CEPH: question on journal placement

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Hello

newbie on CEPH here.....I do have three lab servers with CEPH. Each server got two 2 x 3TB SATA disks. Up to now I run 2 OSD per server and partitioned the 2 disks in to 4 partitions and had 2 OSD split over the 4 partitions. 1 Disk = 1 OSD = 2 partitions (data and journal).

Now I started to think about it and thought that it would maybe more wise to setup like this:

1 server = 2 Disks = 1 OSD (1 Disk Data, 1 Disk Journal).

What is the general recommendation ?

My setup works, however I feel that performance is not there where it should be.

thanks for any opinion

marco

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