Re: [ceph-users] Multi Level Tiering

2014-09-20 Thread Nick Fisk
Excellent thank you for your response Sage Weil sweil@... writes: Eventually, yes, but right now only 2 levels are supported. There is a blueprint, see http://wiki.ceph.com/Planning/Blueprints/Emperor/osd%3A_tiering%3A_objec t_redirects sage

[ceph-users] Merging two active ceph clusters: suggestions needed

2014-09-20 Thread Robin H. Johnson
For a variety of reasons, none good anymore, we have two separate Ceph clusters. I would like to merge them onto the newer hardware, with as little downtime and data loss as possible; then discard the old hardware. Cluster A (2 hosts): - 3TB of S3 content, 100k files, file mtimes important -

Re: [ceph-users] Newbie Ceph Design Questions

2014-09-20 Thread Christian Balzer
Hello, On Fri, 19 Sep 2014 18:29:02 -0700 Craig Lewis wrote: I'm personally interested in running Ceph on some RAID-Z2 volumes with ZILs. XFS feels really dates after using ZFS. I need to check the progress, but I'm thinking of reformatting one node once Giant comes out. I'm looking

Re: [ceph-users] Merging two active ceph clusters: suggestions needed

2014-09-20 Thread Christian Balzer
On Sun, 21 Sep 2014 05:15:32 + Robin H. Johnson wrote: For a variety of reasons, none good anymore, we have two separate Ceph clusters. I would like to merge them onto the newer hardware, with as little downtime and data loss as possible; then discard the old hardware. Cluster A (2