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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