thanks for your all your advices. That's too bad the memory allocated for the zone hosting the qemu process cannot be adjusted, If I create for example a 510MB VM I don't see why the zone hosting the qemu process should get 1GB, I understand it needs some memory of its own to run though but in our case 1GB just seems... excessive :(
We currently uses kvm VMs mostly because we migrated our system from physical machines 1/2 years ago now and it was the most straightforward migration path, I tried to migrate some utilities VMs to zones and managed to have some running but it proved a challenge as we need a specific environment. I am keeping an eye on LX brand VMs but I have yet to really dig into it and see how fit it is for our needs, what are their current state, is it considered stable ? I see mention of it in the changelog but the last time I checked it was referenced as experimental. I will look into LX zones and adding more memory to these servers xD PS: it would be helpful to have the 1GB overhead mentioned in the manpage of vmadm for the memory attributes. On 8 July 2015 at 01:40, Coy Hile <[email protected]> wrote: > > > I believe that KVM is still required for RHEL7 or anything else that uses > systemd, too. > > > Sent via the Samsung GALAXY S® 5, an AT&T 4G LTE smartphone > > > -------- Original message -------- > From: Ian Collins <[email protected]> > Date: 07/07/2015 19:20 (GMT-05:00) > To: [email protected] > Subject: Re: [smartos-discuss] Useable RAM > > Schmurfy wrote: >> >>> Hi, >>> >>> I was wondering if there is a way to know how much memory I can use for >>> my VMs, until now I am almost blind and sometimes it work sometimes it >>> doesn't. >>> >>> Yesterday I tried to create 4 VMs with each 2.5 GB on a 16GB host and >>> the last one failed to provision, I had to reduce its memory to 2GB to make >>> it work, without that the VM was shown as runnning but was really not: >>> "vmadm info" hanged, no network up, "vmadm console "did nothing. >>> >>> In this case sometimes I see the provisioning of the VM failed (as shown >>> in vmadm list) and other times it appears to work but the VM is in a hald >>> dead state like above. >>> >>> We are a small company and we would really like to use as much as >>> possible our current hardware resources, that's why I am looking for a way >>> to estimate what ZFS and the host need/use. >>> >> >> Unless you are forced to deploy windows VMs, the best way to get the >> most from your hardware is to use native or LX brand zones. >> >> Zones are significantly lighter in their resource requirements, >> especially RAM. >> >> -- >> Ian. >> >> > > ------------------------------------------- smartos-discuss Archives: https://www.listbox.com/member/archive/184463/=now RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00 Modify Your Subscription: https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb Powered by Listbox: http://www.listbox.com
