Home    Bloggers    Messages    Polls    Resources    Newsletter Signup   
Tw  |  Fb  |  In  |  Rss
Jim O'Reilly

NVMe: Driving SSD in the Fast Lane

Jim O'Reilly
Page 1 / 2   >   >>
JohnVerity
JohnVerity
1/27/2013 3:49:43 PM
User Rank
Blogger
PCIe switch?
I gather there is something called a PCIe switch, too, which will enable multiple devices to connect through a single port. This makes for even more capacity.

50%
50%
JohnVerity
JohnVerity
1/21/2013 11:49:59 PM
User Rank
Blogger
Re: NVMe tutorials
The word "non-volatile" in the NVMe name is an intriguing one. I wonder if we'll be seeing more kinds of non-volatile memory than today's flash memory attached to these NVMe interfaces. I bet we will. More memory is more performance.

50%
50%
JohnVerity
JohnVerity
1/20/2013 1:53:07 AM
User Rank
Blogger
Re: NVMe tutorials
I gather there is growing dissatisfaction with Fiber Channel; it's getting long in the tooth (aren't we all?) and looks increasingly like it's in need of replacing. Perhaps NVMe will be the technology to do that. 

50%
50%
Henrisha
Henrisha
1/19/2013 2:12:38 AM
User Rank
Kilo
Re: NVMe tutorials
This sounds like a huge boost, performance-wise. Thanks for the additional links, John--looks like they'll make for some good additional reading.

PS. I like the sound of 'squeaky geeky' too!

50%
50%
JohnVerity
JohnVerity
1/18/2013 8:47:29 PM
User Rank
Blogger
NVMe tutorials
I just stumbled across an in-depth tutorial on NVMe here, courtesty of SNIA. In PDF.

And another useful-looking document here, by Dell and IDT, as presented at the Flash Memory Summit summer of 2011. 

50%
50%
JohnVerity
JohnVerity
1/16/2013 11:05:40 AM
User Rank
Blogger
Re: My Thunks
"Squeaky geeky"! I like it.

50%
50%
JohnVerity
JohnVerity
1/16/2013 11:02:07 AM
User Rank
Blogger
Re: when?
Ah, very interesting, Jim. 

50%
50%
JimOReilly
JimOReilly
1/15/2013 1:06:28 PM
User Rank
Blogger
Re: when?
I believe NVMe devices will mostly use PCIe x4 connections. A 'universal' PCIe/SAS/SATA connector is being defined, so I assume we will see dedicated ports on the motherboard. Wheteher these ports can be programmed for NVMe or SAS isn't clear.

50%
50%
JohnVerity
JohnVerity
1/15/2013 12:53:28 PM
User Rank
Blogger
when?
Will we see NVMe take off this year, or is it sill something slightly exotic? I forget, does the server need to have a special slot for it, or it just uses PCIe? 

50%
50%
JimOReilly
JimOReilly
1/15/2013 12:30:44 PM
User Rank
Blogger
Re: My Thunks
@john, that's correct. The SCM comcept I described allows a program to open a storage space, and then treat it like it's part of the main memory. Apps like memcachedb will see a big uptick in performance.

50%
50%
Page 1 / 2   >   >>
More Blogs from Jim O'Reilly
Adding a tier of SSD to your SAN is cheaper than buying racks of hard drives.
Buying servers by the acre changes your universe -- everything from design to maintenance changes. What is it like to buy datacenter hardware in huge quantities?
Real disk drives and networks shape specialty hardware today. SDN cheerfully ignores that, but can it work?
Containerized datacenters change the economics of IT. How can mere mortals use them?
Non-Volatile Memory-express (NVMe) is screamingly fast and, with the completion of the latest plug-fest, it's enterprise ready.
flash poll
follow us on twitter
like us on facebook
Datacenter Acceleration
About Us     Contact Us     Help     Register     Twitter     Facebook     RSS