Our RAID-0 arrays are not designed ONLY to reduce WRITE cycles:
with a 6G MAX HEADROOM on all SATA cables, which translates
to 600 MB/second @ 10 bits per byte, we routinely see >900 MB/second
on PCIe 1.0 chipsets, and >1,800 MB/second on PCIe 2.0 chipsets.
The extra speed helps us in lots of situations, e.g. updating a large
HTML database with XCOPY, launching programs, CHKDSK,
creating drive images, etc. etc.
Moreover, another (not obvious) reason for our RAID research
is to support a utility patent pending at the U.S. Patent and
Trademark Office in Washington, D.C.
The difference in speed with a RAID-0 array of 6G SSDs
is quite delightful.
I realize that some consumers may not benefit from the extra speed,
but in our situation the extra speed makes us that much more
Here's one way of looking at the extra speed:
Have you ever waited 2 or 3 seconds for a program to launch?
That's totally DEAD time -- waiting for the program to begin
and not doing anything else during that wait time.
if you shave only 1.5 seconds off every minute of
every working day, then:
FTE = 50 weeks @ 40 hours = 2,000 hours @ 60 minutes = 120,000 minutes per year
120,000 @ 1.5 = 180,000 seconds saved per year
180,000 / 3,600 = 50 human hours saved per year (that's more than one 40-hour week!)
100 people (mid-sized professional organization) @ 50 hours = 5,000 human hours / year
5,000 / 2,000 = 2.5 FTE (two and one-half person years of labor)
Conclusion: shaving an average of 1.5 seconds from every minute of work,
in an organization of 100 professionals (whose time is valuable),
saves 2.5 Full Time Equivalents ("FTE") per year. That's the equivalent of
2 1/2 workers each working a full year at no additional labor cost for those 2 1/2 workers!
Now, compare the cost of 50 person-hours v. the cost of a RAID-0 array of 2x or 4x SSDs:
When you fully load the hourly rate of professionals, i.e. with administrative overhead,
you're doing OK to assume at least $100 per hour x 50 hours = $5,000.
Even merely $50 per hour (fully loaded w/ overhead) x 50 hours = $2,500.
HOW MUCH DID THAT RAID-0 ARRAY COST??