Hi Dietmar, I asked the same question not long ago, this this may be relevant to you: http://www.spinics.net/lists/ceph-users/msg24359.html Cheers, Si > -----Original Message----- > From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf Of > Dietmar Rieder > Sent: 01 March 2016 11:30 > To: ceph-users@xxxxxxxxxxxxxx > Subject: MDS memory sizing > > Dear ceph users, > > > I'm in the very initial phase of planning a ceph cluster an have a > question regarding the RAM recommendation for an MDS. > > According to the ceph docs the minimum amount of RAM should be "1 GB > minimum per daemon". Is this per OSD in the cluster or per MDS in the > cluster? > > I plan to run 3 ceph-mon on 3 dedicated machines and would like to run 3 > ceph-msd on these machines as well. The raw capacity of the cluster > should be ~1.9PB. Would 64GB of RAM then be enough for the > ceph-mon/ceph-msd nodes? > > Thanks > Dietmar > > -- > _________________________________________ > D i e t m a r R i e d e r Please visit our new website at www.pml.ac.uk and follow us on Twitter @PlymouthMarine Winner of the Environment & Conservation category, the Charity Awards 2014. Plymouth Marine Laboratory (PML) is a company limited by guarantee registered in England & Wales, company number 4178503. Registered Charity No. 1091222. Registered Office: Prospect Place, The Hoe, Plymouth PL1 3DH, UK. This message is private and confidential. If you have received this message in error, please notify the sender and remove it from your system. You are reminded that e-mail communications are not secure and may contain viruses; PML accepts no liability for any loss or damage which may be caused by viruses. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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