FTW, attaching physical local drives to VMs also works well. Disks -> New -> Direct LUN -> Storage Type: Fibre Channel -> Use Host… Your disk doesn't have to be Fibre Channel. Just any direct attached disk works well.
-----Original Message----- From: Yedidyah Bar David <d...@redhat.com> Date: Monday 31 October 2016 at 17:13 To: Pavel Gashev <p...@acronis.com> Cc: Mike <maill...@probie.nl>, "users@ovirt.org" <users@ovirt.org> Subject: Re: [ovirt-users] Local and Shared storage in same datacenter On Mon, Oct 31, 2016 at 4:02 PM, Pavel Gashev <p...@acronis.com> wrote: > Mike, > > As workaround it's not very hard to create a mount command wrapper that > converts local NFS mounts to bind-mounts. The propper way I think is to patch > the VDSM service to handle local NFS mounts. In result, a NFS storage will > work like a local storage if it's local. Or write your own hook [1] that will cleanly do whatever you want without patching anything. Oh, I see we already have one there [2]! I wonder how no-one mentioned it so far. Are there known issues with it? [1] http://www.ovirt.org/develop/developer-guide/vdsm/hooks/ [2] http://www.ovirt.org/develop/developer-guide/vdsm/hook/vmdisk/ > > -----Original Message----- > From: Mike <maill...@probie.nl> > Date: Monday 31 October 2016 at 16:33 > To: Pavel Gashev <p...@acronis.com>, "users@ovirt.org" <users@ovirt.org> > Subject: Re: [ovirt-users] Local and Shared storage in same datacenter > > Hi Pavel, > > Op 31-10-2016 om 11:22 schreef Pavel Gashev: >> Mike, >> >> You can share and use your local storage via NFS. So all your storages are >> shared, and can be used in the same datacenter. > I installed a nfs server on the hypervisor and am using it that way at > the moment. > It feels 'wrong' but it seems to work okay and it is fast as far as I > can tell. > Still would like to see another solution without the added latency of > nfs and be able to utilize directio, etc. >> >> -----Original Message----- >> From: <users-boun...@ovirt.org> on behalf of "Mike (maillinglists)" >> <maill...@probie.nl> >> Date: Sunday 30 October 2016 at 13:02 >> To: "users@ovirt.org" <users@ovirt.org> >> Subject: [ovirt-users] Local and Shared storage in same datacenter >> >> Hi guys, >> >> There have been a few related questions already that I could find, but I >> did not find anything relating to my specific use case. >> >> Currently it is not possible to mix local storage with shared storage in >> the same datacenter. >> The reason seems to be because of the storage pool manager (SPM). >> This is a role in the datacenter provided to one specific host. >> >> While I understand that this makes having local storage impossible, I >> believe there is a use case to have local storage in a shared storage >> datacenter. >> Consider the following: >> I have a few applications that require 1 milli second latency and at >> most 2 milli second. >> That is not consistenly achievable with shared storage, to that end I >> added flash storage to a few hypervisors. >> About 5% of my servers require this and are not that resource hungry to >> require a dedicated physical server. >> That same 5% also has no requirement to be migrated if a host fails. >> >> So in short I have 5 heavy hosts running ovirt with a shared storage >> domain on NFS for 95% of my servers. >> All running fine, but I am now unable to run my remaining 5%. >> >> To finish up my summary I have been testing various virtualization >> technologies, like VmWare and Hyper-V. >> They allow such configurations as I mentioned. >> >> I already had some chat on irc with various guys and they suggested that >> I put this on the mailing list, so here goes. >> >> My suggestion would be to evoluate from SPM to SDM. >> SDM stands for Storage Domain Manager. >> This would create the possibility to have all nodes in the datacenter >> participate in the storage handling. >> A extra benefit would be that local storage could be added. >> >> What do you think? >> >> Thanks for reading. >> >> Kind regards, >> Mike van Goor >> _______________________________________________ >> Users mailing list >> Users@ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> >> > > > > _______________________________________________ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users -- Didi _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users