Ok finaly i gave up this weekend. I could get the parity drive build with 12 drives, but no more. I had to unplug the last promise card for the server to run. I just miss 3To of data.

 

One day i will get a nice sata card on pci express to test, but that will be in a while, i had enough trying on this server so far

Ok finaly i gave up this weekend. I could get the parity drive build with 12 drives, but no more.

I had to unplug the last promise card for the server to run. I just miss 3To of data.

 

Curious, were the last set of drives all on the same controller?

 

What if you took the current drives on the current controller and spread them onto the two controllers

(leaving out the last 3-4 drives).

 

This may reveal either a problem with the controller, the bus talking to two controllers, or possibly power supply

 

 

 

Yes, the missing 3 drives where on the same PCI promise sata card. In fact i tested unpluging one of the promise card, so without the last 3 drives (i only have space for 15 and not 16 drives) and it worked.

 

I tested before with the 2 promise card but not the internal gigabyte 2 sata controler, and it didn't work.

 

It can't be the power supply, i tested with a new one with one 12V rail that can handle more than 60A on it. And 2 different brand power supply that are faulty, i doubt.

 

There may be some kind of trouble with 2 pci card and 7 disc attached to it. Or these card that work on the sell 1500 unraid server just don't work well with my motherboard. As each test takes 1 day (more than 6 hours after work before it breaks + the preparation time for the test, so i go to sleep before the kernel panic). When it works it takes 17-18 hours. As there is never anything in the log (even tailing to see if before the panic there would be something, but never), maybe there is just a bug in the kernel/driver/bios that raise on heavy load with my configuration. I guess i will never know.

 

So i won't do more test untill i find a decent sata controler that can handle 8 drives and works with unraid. As anyway on PCI, it takes just too much time to check/build parity.

 

And more, with each test, it has to build again the parity drive, meaning during this time my data is not protected. I have now transfered around 6To and don't wish to loose it ;-) I still have 5To to transfert knowing i will still miss a lot

(i can't aford to backup that much data)

 

Anyway, thanks all for trying to help me on this

OK, I agree now, it's not the power supply.

It's the interaction with the two PCI controllers.

Good Luck. Any updates, keep us posted.

OK, I agree now, it's not the power supply.

It's the interaction with the two PCI controllers.

Good Luck. Any updates, keep us posted.

 

Yup.  As posted earlier, this is an issue on some mobos.

 

 

Bill