Hi all, Is there any way to use bcache in an already configured Ceph cluster? I've both OSD and Journals inside the same OSD daemon, and I want to try bcache in front of the OSD daemon and also move in the bcache device the journal, so for example I got:
/dev/sdc --> SSD disk /dev/sdc1 --> 1st partition GPT for Journal (5G) /dev/sdc2 --> 2nd partition GPT for Journal (5G) /dev/sdc3 --> 3rd partition GPT for Journal (5G) /dev/sdc4 --> partition GPT for bcache device (200G) Then relate */dev/sdf1*, */dev/sdg1 *and* /dev/sdh1* all *OSD daemons 2TB each in size*, to each of the bcache partitions on the */dev/sdc* device. Is possible or I will need to 'format' all the devices in order to do this kind of procedure? any ideas? Or is any other better approach to this? Thanks in advance, Regards, *German*
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