Re: Had IBM wanted to do an XIV Gen4, they would have done it by now
You're correct to a point, but I think it comes down to IBM not being bothered to change the marketing collateral.
Why say that? Imagine if you had a storage system you'd been selling for a few years, then you upgraded pretty much everything (including the software).
Would you still call it VNX? No, you'd call it VNX2, but then you work for a company that understands (and does) marketing!
With XIV Gen 3, here is an incomplete list of some of the changes that were made over the years after the 2011 announcement:
- yes, larger drives were made available
- self encrypting drives launched
- faster CPUs used
- additional memory (cache added) per module when using larger drives
- larger SSDs for read cache per module
- inline compression was added to the SW function (and added as standard for the latest "version" of Gen 3)
- 2nd CPU (and extra memory) added per module to ensure compression didn't limit performance
None of these things were apparently enough to warrant the name changing to Gen 4. This lead to people calling the various flavours Gen 3, Gen 3.2 and Gen 3.4.
I know of organisations that have replaced "Gen 3" with "Gen 3", but that makes it sound like there wasn't a difference - well the TB per floor tile and performance (IOPS up and latency down) had improved enormously - it was the next generation in all but name.
Compare with Intel, who are great at marketing very tiny differences as if they make a world of difference. You don't have to explain to IT people that replacing 5 yr old Xeons with new Xeons is likely to lead to a significant performance boost/footprint reduction. "But they're still just Xeons". Quite......
On the other point, A9000R is the all Flash XIV - but it's not a Gen 4.
It's not just "XIV" from a marketing perspective to make it familiar to customers - it's "XIV" as it's running the "XIV" Spectrum Accelerate code. If anything, that makes it a happier transition for customers than VNX2 to Unity doesn't it?
Or is the issue just "The Importance of Being Earnest / XIV?".