> -----Original Message----- > From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf Of Marc Roos > Sent: 14 January 2017 12:56 > To: ceph-users <ceph-users@xxxxxxxx> > Subject: Mixing disks > > > For a test cluster, we like to use some 5400rpm and 7200rpm drives, is it advisable to customize the configuration then as described on > this page. Or is the speed difference to so small, and should this only be done when adding ssd's to the same osd node? I wouldn't add two different disk types to the same pool, it will likely just bring the speed of the pool down to the slowest disk. You could either use them as two different pools to provide different tiers of storage, or use tiering to allow automatic data migration between them. Although I would have to question the logic of what you are trying to achieve. The speed/cost difference between the two types isn't that great and I'm not sure if it's worth the hassle? > > https://www.sebastien-han.fr/blog/2014/08/25/ceph-mix-sata-and-ssd-within-the-same-box/ > > > > > > > -----Original Message----- > From: David Turner [mailto:david.turner@xxxxxxxxxxxxxxxx] > Sent: vrijdag 13 januari 2017 21:36 > To: Chris Jones > Cc: ceph-users@xxxxxxxx > Subject: Re: Ceph Monitoring > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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