On 05/06/2014 11:34 AM, Xabier Elkano wrote: >>>> OS: 2xSSD intel SC3500 100G Raid 1 Why would you put os on ssds? If buy enough ram so it doesn't swap, about the only i/o on the system drive will be logging. All that'd do is wear out your ssds, not that there's much of that going on. (Our servers average .01% utilization on system drives, most of it log writes.) I can see placing os and journals on the same disks, then ssds make sense because that's where journals are. -- Dimitri Maziuk Programmer/sysadmin BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 255 bytes Desc: OpenPGP digital signature URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140506/693bdd0e/attachment.pgp>