On 21.09.20 14:29, Kees Bakker wrote: > Being new to CEPH, I need some advice how to setup a cluster. > Given a node that has multiple disks, should I create one OSD for > all disks, or is it better to have one OSD per disk. The general rule is one OSD per disk. There may be an exception with very fast devices like NVMe where one OSD is not able to fully use the available IO bandwidth. NVMes can have two OSDs per device. But you would not create one OSD over multiple devices. Regards -- Robert Sander Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin https://www.heinlein-support.de Tel: 030 / 405051-43 Fax: 030 / 405051-19 Amtsgericht Berlin-Charlottenburg - HRB 93818 B Geschäftsführer: Peer Heinlein - Sitz: Berlin
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