Server 2012 Datacenter Upgrade to Server 2012 R2 Datacenter

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good day everyone,

ok dilemma have upgrade 1 of our 2012 datacenter servers w/hyper-v hosting 2012 r2. part troubles me have 3 production vm's on server, have migrate these off host controller before conduct upgrade? can shut them down , conduct upgrade? risk? have backups of vm's, not have server setup handle live migration full, make work if had move them before upgrade.

in terms of whether can in place upgrade, yes can. we've done of our formerly 2012 datacentre servers, , upgraded them r2 with vms remaining on there , worked fine. main issue while upgrade taking place on host server, vms need shutdown (or optionally put saved state), long have long enough maintenance window allow should fine.

if maintenance window issue or of vms you'd want live migrate them server can continue running while upgrade done. unfortunately it's been while since did our upgrades can't remember how long upgrade process took.

fortunately 2012 vm's compatible 2012 r2 (but not reverse), after upgrade vms power , work before. said, once complete you'll want upgrade integration services on guests gain benefits of r2 host.



Windows Server  >  Hyper-V



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