If I'm understanding you correctly, you want to have 2 different roots that pools can be made using. The first being entirely SSD storage. The second being HDD Storage with an SSD cache tier on top of it.
https://www.sebastien-han.fr/blog/2014/08/25/ceph-mix-sata-and-ssd-within-the-same-box/ The above guide explains how to set up the HDD root and the SSD root. After that all you do is create a pool on the HDD root for RBDs, a pool on the SSD root for a cache tier to use with the HDD pool, and then a a pool on the SSD root for RBDs. There aren't actually a lot of use cases out there where using an SSD cache tier on top of an HDD RBD pool is what you really want. I would recommend testing this thoroughly and comparing your performance to just a standard HDD pool for RBDs without a cache tier. On Thu, Aug 17, 2017 at 3:18 PM Oscar Segarra <oscar.sega...@gmail.com> wrote: > Hi, > > Sorry guys, during theese days I'm asking a lot about how to distribute my > data. > > I have two kinds of VM: > > 1.- Management VMs (linux) --> Full SSD dedicated disks > 2.- Windows VM --> SSD + HHD (with tiering). > > I'm working on installing two clusters on the same host but I'm > encountering lots of problems as named clusters look not be fully supported. > > In the same cluster, Is there any way to distribute my VMs as I like? > > Thanks a lot! > > Ó. > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
_______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
