Luca many thanks! that was fast and good! one last thing, how do I migrate to the new data domain? I use oVirt version 4.2.0 Thanks again!
On Thu, Mar 8, 2018 at 1:23 PM, Luca 'remix_tj' Lorenzetto < [email protected]> wrote: > Hello Maoz, > > i'm serving more than 300 vms in fc setup (and growing). > > On Thu, Mar 8, 2018 at 12:16 PM, maoz zadok <[email protected]> wrote: > > Hello All, > > I connected existing data center with NFS storage domain to a new > > Fiber-Channel storage domain according to the following guide, and I have > > three questions. > > https://www.ovirt.org/documentation/install-guide/ > chap-Configuring_Storage/ > > > > 1. why does the storage domain asks me to "Use Host"? > > Because there are some operations (lvm initialization & so on) to be > done while setting up the volumes on FC storage. These operations will > be performed by the given host > > > > > does it mean that if this host is down there is no access to the FC > storage > > or the next available host elected to manage the FC storage? > > No, storage is mapped by all the hosts and accessed directly > > > does it mean that all the traffic to my storage is routed via the > selected > > host? > > Absolutely no! > > > what is the best practice, do I need to split the workload to other > hosts as > > well by letting each host manage one small LUN instead of letting one > host > > manage all LUNs or one big LUN? > > I supposte that your question is related to the way that FC is > managed. Since every host sees all the drives, there question is no > more appropriate. > > > > > > 2. is it possible to set the newly created fiber-channel storage(data > > domain) as master? > > IIRC if you set to maintenance the existing master, another one will > be selected. > > > > > 3. can I easily migrate all VM disks to the FC storage instead of the > NFS? > > > > Sure, nfs storage domain or fc storage domain doesn't make difference > in terms of interaction. You can move disks from one to the other > without issues. > > Luca > > -- > "E' assurdo impiegare gli uomini di intelligenza eccellente per fare > calcoli che potrebbero essere affidati a chiunque se si usassero delle > macchine" > Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716) > > "Internet è la più grande biblioteca del mondo. > Ma il problema è che i libri sono tutti sparsi sul pavimento" > John Allen Paulos, Matematico (1945-vivente) > > Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , < > [email protected]> >
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