[USRP-users] Storing signals with full bandwidth of USRP x300/x310

Robert Kossler Robert.D.Kossler.3 at nd.edu
Thu Oct 23 14:09:49 EDT 2014


Does anyone have experience using something like the OCZ RevoDrive 350 PCIe
x8 SSD rather than a RAID array?

http://ocz.com/consumer/revodrive-350-pcie-ssd



On Thu, Oct 23, 2014 at 6:16 AM, Perper via USRP-users <
usrp-users at lists.ettus.com> wrote:

> Thank you Matt for the quick reply.
>
> The requirement to store the data is quite common in radiolocation (i.e.
> SAR imaging) as the radar data is often postprocessed with use of
> different algorithms. Examples of equipment that can be attached to USRP
> x300 in order to store/send large amounts of data with high bandwidth
> might be very valuable for users performing radar measurements with use
> of the USRPs.
>
> Best Regards,
> Piotr Krysik
>
> W dniu 23.10.2014 o 00:57, Matt Ettus pisze:
> >
> > Piotr,
> >
> > The majority of users of X300/X310 are actually processing the data in
> > real time either in the host computer or in the FPGA.  Storing samples
> > at 200 MS/s is possible, but not easy.  There are consumer-level SSDs
> > which can do sequential writes at about 500 MB/s:
> >
> >
> http://www.anandtech.com/show/8528/micron-m600-128gb-256gb-1tb-ssd-review-nda-placeholder
> >
> > With 2 or 3 of those in a RAID configuration you should be able to
> > keep up if you design your app right.  That being said, you'll fill
> > the drive pretty quickly, so an array of cheaper spinning disks may
> > make more sense.  Some people have had luck with 8 drive arrays.
> >
> > Matt
> >
> >
> > On Wed, Oct 22, 2014 at 12:06 PM, Perper via USRP-users
> > <usrp-users at lists.ettus.com <mailto:usrp-users at lists.ettus.com>> wrote:
> >
> >     Hi all,
> >
> >     USRP x300/x310 is able to stream 200MS/s (800MB/s), which is enormous
> >     volume of information. Not many PC's are able to receive such flow of
> >     data, let alone to store several dozen minutes of it.
> >
> >     Thus I want to ask you, USRP x300/x310 developers and users, what
> >     set of
> >     hardware enable you to store the data flow from your USRPs?
> >
> >     In my case I need a system that can be powered with battery, possibly
> >     small and mobile (quite conflicting requirements). However at the
> >     moment
> >     proposition of any system that is able to sustain 200MS/s and store
> it
> >     will be good.
> >
> >     Best Regars,
> >     Piotr Krysik
> >
> >     _______________________________________________
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> >     USRP-users at lists.ettus.com <mailto:USRP-users at lists.ettus.com>
> >     http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> >
> >
>
>
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