Note also - these disks are close to the performance of memory from a few generations ago (e.g. >10GB/second bulk
transfers)
They also have bigger/faster versions of the drives, 1.2TB each.
I suspect that 5 of those would feel somewhat similar to having 6TB of memory in your db server ... :-) [better in
fact,since writes are fast too]
Graeme.
On 04 Jun 2015, at 13:29, Dorian Hoxha <dorian.hoxha@gmail.com> wrote:
> This looks great when you want in-memory (something like unlogged tables) and you also want replication. (meaning, I
don'tknow of an alternative to get replication with unlogged than to just get faster drives + logged tables?)
>
> On Thu, Jun 4, 2015 at 1:23 PM, Graeme B. Bell <grb@skogoglandskap.no> wrote:
>
> Images/data here
>
> http://www.pcper.com/reviews/Storage/Five-Intel-SSD-750s-Tested-Two-Million-IOPS-and-10-GBsec-Achievement-Unlocked
>
>
>
> On 04 Jun 2015, at 13:07, Graeme Bell <grb@skogoglandskap.no> wrote:
>
> > I previously mentioned on the list that nvme drives are going to be a very big thing this year for DB performance.
> >
> > This video shows what happens if you get an 'enthusiast'-class motherboard and 5 of the 400GB intel 750 drives.
> > https://www.youtube.com/watch?v=-hE8Vg1qPSw
> >
> > Total transfer speed: 10.3 GB/second.
> > Total IOPS: 2 million (!)
> >
> > + nice power loss protection (Intel)
> > + lower latency too - about 20ms vs 100ms for SATA3
(http://www.anandtech.com/show/7843/testing-sata-express-with-asus/4)
> > + substantially lower CPU use per I/O
(http://www.anandtech.com/show/8104/intel-ssd-dc-p3700-review-the-pcie-ssd-transition-begins-with-nvme/5)
> >
> > You're probably wondering 'how much' though?
> > $400 per drive! Peanuts.
> >
> > Assuming for the moment you're working in RAID0 or with tablespaces, and just want raw speed:
> > $2400 total for 2 TB of storage, including a good quality motherboard, with 2 million battery backed IOPS and
10GB/secondbulk transfers.
> >
> > These drives are going to utterly wreck the profit margins on high-end DB hardware.
> >
> > Graeme Bell
> >
> > p.s. No, I don't have shares in Intel, but maybe I should...
> >
> >
>
>
>
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