First of all, sorry for the naive question, but I have not been able
to find good guidance on the docs.
I come from the VMWare environment, now I am starting to migrate
some workload from VMWare to oVirt (v4.1.4 , CentOS 7.3 hosts).
In VMWare I am used to have one datacenter, several host clusters,
and a bunch of iSCSI Datastores, but we do not map every iSCSI
LUN/datastore to every host. Actually we used to do that, but we hit
limits on the number of iSCSI paths with our infrastructure.
Rather than that, we have groups of LUNs/Datastores mapped to the
ESXi hosts which form a given VMware cluster. Then we have a couple of
datastores mapped to every ESXi in the vmware datacenter, and we use
those to store the ISO images and as storage that we use when we need to
migrate VMs between clusters for some reason.
Given the role of the Master data domain and the SPM in oVIrt it is
my understanding that I cannot replicate this kind of setup in oVirt: a
data domain in an oVirt Data Center must be available to every Host on
the Data Center: Am I right?
So, our current setup is still small, but I am concerned that as it
grows, if I stay with one Datacenter, several clusters and a group of
data domains mapped to every host I may run again into problems with the
number of iSCSI paths (the limit in VMWare was around 1024), it is easy
to reach that limit as it is (number of hosts) * (number of LUNs) *
(number of paths/LUN).
If I split my setup in several datacenters controlled by a single
oVirt-engine in order to keep the number of iSCSI paths reasonable. Can
I manually migrate VMs between Datacenters? I assume that in order to do
that, those datacenters will need to share some data domain , Can this
be done? Maybe with NFS?
Thanks for your help!
Eduardo Mayoral Jimeno (emayoral(a)arsys.es)
Administrador de sistemas. Departamento de Plataformas. Arsys internet.
+34 941 620 145 ext. 5153
I am currently only Ambassador of Fedora Project in Yangon, Myanmar.
I want to contribute oVirt by spreading about oVirt in my region.
I am also teaching about oVirt here in my region.
How should I approach to become officially recognized something like "oVirt
Myanmar Community" ?
Yan Naing Myint
Server & Network Engineer
Cyber Wings Co., Ltd
I have a question related to Ovirt.
Sorry it's in Japanese. I did a quick translation as below (not sure if
So as you can see, after choose option for
* Data center
* Domain function/feature
* Storage Type
Then i didn't see any option for "Running host/Host in use". Even though i
did create some hosts in dhcp48.
Has any of you guys seen this before?
We just upgraded to 220.127.116.11 and I see there are 2 news that I'd like to
ask if they might be changed:
1) Up until now the "User admin@internal logged in." event didn't show
up, which was a big plus to us because we have many scripts that connect
to oVirt to do some tasks. As of this version I see this event is back
:-( Is there a way to disable it so the events list won't get flooded of
these kind of events?
2) The events list is now ordered top-down. Personally I consider this
kind of unintuitive and would like to sort events as until now (more
recent events on top). Is there a way to do this?
right now I have updated an infra from 4.1.1 to 4.1.5.
OS is CentOS 7.3 on the 2 hypervisors and on the engine (a separate server)
and has remained that, because CentOS 7.4 not yet released, but coming soon.
Questions. When 7.4 released, will ot be some testing from oVirt guys to
confirm that I can:
- update OS of engine and hypervisors to 7.4 without any problem?
- update another cluster still in 4.1.3 and CentOS 7.3 to 4.1.5 and 7.4 in
or any guideline?
- suppose I have RH EL with oVirt does the same apply?
This last one below is more a question for support, but in case suggestions
are useful in advance:
I searched similar information for RHEV but it seems I was not able to
find, because RHEV 4.1 has been released before RH EL 7.4:
If I should start an evaluation of RHEV 4.1 and I decide to stay with plain
RHEL server and not RHV-H, should I force with rhsm to stay on 7.3 and
install latest 4.1 packages or can I directly start with 7.4 OS?
Is it true that there is a plan to not support plain RH EL hosts in the
future, but only RHV-H hosts or not?
Thanks in advance,