> failure-domain=host yes (or rack/room/datacenter/..), for regular clusters it's therefore absolute no problem as you correctly assumed. -- Martin Verges Managing director Mobile: +49 174 9335695 E-Mail: martin.verges@xxxxxxxx Chat: https://t.me/MartinVerges croit GmbH, Freseniusstr. 31h, 81247 Munich CEO: Martin Verges - VAT-ID: DE310638492 Com. register: Amtsgericht Munich HRB 231263 Web: https://croit.io YouTube: https://goo.gl/PGE1Bx Am Sa., 13. März 2021 um 13:08 Uhr schrieb Janne Johansson <icepic.dz@xxxxxxxxx>: > > 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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