Re: [ceph-users] 'ceph-deploy osd create' and filestore OSDs

2018-12-04 Thread Matthew Pounsett
On Tue, 4 Dec 2018 at 18:31, Vasu Kulkarni wrote: > >> Is there a way we can easily set that up without trying to use outdated >> tools? Presumably if ceph still supports this as the docs claim, there's a >> way to get it done without using ceph-deploy? >> > It might be more involved if you are

Re: [ceph-users] 'ceph-deploy osd create' and filestore OSDs

2018-12-04 Thread Matthew Pounsett
On Tue, 4 Dec 2018 at 18:12, Vasu Kulkarni wrote: > >> As explained above, we can't just create smaller raw devices. Yes, these >> are VMs but they're meant to replicate physical servers that will be used >> in production, where no such volumes are available. >> > In that case you will have to

Re: [ceph-users] 'ceph-deploy osd create' and filestore OSDs

2018-12-04 Thread Matthew Pounsett
On Tue, 4 Dec 2018 at 18:04, Vasu Kulkarni wrote: > > > On Tue, Dec 4, 2018 at 2:42 PM Matthew Pounsett > wrote: > >> you are using HOST:DIR option which is bit old and I think it was >> supported till jewel, since you are using 2.0.1 you should be using only &

Re: [ceph-users] 'ceph-deploy osd create' and filestore OSDs

2018-12-04 Thread Matthew Pounsett
Going to take another stab at this... We have a development environment–made up of VMs–for developing and testing the deployment tools for a particular service that depends on cephfs for sharing state data between hosts. In production we will be using filestore OSDs because of the very low

[ceph-users] 'ceph-deploy osd create' and filestore OSDs

2018-12-03 Thread Matthew Pounsett
I'm in the process of updating some development VMs that use ceph-fs. It looks like recent updates to ceph have deprecated the 'ceph-deploy osd prepare' and 'activate' commands in favour of the previously-optional 'create' command. We're using filestore OSDs on these VMs, but I can't seem to

Re: [ceph-users] Applicability and migration path

2018-08-10 Thread Matthew Pounsett
On 10 August 2018 at 07:09, Janne Johansson wrote: > > As opposed to the previous setup, this will add some inter-host traffic > aswell, each write to the primary PG will then in turn cause that host to > replicate it > again over the network to X other hosts to form the required amount of >

Re: [ceph-users] Applicability and migration path

2018-08-10 Thread Matthew Pounsett
Wow.. thanks for such a detailed reply! On 10 August 2018 at 07:08, Burkhard Linke < burkhard.li...@computational.bio.uni-giessen.de> wrote: > The default ceph setup uses 3 replicates on three different hosts, so you > need at least three hosts for a ceph cluster. Other configurations with a >

[ceph-users] Applicability and migration path

2018-08-09 Thread Matthew Pounsett
I'm looking for some high level information about the usefulness of ceph to a particular use case and, assuming it's considered a good choice, whether the migration path I have in mind has any particular gotchas that I should be on the look out for. The current situation is that I've inherited