| From: | Kenneth Marshall <ktm(at)rice(dot)edu> |
|---|---|
| To: | Rory Campbell-Lange <rory(at)campbell-lange(dot)net> |
| Cc: | pgsql-general(at)lists(dot)postgresql(dot)org |
| Subject: | Re: Server upgrade advice |
| Date: | 2019-03-05 21:18:45 |
| Message-ID: | 20190305211845.GC15586@aart.rice.edu |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
>
> > 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
Hi Rory,
NVMe is just a block device. It does have much, much higher I/O
bandwidth than standard disks, 4GB/s versus 100MB/s. I am just starting
with NVMe and SSD for databases. Hopefully, some other more experienced
users can chime in.
Regards,
Ken
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