Re: [ceph-users] How to distribute data

Hi, For VDI (Windows 10) use case... is there any document about the recommended configuration with rbd? Thanks a lot! 2017-08-18 15:40 GMT+02:00 Oscar Segarra : > Hi, > > Yes, you are right, the idea is cloning a snapshot taken from the base > image... > > And yes,

Re: [ceph-users] How to distribute data

Hi, Yes, you are right, the idea is cloning a snapshot taken from the base image... And yes, I'm working with the current RC of luminous. In this scenario: base image (raw format) + snapshot + snapshot clones (for end user Windows 10 vdi). Does tiering ssd+hdd may help? Thanks a lot El 18

Re: [ceph-users] How to distribute data

Do you mean a lot of snapshots or creating a lot of clones from a snapshot? I can agree to the pain of crating a lot of snapshots of rbds in ceph. I'm assuming that you mean to say that you will have a template rbd with a version snapshot that you clone each time you need to let someone log in. Is

Re: [ceph-users] How to distribute data

Hello, On Fri, 18 Aug 2017 03:31:56 +0200 Oscar Segarra wrote: > Hi Christian, > > Thanks a lot for helping... > > Have you read: > http://docs.ceph.com/docs/master/rbd/rbd-openstack/ > > So just from the perspective of qcow2, you seem to be doomed. > --> Sorry, I've talking about RAW +

Re: [ceph-users] How to distribute data

Hello, On Thu, 17 Aug 2017 23:56:49 +0200 Oscar Segarra wrote: > Hi David, > > Thanks a lot again for your quick answer... > > *The rules in the CRUSH map will always be followed. It is not possible > for Ceph to go against that and put data into a root that shouldn't have > it.* > --> I

Re: [ceph-users] How to distribute data

Thanks a lot David, for me is a little bit difficult to make some tests because I have to buy a hardware... and the price is different with cache ssd tier o without it. If anybody have experience with VDI/login storms... will be really welcome! Note: I have removed the ceph-user list because I

Re: [ceph-users] How to distribute data

The rules in the CRUSH map will always be followed. It is not possible for Ceph to go against that and put data into a root that shouldn't have it. The problem with a cache tier is that Ceph is going to need to promote and evict stuff all the time (not free). A lot of people that want to use

Re: [ceph-users] How to distribute data

If I'm understanding you correctly, you want to have 2 different roots that pools can be made using. The first being entirely SSD storage. The second being HDD Storage with an SSD cache tier on top of it. https://www.sebastien-han.fr/blog/2014/08/25/ceph-mix-sata-and-ssd-within-the-same-box/

[ceph-users] How to distribute data

Hi, Sorry guys, during theese days I'm asking a lot about how to distribute my data. I have two kinds of VM: 1.- Management VMs (linux) --> Full SSD dedicated disks 2.- Windows VM --> SSD + HHD (with tiering). I'm working on installing two clusters on the same host but I'm encountering lots of