On 05/03/19, Kenneth Marshall (ktm@xxxxxxxx) wrote: > > > > Consequently we're thinking of the following replacement servers: > > > > postgres 11 (planned) > > supermicro 113TQ-R700W > > LSI MegaRAID 9271-8i SAS/SATA RAID Controller, 1Gb DDR3 Cache (PCIE- Gen 3) > > 500gb raid 1 / > > 2tb raid 10 /db > > with "zero maintenance flash cache protection" > > 256GB RAM (2666MHz DDR4) > > 2x E5-2680 v4 Intel Xeon, 14 Cores, 2.40GHz, 35M Cache, > > > > This configuration gives us lots more storage, double the RAM (with 8 > > slots free) and just under 4x CPU (according to passmark) with lots more > > cores. > > > > We're hoping to get two to three years of service out of this upgrade, > > but then will split the cluster between servers if demand grows more > > than we anticipate. > > > > Any comments on this upgrade, strategy or the "zero maintenance" thingy > > (instead of a BBU) would be much appreciated. > Is there a reason not to consider an all flash solution? The AMD EPYC > processor series supports enough NVMe channels to support your sizing. > The 7401P single processor is a good value proposition. Hi Ken Thanks very much for your response. I'm completely naive about the uses of NVMe. Does it support RAID, for instance? Since we are not IO-bound at the moment, do you believe NVMe would relieve our RAM/CPU problems? I'd be grateful for some pointers to database-related NVMe info. Many thanks Rory
