I've seen the OS running on SATA DOMs and cheap USB sticks. It works well for some time, and then it just falls apart. Paul 2018-08-14 9:12 GMT+02:00 Burkhard Linke <Burkhard.Linke@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>: > Hi, > > > AFAIk SD cards (and SATA DOMs) do not have any kind of wear-leveling > support. Even if the crappy write endurance of these storage systems would > be enough to operate a server for several years on average, you will always > have some hot spots with higher than usual write activity. This is the case > for filesystem journals (xfs, ext4, almost all modern filesystems). Been > there, done that, had two storage systems failing due to SD wear.... > > > The only sane setup for SD cards amd DOMs are flash aware filesystems like > f2fs. Unfortunately most linux distributions do not support these in their > standard installers. > > > Short answer: no, do not use SD cards. > > > Regards, > > Burkhard > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- Paul Emmerich Looking for help with your Ceph cluster? Contact us at https://croit.io croit GmbH Freseniusstr. 31h 81247 München www.croit.io Tel: +49 89 1896585 90 _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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