On 05/28/2014 09:32 AM, Christian Balzer wrote: > > I was about to write something similar yesterday, but work interfered. ^o^ > > For bandwidth a RAID(Z*/6, don't even think about RAID5 or equivalent) is > indeed very nice, but for IOPS it will be worse than a RAID10. > > Of course a controller with a large writeback cache can pretty alleviate > or at least hide those issues up to a point. ^.^ Also, all benchmarks suck(tm). Are you comparing the exact same workload on the exact same disks on the exact same controller etc. Sure you can have a software raid 6 that's faster than hardware raid 10 -- it may take some work but it should be perfectly doable. -- 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/20140528/7cd3a560/attachment.pgp>
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