Re: [ceph-users] Switch to replica 3

2017-11-20 Thread Matteo Dacrema
Ok, thank you guys The version is 10.2.10 Matteo > Il giorno 20 nov 2017, alle ore 23:15, Christian Balzer ha > scritto: > > On Mon, 20 Nov 2017 10:35:36 -0800 Chris Taylor wrote: > >> On 2017-11-20 3:39 am, Matteo Dacrema wrote: >>> Yes I mean the existing Cluster. >>> SSDs

Re: [ceph-users] Switch to replica 3

2017-11-20 Thread Christian Balzer
On Mon, 20 Nov 2017 10:35:36 -0800 Chris Taylor wrote: > On 2017-11-20 3:39 am, Matteo Dacrema wrote: > > Yes I mean the existing Cluster. > > SSDs are on a fully separate pool. > > Cluster is not busy during recovery and deep scrubs but I think it’s > > better to limit replication in some way

Re: [ceph-users] Switch to replica 3

2017-11-20 Thread Chris Taylor
On 2017-11-20 3:39 am, Matteo Dacrema wrote: Yes I mean the existing Cluster. SSDs are on a fully separate pool. Cluster is not busy during recovery and deep scrubs but I think it’s better to limit replication in some way when switching to replica 3. My question is to understand if I need to

Re: [ceph-users] Switch to replica 3

2017-11-20 Thread Matteo Dacrema
Yes I mean the existing Cluster. SSDs are on a fully separate pool. Cluster is not busy during recovery and deep scrubs but I think it’s better to limit replication in some way when switching to replica 3. My question is to understand if I need to set some options parameters to limit the impact

Re: [ceph-users] Switch to replica 3

2017-11-20 Thread Christian Balzer
Hello, On Mon, 20 Nov 2017 11:56:31 +0100 Matteo Dacrema wrote: > Hi, > > I need to switch a cluster of over 200 OSDs from replica 2 to replica 3 I presume this means the existing cluster and not adding 100 OSDs... > There are two different crush maps for HDD and SSDs also mapped to two >

Re: [ceph-users] Switch to replica 3

2017-11-20 Thread Wido den Hollander
> Op 20 november 2017 om 11:56 schreef Matteo Dacrema : > > > Hi, > > I need to switch a cluster of over 200 OSDs from replica 2 to replica 3 > There are two different crush maps for HDD and SSDs also mapped to two > different pools. > > Is there a best practice to use?

[ceph-users] Switch to replica 3

2017-11-20 Thread Matteo Dacrema
Hi, I need to switch a cluster of over 200 OSDs from replica 2 to replica 3 There are two different crush maps for HDD and SSDs also mapped to two different pools. Is there a best practice to use? Can this provoke troubles? Thank you Matteo ___