Mabro1
3 Zinc

Ask the Expert: All About FLASH.NEXT

YOU MAY ALSO BE INTERESTED ON THESE ATE EVENTS...

Ask the Expert: VMAX All Flash – Extreme Performance at Petabyte Scale, and Best Practices

Ask the Expert: Introducing DSSD & Rack-Scale Flash

https://community.emc.com/events/3696

Welcome to this exciting Ask the Expert event.

On March 5  we announce the exciting new server flash products.  EMC executives, customers, and analysts will discuss these game-changing technologies and EMC’s vision for software-defined server flash on a Live web cast.

Following that this Ask the Expert event will be open and you can continue this conversation with our hosts about the details of the FLASH.NEXT announcement.

This discussion begins on Tuesday, March 5th  and concludes on March 18th. Get ready by bookmarking this page or signing up for e-mail notifications.

Your hosts:

https://community.emc.com/profile-image-display.jspa?imageID=2265&size=350

Avi (Avishek Kumar) is a Senior Product Manager in EMC’s Flash Products Division, focusing on EMC XtremSF and EMC XtremSW Cache.  Prior to joining this team, Avishek was a Corporate Systems Engineer in the CLARiiON Hardware Engineering and Performance Engineering groups.  Avishek holds an MS in Computer Engineering from the University of Massachusetts Dartmouth. 

https://community.emc.com/servlet/JiveServlet/downloadImage/102-21598-1-54716/113-88/Elad+Horn.jpg

Elad_Horn is a Senior Product Manager in EMC’s Flash Products Division, responsible for EMC XtremSW Cache.  Prior to joining EMC, Elad managed database security products at Imperva and held various engineering and positions at Marvell and Intel.  Elad holds a B.Sc. in Electrical Engineering from the Technion-Israel Institute of Technology and an MBA from IDC Israel.

0 Kudos
16 Replies
Mabro1
3 Zinc

Re: Ask the Expert: All About FLASH.NEXT

This event is now open for questions. We look forward to a fun and interactive discussion around FLASH.NEXT.

Thanks and regards,

Mark

RRR
5 Tungsten

Re: Ask the Expert: All About FLASH.NEXT

Ok guys, although I was in the virtual announcement yesterday I had to leave the screen frequently, so in the end all I noticed were commercial words like "1 million IOps", "linear scalable" and stuff, but I need to dig into pdfs to make up my mind and come up with questions.

Can you provide me with some MUST HAVE notes, ppt or white papers so I can actually ask some questions? I won't bother you with questions about pricing, although some sort of a direction or hint about cost per GB is interesting.

0 Kudos
ANolan1
1 Copper

Re: Ask the Expert: All About FLASH.NEXT

Hi RRR, here are the launch slides and a link to the webast replay: https://community.emc.com/message/716998#716998

0 Kudos
RRR
5 Tungsten

Re: Ask the Expert: All About FLASH.NEXT

thank you, I'll dig in

RRR
5 Tungsten

Re: Ask the Expert: All About FLASH.NEXT

I have a question about the "inline data reduction" in the XtremeIO: is this 100% true dedupe? Or a sort of dedupe (best effort) that works well if workload is low and less dedupe when the workload is high? I almost can't imagine that the inline dedupe really can keep up with very extreme workloads, or can it?

Avi3
3 Silver

Re: Ask the Expert: All About FLASH.NEXT

RRR - inline deduplication in XtremIO is "truly" inline and always ON. What this means is that this feature (along with other features like thin provisioning) are always ON and you do not have an option to turn it OFF. In fact, the more deduplication the array does, the more performance benefit you see from an application point of view.

This happens because deduplication has been baked in the software design of the array and is not a "add-on" feature that would potentially impact the array's performance.

RRR
5 Tungsten

Re: Ask the Expert: All About FLASH.NEXT

Cool

0 Kudos
XtremJosh
1 Copper

Re: Ask the Expert: All About FLASH.NEXT

RRR,

Avishek already responded but I thought I'd add some more.  XtremIO is the ONLY array in the market that has truly inline data reduction.  Other vendors who claim to have it can only perform some operations inline (as you pointed out) when the array is not very busy, and will switch off data reduction entirely when the array is processing moderate to heavy I/O loads.  Others don't have any kind of data reduction and others have post-processing.  This leads to very unpredictable performance.  Why are you buying a flash array?  For high levels of predictable performance! 

Furthermore, inline data reduction in combination with other capabilities (for example, VMware VAAI integration and memory-based metadata management) allows the XtremIO array to do some very cool things that nobody else can do.  For example, if you clone a virtual machine in vCenter, no data needs to be copied.  It's already on the XtremIO array, so a few pointer references created in memory are all that's needed.  Thus VMware provisioning tasks are extraordinarily accelerated - cloning VMs takes only a few seconds and doesn't consume and back-end IOPS on the SSDs in the XtremIO array.

Here's a demo of this amazing capability in action:  XtremIO Data Center Scale Virtualization Demonstration - YouTube

Other facts about data reduction on XtremIO:

  • It's global - it takes place over all volumes on the array and across all nodes in the scale-out cluster
  • It's distributed - the data reduction engine scales-out, so all nodes in the cluster share the workload evenly.  There are never any hot-spots or bottlenecks
  • It works across all time - it doesn't matter how long ago a block was stored.  If it comes in again it is removed inline.
  • It improves performance - since duplicate data is never written to flash, the IOPS on the SSDs are available for additional unique data.  XtremIO actually gets faster when more duplicates are seen.
  • The entire array is dedupe-aware - data in the array's DRAM cache is also deduplicated which works wonders for things like VDI boot storms.  Features like snapshots and VAAI and more stuff coming in the future leverage the data reduction engine.

Keep the great questions coming!

Highlighted
RRR
5 Tungsten

Re: Ask the Expert: All About FLASH.NEXT

This is so cool! Thanks for the references, I'll make sure I'll pass the youtube vid around in our sales team

0 Kudos