Christian Balzer wrote: > Simply put, a RAID1 of SSDs will require you to get twice as many SSDs as > otherwise needed. And most people don't want to spend that money. > In addition to that DC level SSDs tend to very reliable and your cluster > will have to be able to withstand losses like this anyway. > Finally using a RAID1 to protect against a SSD failure caused by it > running out of write cycles is inefficient unless you're using SSDs with > differing TBW endurance. Because if the SSDs are identical and have seen > exactly the same write load from the start, they're likely to fail at the > same time (or in the Intel DC S ones even guaranteed to be switched to > read-only). Ok, thx Christian, I'm really convinced by your arguments. :) -- François Lafont _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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