On Wed, 22 Jun 2016, wido@xxxxxxxx wrote: > > Op 22 jun. 2016 om 07:56 heeft Michael Wyraz <michael@xxxxxxxx> het volgende geschreven: > > > > Hello, > > > > I have multiple ceph monitor nodes and one domain name that has an a > > record for each node. I use this record in my fstab, e.g.: > > > > mon.mycephcluster.com:6789:/ /backups/ ceph _netdev > > > > In /proc/mounts, I can see all IPs for mon.mycephcluster.com, e.g.: > > > > 1.1.1.1:6789,2.2.2.2:6789,2.2.2.2:6789:/ /backups ceph > > rw,relatime,acl 0 0 > > > > This works perfect and is a really good thing because it makes > > adding/removing nodes much more easy. What I'd like to know is if this > > is intended behaviour (in this case it should be documented in the > > manpage) or if this could have unexpected side effects. > > > > That is the intended behaviour and works as you describe. Nothing weird > about this, actually a cool feature of Ceph. Yes. You can also add multiple A (or AAAA) records to DNS so that your fstab line is simple (e.g., mycluster-mons.foo.com) and can be easily updated (via DNS) when your mons change. Same goes for the mon host = ... line in ceph.conf. sage -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
