Re: [ceph-users] replica questions

2017-03-03 Thread Vy Nguyen Tan
ditional replica, and that would improve the > recovery and read performance. > > > > Cheers, > > Maxime > > > > *From: *ceph-users <ceph-users-boun...@lists.ceph.com> on behalf of > Henrik Korkuc <li...@kirneh.eu> > *Date: *Friday 3 March 2017 11:35 &

Re: [ceph-users] replica questions

2017-03-03 Thread Maxime Guyot
improve the recovery and read performance. Cheers, Maxime From: ceph-users <ceph-users-boun...@lists.ceph.com> on behalf of Henrik Korkuc <li...@kirneh.eu> Date: Friday 3 March 2017 11:35 To: "ceph-users@lists.ceph.com" <ceph-users@lists.ceph.com> Subject: Re: [c

Re: [ceph-users] replica questions

2017-03-03 Thread Henrik Korkuc
On 17-03-03 12:30, Matteo Dacrema wrote: Hi All, I’ve a production cluster made of 8 nodes, 166 OSDs and 4 Journal SSD every 5 OSDs with replica 2 for a total RAW space of 150 TB. I’ve few question about it: * It’s critical to have replica 2? Why? Replica size 3 is highly recommended. I

[ceph-users] replica questions

2017-03-03 Thread Matteo Dacrema
Hi All, I’ve a production cluster made of 8 nodes, 166 OSDs and 4 Journal SSD every 5 OSDs with replica 2 for a total RAW space of 150 TB. I’ve few question about it: It’s critical to have replica 2? Why? Does replica 3 makes recovery faster? Does replica 3 makes rebalancing and recovery less