Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 3   >   >>
KRS03
User Rank
Rookie
Re: Reactions
KRS03   8/16/2013 2:28:12 PM
NO RATINGS
No, I don't think a consumer or average commercial customer wants the "cold flash".  Mr. Taylor may not realize that low performance may also indicate poor reliability, heavy redundancy will be a possible result.

Wobbly
User Rank
CEO
Re: Reactions and RMM piles of junk
Wobbly   8/16/2013 1:34:43 PM
NO RATINGS
You missed the point entirely. RAID came into being purely to ameliorate the high cost of enterprise storage by replacing expensive drives with an array of cheap drives, algorithms to distibute data and parity, and silicon acceleration.

Early RAID used 'junk' rotating media to emulate enterprise class storage.

When you upload anything facebook, there is more than one copy. It gets pushed around and indexed.

I believe, also, that they do perform local RAID on the FLASH arrays.

So you have geographical spatial distribution of RAID protected data.

Technology really is a marvelous thing. For more information, look into background on what Amazon has done with the elastic cloud.

Ron Neale
User Rank
Blogger
Re: Reactions and RMM piles of junk
Ron Neale   8/16/2013 1:25:50 PM
NO RATINGS
Wobbly; So for you the ultimate is just piles and piles of junk memory distributed all over the place, storing what in effect piles of junk pictures. Somewhere it falls apart. The phrase making silk purses from sow's ears comes to mind. Future generations of memory devices that solve the impending SSD problems will evolve, move down the cost learning curve and quality,performance and reliability will prevail. Surely becoming known as the repository of junk cannot be could PR for any company.

It is like saying I can make an airliner in the shape of a square box (or even box of junk) and use computers to keep it airborne. Might be possible, but is not the best or most efficient way to go.
 

 

brhans
User Rank
Rookie
Re: Reactions
brhans   8/16/2013 1:12:36 PM
NO RATINGS
So ... you upload your photos to FB, they story them on their proposed new 'low endurance flash' and *maybe* they'll be there when you go to look for them again in a year or so ... ?

Why not just have a 'random' algorithm go and delete old photos to make space for new ones - it amounts to pretty much the same thing doesn't it ?

I realise that they don't make any promises about the retreivability of the photos you upload, but to me this looks like they would rather not even try.

 

Wobbly
User Rank
CEO
Re: Reactions and RMM
Wobbly   8/16/2013 12:42:28 PM
NO RATINGS
I think the whole thing depends on distributed storage. If you use distributed storage for network balancing and delivery caching, you end up with 'accidental' data redundancy as well.

So if your 'junk' storage fails in one location, you get a breif network pause while it shows up from somewhere else. Think in terms of spatially separated RAID, but with replicated full volumes as well as stripes.

With pricey high quality storage this gets expensive. With 'junk' storage, this is cheap.

jaybus0
User Rank
CEO
Re: Lowering DB?
jaybus0   8/16/2013 11:56:18 AM
NO RATINGS
chanj0...... large RAM cache is needed to keep a db on hard drive within tolerable performance levels, particularly for write operations, because of the very slow random i/o speeds of hard drives. Because flash has much faster random i/o than hard dive, it is possible to have larger databases with a given amount of RAM. 

anon9303122
User Rank
Freelancer
Re: Reactions and RMM
anon9303122   8/16/2013 11:34:01 AM
NO RATINGS
Since the members get to use the service free of charge (advertisements not withstanding), how can they complain if Facebook accidentally loses their pictures?  Of course, some slimey lawyer will try to make a federal case out of it.  I think Facebook got it right.

rick merritt
User Rank
Author
Re: Reactions and RMM
rick merritt   8/16/2013 11:29:32 AM
NO RATINGS
@Ron: I also wonder what's the incentive for flash vendors to make a cheaper product at a time when there is such demand for a relatively high value version of flash. It must be easy to say you will get back to them when you aren't quitre so busy.

Ron Neale
User Rank
Blogger
Re: Reactions and RMM
Ron Neale   8/16/2013 7:32:44 AM
NO RATINGS
Resistron: Touch of the PCM deja vus here. In the very early days of phase change memory PCM it was called RMM for Read Mostly Memory. Mostly because of the limited write/erase life that could be guaranteed at that time. Maybe there is still hope! The problem with this request is if if you ask for junk you get junk and then even worse junk. In the end you finish up with what is virtual memory you just kid the users that they are putting the photgraphs that they will never look at into memory but there is nothing there. Esapecially nice if you can charge for it.

 

 

elctrnx_lyf
User Rank
Manager
Drive
elctrnx_lyf   8/16/2013 6:23:35 AM
NO RATINGS
The social community and photo sharing websites seem to drive the entire storage industry in new direction. Will it have major impact on the computer users in future.

<<   <   Page 2 / 3   >   >>


Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

DIY Practical Joke Project Idea
Max Maxfield
12 comments
I just received a rather interesting email from a member of the EETimes community who prefers to remain anonymous. This message was as follows:

Jolt Judges and Andrew Binstock

Jolt Awards: The Best Books
Jolt Judges and Andrew Binstock
1 Comment
As we do every year, Dr. Dobb's recognizes the best books of the last 12 months via the Jolt Awards -- our cycle of product awards given out every two months in each of six categories. No ...

Engineering Investigations

Air Conditioner Falls From Window, Still Works
Engineering Investigations
2 comments
It's autumn in New England. The leaves are turning to red, orange, and gold, my roses are in their second bloom, and it's time to remove the air conditioner from the window. On September ...

David Blaza

The Other Tesla
David Blaza
5 comments
I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...