> However, if you have thousands of disks that would all
> need to be upgraded to SSDs to save your 20%, it might be
> worth looking into software optimization.
However the margin is still quite high. I've replaced twice big EMC SAN arrays with 8 SSDs, and the performance gain was 300 to 400% (different customers, different applications).
SSDs envelope is usually quite narrow, but if you hit the sweet spot it's such a game changer than it beats everything else.
> need to be upgraded to SSDs to save your 20%, it might be
> worth looking into software optimization.
However the margin is still quite high. I've replaced twice big EMC SAN arrays with 8 SSDs, and the performance gain was 300 to 400% (different customers, different applications).
SSDs envelope is usually quite narrow, but if you hit the sweet spot it's such a game changer than it beats everything else.