Aaron, If I may suggest, we should start a page on the wiki with hardware configurations people have successfully deployed on. This is a very daunting area for someone who is contemplating an installation.
There is already a few hints on the wiki about NC State's hardware (but perhaps a bit more detail would be useful). It would be good if more people listed their diverse configurations in detail. Right now I have an installation on a modest desktop system (mostly to cement my understanding after last summer's bootcamp). I can put that up. I will also be doing a real deployment soon and can put that up too as I have completed it. Mark On Fri, Apr 27, 2012 at 8:42 AM, Aaron Peeler <fapee...@ncsu.edu> wrote: > Hi Emir, > > I'll try to answer, but hopefully Andy will chime in to confirm. > > In the upcoming release, the copying vmdk for long-term reservations > has been fixed. It's using snapshots to achieve. Resulting in faster > boot time. > > On the vms per host question. This is very good question. So far your > 100 vms per host is the highest I've heard about. As your aware, the > number of vms and end-user performance is going to depend on the > underlying hardware (host mem&CPU, network, and storage). > > It would be good as a community for us to share hardware > recommendations on what is working well at their own site. We have a > mix of hardware at NCSU, I'll write up some details and send that out > in a separate thread soon. > > > Aaron > > > > On Thu, Apr 26, 2012 at 3:56 PM, Emir Imamagic <eimam...@srce.hr> wrote: >> Hello, >> >> We've noticed that in case of long term reservations VCL copies the virtual >> disk of image on datastore. In case of images with many subimages (>20) we >> experienced problems with this copying. VCL would initiate multiple >> vmkfstools commands, ESXi server would get overloaded and start killing >> vmkfstools processes (messages were indicating lack of memory). Is there any >> way to bypass this behavior? >> Is this copying really needed? Is it possibly to switch it off in a clean >> manner? >> >> Another question is - how many VMs can vcld handle per a single VM host >> (VMware ESXi 4.1)? >> On our setup we managed to start 100 VMs on a single VMware host and it was >> still working fine. VM host has 24 cores and 256GB RAM. >> >> Thanks in advance >> -- >> Emir Imamagic >> SRCE - University of Zagreb University Computing Centre, www.srce.unizg.hr >> emir.imama...@srce.hr, tel: +385 1 616 5809, fax: +385 1 616 5559 > > > > -- > Aaron Peeler > Program Manager > Virtual Computing Lab > NC State University > > All electronic mail messages in connection with State business which > are sent to or received by this account are subject to the NC Public > Records Law and may be disclosed to third parties. -- Mark Gardner --
