[ovirt-users] Where to add NFS Data Storage

[Taste-Of-IT]

Hello Joop,

ans sorry for my late reply. Indeed the docs of red hat are very good, 
if you found the right one. i worke a few weeks with oVirt and i can 
make all run, but for my personal needs, i will understand the system 
and what is made where and why. Thats why i asked a lot question about 
deeper sense...There are also lots of howtos in the net which didnt work 
any more or for diffent cases or systems.

So as i first startet with all-in-one, someone say that this will not 
longer supported at 4.x ok, so i test now the hosted-engine, but its a 
bit tricky to setup if you new and some changes came with new releases.

i actually do more than 10 installation, and learned each time i play 
with options in setup. I searched the docs too, but some things i didnt 
find. My problem is still the handling of nfs export paths and activate 
them in ovirt later.
one of my experience is: 1 path for data, 1 path for iso and all as nfs 
export, which work well. if iam in ovirt i cant activate the data path, 
while the wizard says it is allready in use.
so next installation i created same 2 paths plus one for engine which i 
take at installation for the engine. if i later in ovirt add the data 
nfs path, i suddenly see both data nfs domains, engine and data. and 
thats what i not understand?

For understanding, the storage cames though the Cluster and will used by 
the hosts, right? Or have i add each storage over the system, which will 
used in each cluster by the hosts? Or depend its on the concept of using 
the storage, e.g. storage on host or extra storage in the net?

Greetings

Am 2016-03-22 20:49, schrieb Joop:
> On 22-3-2016 17:39, Taste-Of-IT wrote:
>> Sorry for write again, but its still unclear how to add the nfs
>> storage and where.
>> 
>> - as far as i understand the engine is in own vm what is neccessary
>> for ha with 2 ore most host.
>> - the e.g. nfs storage could be external on own server and will
>> connected in engine-vm setup
>> 
>> - the host itself needs a storage path at installation process too,
>> which one? local or external nfs too? what will hosted there? the
>> engine-vm right?
>> 
>> - so if i only have one host with nfs storage on itself, i have to
>> create 2 nfs paths, one for the host with engine-vm and one for the
>> engine-vm for nfs storage right?
>> - so what is the storage on engine for, all vms?
>> 
> Don't know if you just want to play around with it for personal use or
> if its going to be using in a production environment. Doesn't matter
> whether its just one host or more than one.
> If the first than try to read up on ovirt or use the redhat Rhev docs 
> on
> the redhat site. They are quite nice in explaining the concepts behind
> oVirt.
> If its the latter than <advert-mode>I have been using/installing oVirt
> for quite some time, since the 3.0 times, and offer support on it for
> those in need</advert-mode>
> 
> I have no problems trying to help off or on list and maybe its just
> seeing how all fits together that will make you understand how things
> work. Hosted-engine is a 'warped' concept but it really works although
> there are certain pitfalls to be aware of.
> 
> Regards,
> 
> Joop