[Beowulf] Lustre Upgrades

Fri Jul 27 00:10:38 PDT 2018

Hi all,

Jim: the flip side of the cable is: once it is installed you still can use it, 
whereas with the snow mobile you have to pay for every use.

So in the long run the cable is cheaper, specially as we do need fast 
connection for scientific purposes. 

I was at a talk here in London not so long ago when they were talking about 
data transfer of the very large telescope. As that is generating a huge amount 
of data a week, say, a snow mobile would simply not be practical here. 
Besides, the data is generated on  literally the other side of the world. 

All the best from a hot, sunny London

Jörg

Am Freitag, 27. Juli 2018, 00:47:18 BST schrieb Lux, Jim (337K):
> A quick calculation shows that the bandwidth is on the order of single digit
> Tbps, depending on the link length and road conditions.  Pasadena to Ann
> Arbor works out to 7.6 Tbps on I-80
> 
> If they charge by fractional months - it's about a 33 hour drive, so call
> that 1/15th of a month.  So about $35k to do the transport. Significantly
> cheaper than 4000 km of fiber, coax, or cat 5 cable.
> 
> 
> Jim Lux
> (818)354-2075 (office)
> (818)395-2714 (cell)
> 
> 
> -----Original Message-----
> From: Beowulf [mailto:beowulf-bounces at beowulf.org] On Behalf Of Fred
> Youhanaie Sent: Thursday, July 26, 2018 5:10 PM
> To: beowulf at beowulf.org
> Subject: Re: [Beowulf] Lustre Upgrades
> 
> Yep, this could be considered as a form of COTS high volume data transfer
> ;-)
> 
> from https://aws.amazon.com/snowmobile/faqs/ (the very last item)
> 
> "Q: How much does a Snowmobile job cost?
> 
> "Snowmobile provides a practical solution to exabyte-scale data migration
> and is significantly faster and cheaper than any network-based solutions,
> which can take decades and millions of dollars of investment in networking
> and logistics. Snowmobile jobs cost $0.005/GB/month based on the amount of
> provisioned Snowmobile storage capacity and the end to end duration of the
> job, which starts when a Snowmobile departs an AWS data center for delivery
> to the time when data ingestion into AWS is complete. Please see AWS
> Snowmobile pricing or contact AWS Sales for an evaluation."
> 
> So it seems a fully loaded snowmobile, 100PB at 0.005/GB/month, would cost
> $524,288.00/month!
> 
> Cheers,
> Fred.
> 
> On 26/07/18 21:49, Lux, Jim (337K) wrote:
> > SO this is the modern equivalent of "nothing beats the bandwidth of a
> > station wagon full of mag tapes" It *is* a clever idea - I'm sure all the
> > big cloud providers have figured out how to do a "data center in shipping
> > container", and that's basically what this is.
> > 
> > I wonder what it costs (yeah, I know I can "Contact Sales to order a
> > AWS Snowmobile"... but...)
> > 
> > 
> > Jim Lux
> > (818)354-2075 (office)
> > (818)395-2714 (cell)
> > 
> > -----Original Message-----
> > From: Beowulf [mailto:beowulf-bounces at beowulf.org] On Behalf Of Fred
> > Youhanaie
> > Sent: Tuesday, July 24, 2018 11:21 AM
> > To: beowulf at beowulf.org
> > Subject: Re: [Beowulf] Lustre Upgrades
> > 
> > Nah, that ain't large scale ;-) If you want large scale have a look at 
snowmobile:
> > 	https://aws.amazon.com/snowmobile/
> > 
> > They drive a 45-foot truck to your data centre, fill it up with your
> > data bits, then drive it back to their data centre :-()
> > 
> > Cheers,
> > Fred
> > 
> > On 24/07/18 19:04, Jonathan Engwall wrote:
> >> Snowball is the very large scale AWS data service.
> >> 
> >> 
> >> On July 24, 2018, at 8:35 AM, Joe Landman <joe.landman at gmail.com> wrote:
> >> 
> >> On 07/24/2018 11:06 AM, John Hearns via Beowulf wrote:
> >>> Joe, sorry to split the thread here. I like BeeGFS and have set it up.
> >>> I have worked for two companies now who have sites around the world,
> >>> those sites being independent research units. But HPC facilities are
> >>> in headquarters.
> >>> The sites want to be able to drop files onto local storage yet have
> >>> it magically appear on HPC storage, and same with the results going
> >>> back the other way.
> >>> 
> >>> One company did this well with GPFS and AFM volumes.
> >>> For the current company, I looked at gluster and Gluster
> >>> geo-replication is one way only.
> >>> What do you know of the BeeGFS mirroring? Will it work over long
> >>> distances? (Note to me - find out yourself you lazy besom)
> >> 
> >> This isn't the use case for most/all cluster file systems.   This is
> >> where distributed object systems and buckets rule.
> >> 
> >> Take your file, dump it into an S3 like bucket on one end, pull it
> >> out of the S3 like bucket on the other.  If you don't want to use
> >> get/put operations, then use s3fs/s3ql.  You can back this up with
> >> replicating EC minio stores (will take a few minutes to set up ...
> >> compare that to others).
> >> 
> >> The down side to this is that minio has limits of about 16TiB last I
> >> checked.   If you need more, replace minio with another system
> >> (igneous, ceph, etc.).  Ping me offline if you want to talk more.
> >> 
> >> [...]
> > 
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