Hi there, we deployed a ceph cluster yesterday and configured 2 pools. We have 3 host machines and on each we have 2 Raid arrays. one with SSD's and one with SATA drives. We were able to get the „primary“ pool running only on the SATA drives and the „secondary“ pool running distinctly on the SSD’s. So what we want is to use the „secondary“ pool on the SSD Raids to run the secondary Cloudstack storage. What is actually the best practice to get this working for production environment. Are we able to setup a cephfs on the SSD pool and mount this as secondary storage? Is it more recommended to split the 3 hosts SSD Raids and mount them separately with nfs? We are a little bit confused at this stage.
Another unanswered question is, how we can calculate the size we will need for secondary storage. Actually we have 3*2 TB for secondary on SSD drives (RAID 0) and 3*7.1 TB for primary on Sata.(RAID 10). Please can anybody explain. Best Regards, Guido Winger-Media IT GmBH Geschäftsführer: Guido Winger Parkberg 21 22397 Hamburg (Germany) [email protected] Skype: gwinger Tel: ++49 (0)4053262635 Mobil: ++49 (0)176 814884704 Web:winger-media.de <http://winger-media.de/> <http://www.xing.com/profile/Guido_Winger>
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