> J-P Methot <jpmethot@xxxxxxxxxx> hat am 15. Dezember 2014 um 16:05 > geschrieben: > I must admit, I have a bit of difficulty understanding your diagram. I had the illusion that a cache tier also has a journal but it has not. Sounds less complex now. But the XFS journals on the devices (as they are not 'inline') and the journals of ceph's osds - aren't these two different things? So I could save the xfs journal somewhere on the ssd (mkfs.xfs -l logdev=/dev/ssdX ...) and the journal of ceph also (osd journal = /dev/ssdY). But does it make sense to do so? Or is it better to leave the XFS journal inline? > For the drive journaling, it is common to put most OSD journal on one > SSD for such a small setup. Just remember to partition your SSD so that > there is one partition for each OSD. This is an error that caused me a > lot of trouble. Ah okay, this saves me some wasted time. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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