Hello, in our preset Ceph cluster we used to have 12 HDD OSDs per host. All OSDs shared a common SSD for journaling. The SSD was used as root device and the 12 journals were files in the /usr/share directory, like this: OSD 1 - data /dev/sda - journal /usr/share/sda OSD 2 - data /dev/sdb - journal /usr/share/sdb ... We now want to migrate to Bluestore and continue to use this approach. I tried to use "ceph-deploy osd prepare test04:sdc --bluestore --block-db /var/local/sdc-block --block-wal /var/local/sdc-wal" to setup an OSD which essentially works. However I'm wondering is this correct at all. And how can I make sure that the sdc-block and sdc-wal to not fill up the SSD disk. Is there any option to limit the file size and what are the recommended value of such an option? Thank you Meike _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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