Den lör 13 mars 2021 kl 12:56 skrev Marc <Marc@xxxxxxxxxxxxxxxxx>: > > A good mix of size and performance is the Seagate 2X14 MACH.2 Dual > > Actor 14TB HDD. > > This drive reports as 2x 7TB individual block devices and you install > > a OSD on each. > > My first thought was, wow quite nice this dual exposes itself as two drives. I was always under the impression that it was just one single drive with just more iops. > But come to think of it, with such a solution you do create a failure domain that ceph does not know about. With the default host failure domain the only problem is that you have an increased risk of 2 drives failing at once. > Is it possible to configure this drive whether it exposes itself as two drives or just one bigger-faster one? Well, if you run with failure-domain=host, then if it says "I have 8 14TB drives and one failed" or "I have 16 7TB drives and two failed" isn't going to matter much in terms of recovery, is it? It would mostly matter for failure-domain=OSD, otherwise it seems about equal. -- May the most significant bit of your life be positive. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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