Instead of "ramping up" to raid 0 NVME... why not ramp up to a more appropriate business database solution that has RAM caching built-in and doesn't require you to run it on your workstation/desktop as well?Thanks, Patrick: because motherboards do not presently support 4 x U.2 ports,
I'm waiting to build a system with:
1 x Highpoint 3840A
4 x U.2 cable
1 x 5.25" 4-in-1 enclosure
(see Icy Dock's CAD drawing below: but add 2 x 40mm fans):
+ U.2 cables
+ Icy Dock MB998IP-B(CP014)
MB998IP-B_2.5" HDD/SSD Cages_ICY DOCK manufacturer Removable enclosure, Screwless hard drive enclosure, SAS SATA Mobile Rack, DVR Surveillance Recording, Video Audio Editing, SATA portable hard drive enclosure
I now have a PCIe 2.0 workstation working very well with:
13GB ramdisk using RamDisk Plus from www.superspeed.com
4 x SanDisk Extreme Pro SSDs in RAID-0
several HDD "spinners" for backups
RamDisk Plus SAVEs and RESTOREs using that RAID-0 array.
Windows is installed in a 50GB primary NTFS partition on the RAID-0
and our 12GB database is stored in the ramdisk
in the secondary data partition on the remainder of that RAID-0 array.
So, I'd like to "ramp up" to NVMe using U.2 topology (see above).
As you know, Intel's DMI 3.0 link is limited to x4 lanes @ 8 GHz:
so, Highpoint's x16 edge connector is THE ELEGANT SOLUTION:
Want Ad: PCIe NVMe RAID controller
four @ x4 = x16
p.s. I'm assuming that Highpoint's 3840A is also bootable:
if not, they need to cure that omission ASAP:
the OS needs to be on a RAID-0 array of 2 or 4 x 2.5" NVMe SSDs, and
a proper enclosure will do the necessary cooling --
to prevent thermal throttling.
This goal is not mere dreaming: I've been corresponding
with May Hwang at Highpoint, and their 3840A satisfies
our WANT AD almost perfectly.
Allyn Malventano at www.pcper.com
has been invited to meet with May Hwang at Highpoint's
FMS booth as we speak, so expect an expert review
from Allyn in the very near future.
Keep up the good work, Patrick!
/s/ Paul (patent pending)
I don't need to have "special knowledge of the future" as you say to understand that RAID introduces latency, and when you're not dealing with a huge # of users simultaneously accessing large chunks of data you're going to come no where at all needing to access > 2GB/s capacity that 1 single NVME can already do. Therefor for your work load, and many others like it RAID0 is absolutely worthless, and as I said before using an appropriate database that handles in-memory cache will be not only easier to use, faster to access but easier to manage and cost less than your proposed solution.> RAID-0 of NVME ... will be slower than single (1) NVME drive without raid-0
I think your statement is backwards, frankly.
Well, since you're claiming special knowledge of the future,
without having done the requisite experiment,
we'll just have to wait until the reviews of Highpoint's 3840A
My prediction is that 4 x Intel model 750 NVMe SSDs
in RAID-0 wired via 4 x U.2 cables to Highpoint's 3840A
controller will tell us what we need to know -- no backplane,
but wired directly to the SSDs' connectors.
I doubt very much that Highpoint would have invested
so much engineering, only to produce an NVMe RAID Controller
with which a single JBOD drive is faster that a RAID-0 array
of 2 or 4 NVMe drives.
Yes, I believe you've got it backwards: but, I am willing to await
the experimental results, before claiming victory