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May 09, 2011


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A very good idea. Seamlessly extending the SAN into the server, and the server's local storage into the SAN. It would allow you to use a smaller SSD in the server, while performing like a larger SSD. Also, you could leverage external, SAN-based SSD for high-performance writes, and the internal SSD as a very fast read buffer, providing write consistency and high availability (if that is required by the application). This could be big for big data apps.

Michael Ryom

Im wondering how this will work togehter with RPA(Recover Point). DCC seems smart... But how can you write simultaneously to two storage arrays via RPA, wont RPA be a huge bottleneck?

But it looking good :)


First VPLEX Geo, now this? mind = blown.


SSD fill the gap ! Understanding Project “Lightning” #yam


Conceptually I love the idea. I've been asking for something like this for the last couple of years - I'm happy to see EMC has been listening. I can't wait to get some of these in my lab *hint-hint* ;)


I'm not feeling the DCC love. PrestoServe and TRAM went before, technology caught up in the form of SSD. A customer's end of day processing went from 3 hours to 5 minutes with SSD. I'm not seeing the win of additional layer of caching there. I suspect this is for
VMWare to take IO pressure off the storage path. Okay, but it will
be very limited in OS support otherwise? And if SSD is
at the heart of the SAN, how much added benefit?

Anyhow, MRAM to rule it all, eventually!


Any idea with whom EMC is working on the MLC solution and on lighting project?
There are rumors on small starup companies involved in these projects.. Is it true?

Tim Kossack

What about blade servers...?
will emc offer the cards for the servers themselves or will it license the ip to server vendors like ibm, dell, hp etc.?

Tim Kossack

Hi Chad,

will EMC itself offer these cards or just some sort of driver-software?

Vaughn Stewart

Very nice announcement. Is there any capabilities that Lightning will provide that are beyond what is available from FusionIO today? I'm a big fan of caching technologies and am hoping there's some additional magic bundled in.

Mark Burgess

Hi Chad,

I tried to get some more information on Project Lightning at EMC World but it was so top secret that no one knew anything about it!!!

Could you therefore help with the following:

1. How do the cards work (i.e. do they use FAST Cache with read and write)?

2. Will they work with any array and protocol (i.e. FC, iSCSI and NFS, EMC and non-EMC)?

3. Do they require FAST VP/Cache on the array (VNX/CX4)?

4. What is the typical use case (i.e. virtual desktops)?

5. What is the timescale for release?

One conclusion I came to this week is that Flash is rapidly becoming mainstream and it is not going to be long before SAS drives disappear.

So what is the timescale for MLC based EFDs (someone mentioned Q4)?

Also I saw from your great Chad's World demo that the Iomega devices are supporting flash.

Does this mean that the VNXe3100 will also support flash?

I know in the past we were only expecting flash on the 3300.

Many thanks as always

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