>>> Christian Balzer <chibi@xxxxxxx> schrieb am Dienstag, 12. April 2016 um 01:39: > Hello, > Hi, > I'm officially only allowed to do (preventative) maintenance during weekend > nights on our main production cluster. > That would mean 13 ruined weekends at the realistic rate of 1 OSD per > night, so you can see where my lack of enthusiasm for OSD recreation comes > from. > Wondering extremely about that. We introduced ceph for VM's on RBD to not have to move maintenance time to night shift. My understanding of ceph is that it was also made as reliable storage in case of hardware failure. So what's the difference between maintain an osd and it's failure in effect for the end user? In both cases it should be none. Maintaining OSD's should be routine so that you're confident that your application stays save while hardware fails in a amount one configured unused reserve. In the end what happens to your cluster, when a complete node fails? Regards Steffen > > Christian > -- > Christian Balzer Network/Systems Engineer > chibi@xxxxxxx Global OnLine Japan/Rakuten Communications > http://www.gol.com/ > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- Klinik-Service Neubrandenburg GmbH Allendestr. 30, 17036 Neubrandenburg Amtsgericht Neubrandenburg, HRB 2457 Geschaeftsfuehrerin: Gudrun Kappich _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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