and I am using Luminous -----Original Message----- From: ceph-users-bounces@xxxxxxx <ceph-users-bounces@xxxxxxx> On Behalf Of Tommy Sway Sent: Friday, October 22, 2021 7:49 PM To: 'Peter Lieven' <pl@xxxxxxx> Cc: 'Etienne Menguy' <etienne.menguy@xxxxxxxx>; ceph-users@xxxxxxx Subject: Re: Can CEPH RBD devices be assigned to virtual machines in pre-allocation mode? Yes, I am using qemu. And what I need to config to enable it ? -----Original Message----- From: Peter Lieven <pl@xxxxxxx> Sent: Friday, October 22, 2021 5:27 PM To: Tommy Sway <sz_cuitao@xxxxxxx> Cc: Etienne Menguy <etienne.menguy@xxxxxxxx>; ceph-users@xxxxxxx; Ilya Dryomov <idryomov@xxxxxxxxx> Subject: Re: Re: Can CEPH RBD devices be assigned to virtual machines in pre-allocation mode? > Am 22.10.2021 um 11:12 schrieb Tommy Sway <sz_cuitao@xxxxxxx>: > > Even hypervisor support is useless if ceph itself does not support it. Thick provisioning is supported from Octopus onwards. If you are using Qemu I can look into adding support for preprovisioning in the Qemu driver. Peter > > > > -----Original Message----- > From: ceph-users-bounces@xxxxxxx <ceph-users-bounces@xxxxxxx> On > Behalf Of Etienne Menguy > Sent: Friday, October 22, 2021 3:55 PM > To: ceph-users@xxxxxxx > Subject: Re: Can CEPH RBD devices be assigned to virtual machines in pre-allocation mode? > > Hi, > > You mean pre allocating space of an rbd image? As far as I know it’s not possible on ceph side. > Maybe your hypervisor allows it. > > - > Etienne Menguy > etienne.menguy@xxxxxxxx > > > >> On 22 Oct 2021, at 03:58, tommy sway <sz_cuitao@xxxxxxx> wrote: >> >> anyone can help me? >> >> >> On 10/21/2021 16:39, Tommy Sway wrote: >> Thanks. >> >> >> >> _______________________________________________ >> ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an >> email to ceph-users-leave@xxxxxxx >> _______________________________________________ >> ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an >> email to ceph-users-leave@xxxxxxx > > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an > email to ceph-users-leave@xxxxxxx > > > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an > email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx