Re: OSD network failure

2012-11-19 Thread Gregory Farnum
On Fri, Nov 16, 2012 at 5:56 PM, Josh Durgin wrote: > On 11/15/2012 01:51 AM, Gandalf Corvotempesta wrote: >> >> 2012/11/15 Josh Durgin : >>> >>> So basically you'd only need a single nic per storage node. Multiple >>> can be useful to separate frontend and backend traffic, but ceph >>> is designe

Re: OSD network failure

2012-11-16 Thread Josh Durgin
On 11/15/2012 01:51 AM, Gandalf Corvotempesta wrote: 2012/11/15 Josh Durgin : So basically you'd only need a single nic per storage node. Multiple can be useful to separate frontend and backend traffic, but ceph is designed to maintain strong consistency when failures occur. Probably i've not

Re: OSD network failure

2012-11-15 Thread Josh Durgin
On 11/13/2012 06:15 AM, Gandalf Corvotempesta wrote: Hi, what happens in case of OSD network failure? Is ceph smart enough to isolate OSDs not synced? Should I use LACP in ODS network or a single 10GBe per server should be ok? LACP will need stackable switches and much more hardware investment