NFS over CEPH - best practice

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On 5/12/2014 4:52 AM, Andrei Mikhailovsky wrote:
> Leen,
>
> thanks for explaining things. I does make sense now.
>
> Unfortunately, it does look like this technology would not fulfill my
> requirements as I do need to have an ability to perform maintenance
> without shutting down vms.

I've no idea how much state you need to share for iscsi failover; with 
nfs you put the "cluster" ip address, the lock directories & the daemons 
on a heartbeat'ed pair of machines. With automount you don't need 
multiple active servers, you can do (much simpler) active-passive.

Dima




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