Christian Balzer writes: > On Mon, 2 Apr 2018 08:33:35 +0200 John Hearns wrote: >> Christian, you mention single socket systems for storage servers. >> I often thought that the Xeon-D would be ideal as a building block for >> storage servers >> https://www.intel.com/content/www/us/en/products/processors/xeon/d-processors.html >> Low power, and a complete System-On-Chip with 10gig Ethernet. >> > If you (re)search the ML archives you should be able find discussions > about this and I seem to remember them coming up as well. > If you're going to have a typical HDDs for storage and 1-2 SSDs for > journal/WAL/DB setup, they should do well enough. We have such systems (QuantaGrid SD1Q-1ULH with Xeon D-1541) and are generally happy with them. They are certainly very power-efficient. > But in that scenario you're likely not all that latency conscious > about NUMA issues to begin with, given that current CPU interlinks are > quite decent. Right. > They however do feel underpowered when mated with really fast (NVMe) or > more than 4 SSDs per node if you have a lot of small writes. [...] The new Xeon-D 2100 look promising. I haven't seen any storage-optimized servers based on this yet, though. -- Simon. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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