists.ovirt.org/mailman/listinfo/users >> >> > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users

On 02/06/2014 06:21 PM, Dan Yasny wrote: > I haven't tried it recently, but last time I did, the export domains > were compatible. Worst case, you can always do a manual disk move there is no direct upgrade path, though it may work. for now export/import should be ok. a maybe on the future detach/attach storage domain use case (not implemented yet).

> > > On Thu, Feb 6, 2014 at 9:18 AM, Martijn Grendelman > <martijn.grendelman(a)isaac.nl <mailto:martijn.grendelman@isaac.nl>> wrote: > > Martijn Grendelman schreef op 6-2-2014 17:02: > > Hi, > > > > Dan Yasny schreef op 6-2-2014 16:38: > >> This is the same question as in RHEL or Fedora IMO: do you want the > >> bleeding edge features and lower code stability and reliability, > or do > >> you want to have techsupport (and that means a real SLA and an > >> escalation path up to the engineering, if need be) behind you, > stable > >> and reliable, well tested code, but less of the advanced features. > > > > Thank you, this is what I thought. > > > > It's still a hard decision. If the stability and "testedness" of > RHEL is > > anything to go by, it's not reassuring at all (although it may be > better > > than Fedora, I don't know), although I must say that RedHat > support is > > helpful at times. > > > > Thanks again, I think I know enough :-) > > Or not ;-) > > Would it be possible (and doable) to migrate from oVirt to RHEV? > > If we start out with oVirt, but after some time we decide that RHEV > would be a better fit after all, would it be possible to hook up > existing oVirt/VDSM hosts to a RHEV engine, or am I thinking way too > simple now? > > Cheers, > Martijn. > > > > > > > > >> > >> > >> On Thu, Feb 6, 2014 at 8:06 AM, Martijn Grendelman > >> <martijn.grendelman(a)isaac.nl > <mailto:martijn.grendelman@isaac.nl> > <mailto:martijn.grendelman@isaac.nl > <mailto:martijn.grendelman@isaac.nl>>> wrote: > >> > >> Hi, > >> > >> This may be the wrong place to ask, but I'm looking for > input to form an > >> opinion on an "oVirt or RHEV" question within my company. > >> > >> I have been running oVirt for about 5 months now, and I'm quite > >> comfortable with its features and maintenance procedures. We > are now > >> planning to build a private virtualization cluster for > hosting clients' > >> applications as well as our own. Some people in the company are > >> questioning whether we should buy RHEV, but at this point, I > can't see > >> the benefits. > >> > >> Can anyone on this list shed a light on when RHEV might be a > better > >> choice than oVirt? What are the benefits? The trade-offs? > >> > >> I am looking for pragmatic, real-world things, not marketing > mumbo > >> jumbo. That, I can get from redhat.com <http://redhat.com> > <http://redhat.com> ;-) > >> > >> Best regards, > >> Martijn. > >> _______________________________________________ > >> Users mailing list > >> Users(a)ovirt.org <mailto:Users@ovirt.org> <mailto:Users@ovirt.org > <mailto:Users@ovirt.org>> > >> http://lists.ovirt.org/mailman/listinfo/users > >> > >> > > _______________________________________________ > > Users mailing list > > Users(a)ovirt.org <mailto:Users@ovirt.org> > > http://lists.ovirt.org/mailman/listinfo/users > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org <mailto:Users@ovirt.org> > http://lists.ovirt.org/mailman/listinfo/users > > > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users

Hi, On 02/06/2014 05:18 PM, Martijn Grendelman wrote: > Would it be possible (and doable) to migrate from oVirt to RHEV? > > If we start out with oVirt, but after some time we decide that RHEV > would be a better fit after all, would it be possible to hook up > existing oVirt/VDSM hosts to a RHEV engine, or am I thinking way too > simple now? My understanding is that you can manage oVirt Node with RHEV-M. That isn't a long term solution, but it allows you to: - Point RHEV-M at the oVirt export domains - Shut down oVirt Engine - Provision some RHEV-H hypervisors - Live migrate workloads from oVirt Node to RHEV-H - Shut down oVirt Nodes and move to RHEV-H when they're empty I think that someone from the oVirt/RHEV team would have to validate this approach, but it seems to me that this should work. Cheers, Dave.