My Mac Pro's been rock solid for more than four years so far.
My comment was in response to the addition of the cell phone issues on top of what you've recently been through...
Nothing started happening until I put in the Areca card.
I've used them for years, and haven't had these kinds of issues (only heard of 1 issue with the 1880 series when it first shipped <wrong part value went in on the production line that slipped past>, and your unit, which I will presume defective until proven otherwise).
It's possible that the OWC drive was the actual culprit (may have gone bad, and as it was on the card, and the set is always based off of the worst performing disk in the set, dictated the entire set's performance was horrible <= 67MB file transfer issue when writing to the set>).
But I can't be sure, and given what has happened with Computer Brain (open box, and extremely short time frames regarding returns), I do suspect they knowingly sent you an open box that was previously returned as a defective unit. BTW, Areca's warranty returns are handled by kaleidescope.net, which is the US Distributor (they usually ship out a unit that's ready to go <must have one available of course>, then actually go through the circuits of the defective unit, as the results can help the engineers sort problems).
It's just that the troubleshooting in the last month or so has taken so much of my time that it's frustrating beyond comprehension.
Understandable.
Been there on more than a few occasions myself (issues have usually been either bad disks/weren't validated by the card maker, or software). Cabling length issues have also cropped up from time to time, as well as the use of adapters with SATA drives (internal to externals that are held in a PCI bracket, and are only meant for SAS based disks). Most of which were systems I didn't order the parts, but came in later to trouble shoot the problem (have had disks go bad I did order).
Problems linger after the hardware is long gone too.
See above (I'm under the impression the 67MB file transfer issue went away after you pulled the OWC SSD).
In the case of OWC, they're good about returns from what I understand (haven't had to do a return though them myself, so I don't have first hand experience on that yet).
On the bright side, I got Windows XP Pro booted in AHCI mode on my Mac Pro after much finagling and with that tried to flash the firmware on the OWC SSD before I had to send it back in for RMA and found that AHCI is indeed a main reason their firmware updater is not compatible with the first three Mac Pro revisions - these machines do not boot into AHCI mode in non-OS X OSes natively and must be forced to do so by the user with great effort (and risk to the data on the partition).
At least there is a way to get it going... (clones are wonderful things to save time in the event of a future problem
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).
The only thing keeping me from getting a new Mac Pro right here and now is that the new SNB Mac Pros are likely due out in November, a mere two months away. They'll have SNB CPUs, much faster RAM, a much better QPI (two in fact), and if we're really lucky SATA3 native ports. I couldn't care less about Thunderbolt, and I hope the Mac Pros don't get it because that one port takes up 8 PCI-E lanes that could be better spent on cards which are suited for the Mac Pro (TB express docks are really meant for laptop users, not desktops with dedicated PCI-E slots).
The parts may be available to vendors in November, but don't expect systems to ship by then. It typically takes 13 weeks of lead time (1 Q) to get systems manufactured, validate the production systems are within specifications (where they can find the wrong part was loaded, such as the wrong resistor value for the location), and get them shipped.
As per the SB-E5 based MP's, they may not add as much performance as you might think. It will depend on the software being used as to whether or not more cores will help (whether or not the software is threaded or not). There will be a performance increase (typically ~15% for the same use), but the cost may be too high to justify it for some.
For example, the memory channels won't matter for creative professionals (can't take advantage of the bandwidth due to the way the applications are written = capacity trumps memory bandwidth).
In your case, the performance difference between it and a 2006 MP will be rather noticeable however, so it would be a viable upgrade. But so would a 2009/10 for that matter (2008's too, but they would need upgraded sooner, and FB-DIMM is expensive; DDR3 ECC is much cheaper).
So it's really limited by your budget. And if you can wait, I'd recommend you do so. That way you'll be able to decide what machine has the best price/performance ratio for your specific needs (whether or not you go SP, DP, and of what model that best fits both performance and budget).
BTW, 2009/10 DP systems also have 2x QPI channels. SP systems only have 1x QPI channel to the chipset (same model years). In the case of SB, the chipset (actually a
PCH), is attached via DMI 2.0.