
Hello, Though I read some surveys about this, I'd rather directly ask the oVirt community this question, and especially to people using it as a production cluster : as an average, how many VM are running on each of your hosts? -- Nicolas ECARNOT

On Oct 19, 2016 5:56 PM, "Nicolas Ecarnot" <nicolas@ecarnot.net> wrote:
Hello,
Though I read some surveys about this, I'd rather directly ask the oVirt
community this question, and especially to people using it as a production cluster : as an average, how many VM are running on each of your hosts? The host with 1TB RAM or 64GB? There is no meaningful average for two reasons : - Host specs (example above) - some believe in scale up (fewer but stronger hosts), some believe in scale out (more hosts, not as high end). - Workload specs - Virtual desktop VMs with 2-8GB of RAM, or large in-memory 512GB 'monster VMs'? We see both. So it can range from very few to hundreds. Y.
-- Nicolas ECARNOT _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users

Le 19/10/2016 à 19:49, Yaniv Kaul a écrit :
On Oct 19, 2016 5:56 PM, "Nicolas Ecarnot" <nicolas@ecarnot.net <mailto:nicolas@ecarnot.net>> wrote:
Hello,
Hello Yaniv,
Though I read some surveys about this, I'd rather directly ask the
oVirt community this question, and especially to people using it as a production cluster : as an average, how many VM are running on each of your hosts?
The host with 1TB RAM or 64GB?
There is no meaningful average for two reasons : - Host specs (example above) - some believe in scale up (fewer but stronger hosts), some believe in scale out (more hosts, not as high end).
*This* is mainly the point I am expecting to get some stats. Literature about competitor's products are commonly describing few and strong hosts scenario, but I'd like to know how it goes in oVirt's world -- Nicolas ECARNOT

On 19-10-2016 22:50, Nicolas Ecarnot wrote:
Le 19/10/2016 à 19:49, Yaniv Kaul a écrit :
On Oct 19, 2016 5:56 PM, "Nicolas Ecarnot" <nicolas@ecarnot.net <mailto:nicolas@ecarnot.net>> wrote:
Hello,
Hello Yaniv,
Though I read some surveys about this, I'd rather directly ask the
oVirt community this question, and especially to people using it as a production cluster : as an average, how many VM are running on each of your hosts?
The host with 1TB RAM or 64GB?
There is no meaningful average for two reasons : - Host specs (example above) - some believe in scale up (fewer but stronger hosts), some believe in scale out (more hosts, not as high end).
*This* is mainly the point I am expecting to get some stats. Literature about competitor's products are commonly describing few and strong hosts scenario, but I'd like to know how it goes in oVirt's world
We've got around 100VMs with 175vCPUs running on 48pCPUs spread over 4 hosts. At the moment the storage layer is the limiting factor. VMs are a mix of postgres database servers wildfly application servers with geoserver and then some assorted infrastructure stuff and a couple of Windows servers. Regards, Joop
participants (3)
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Joop
-
Nicolas Ecarnot
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Yaniv Kaul