Re: [ceph-users] best practice of installing ceph(large-scale deployment)

2014-08-11 Thread Robert van Leeuwen
> SSD journals will really help to get the full IOPS out of each disk. > Make sure the SSD has enough write speed to match the OSDs using it. > ie, if your SSDs can write 400MB/s, and the OSDs can write 100MB/s, then you > only want 4 OSDs sharing an SSD for journals. > I don't think looking at r

Re: [ceph-users] best practice of installing ceph(large-scale deployment)

2014-08-11 Thread Craig Lewis
Take a look at Cern's "Scaling Ceph at Cern" slides , as well as Inktank's Hardware Configuration Guide . You need at least 3 MONs for production. You might want m

[ceph-users] best practice of installing ceph(large-scale deployment)

2014-08-11 Thread yuelongguang
hi,all i am using ceph-rbd with openstack as its backends storage. is there a best practice? 1. it needs at least how many osds,mons, and their proportion ? 2. how you deploy the network?public , cluster network... 3.as for performance, what do you do? journal.. 4. anything it promotes