On 07/22/2013 01:02 PM, Oliver Fuckner wrote: > Good evening, > > >> I have not yet had the opportunity to try one, but something like the >> Marvell Dragonfly might be a very interesting option for servers with >> 24+ drives: >> >> https://origin-www.marvell.com/storage/dragonfly/nvram/ > > yes, Marvell Dragonfly also looks very promising to me, i like the > NVDRIVE with up to 1.5T "internal" (-> on the card) Flash. > > On the second look you see that they use 4 Sandisk X100 SSDs in RAID5 > and those SSDs only have 80TBytes Write Endurance each... that makes me > nervous. I'm less interested in the nvdrive, and more interested in the nvram. with 8GB of RAM you could reasonably do journals for 24 OSDs and it's backed by 32GB of flash for power failure. Only questions are whether or not the board itself is reliable (though hopefully it would be no less reliable than a traditional SAS controller), and whether or not the super capacitor can be trusted. Of course cost could be an issue... > > Oliver > > > sources: > http://www.tweaktown.com/news/27686/marvell_dragonfly_nvdrive_sandisk_x100_ssd_unveiled/index.html > (via http://www.marvell.com/storage/dragonfly/news/) > http://www.sandisk.com/products/ssd/sata/x100-solid-state-drive/ > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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