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4845 Posts

02-22-2010

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  • Message 11 of 20

Re: P700 with PCIe SSD

2015-03-20, 19:56 PM

I believe you can run a StorCLI command from within windows to enable JBOD on the LSI RAID FLEX adapter.  You're right that JBOD doesn't appear to be enabled by default, and I'm checking into why that is.  

 

The best I could do here is try to test your config with yet another PCIe SSD to see if I can set it to boot to that device while still running a RAID array off the RAID FLEX adapter.  The problem is that device isn't a G.SKILL, nor is it a Sandisk (I don't think the Sandisk devices I listed support the int13 function required to support boot).  I'll give it a try and see what I come up with.




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  • Message 12 of 20

Re: P700 with PCIe SSD

2015-03-20, 21:05 PM

I tried the StorCLI route, but it shows no controllers. The FLEX RAID Adpater shows up with an error in the device manager, so it could be that it's not loading properly with the PCIe SSD enabled.

 

Regardless, if I could add items to the RAID config from windows I don't know that it would help. Once a virtual drive is configured in the RAID the PCIe SSD stops being recognized as a boot device.

 

Edit: I'm curious - the configuration on the website for a P700 allows 1 or 2 x M.2. PCIe SSD that are 256GB or so, with the option of having it as your boot drive. But that doesn't appear to be the same as the ioFX 420GB option, as the prices are quite different. So what is the M.2 PCIe SSD option consisting of?

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  • Message 13 of 20

Re: P700 with PCIe SSD

2015-03-23, 16:03 PM

Hey @psuturtle,

 

Any ideas on the M.2 drive?


We're looking at the possibilities for a supported PCIe SSD boot drive in this P700 workstation so that we can get it up and running.

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4845 Posts

02-22-2010

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  • Message 14 of 20

Re: P700 with PCIe SSD

2015-03-23, 18:19 PM

Yes you can certainly use M.2 PCIe SSDs in P700, you just need the M.2 FLEX adapter to do it.  I guess I was under the impression that you wanted to stick to card-based PCIe drives, but yeah if you wanted to go the M.2 route, that's certainly an option.  

 

I think right now the only drive that's officially qualified is the 256GB Samsung XP941.  The 512GB version hasn't been fully qualified (yet).  And obviously we'll continue to add drives as the tecnology evolves.

 

 




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  • Message 15 of 20

Re: P700 with PCIe SSD

2015-03-23, 19:17 PM

I'm guessing I can't use the M.2, since I already have something (FLEX RAID I believe) in the FLEX slot?

 

I would prefer the PCIe SSD route as the one I have now has the best performance on the market, but if using it means I can't use the RAID adapter or any of the 8 drive bays connected to it, then that is not going to work. There doesn't appear to be a lot of options at this point. From what you're telling me the ioFX card is the only route possible for a PCIe SSD in my configuration, and we've had that priced out at $3800 (which is ridiculous for the specs).

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4845 Posts

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  • Message 16 of 20

Re: P700 with PCIe SSD

2015-03-23, 19:39 PM

So it can get a little tricky with P700.  You're correct in that there is a single FLEX connector on the board, meaning it can support at most one FLEX connector.  That can be an M.2 FLEX adapter (with one or two M.2 PCIe SSDs) or it could be a LSI RAID FLEX adapter.  Just depends on your needs really.

 

Some questions to consider:

1.  Will you really need 8 drive connections in the FLEX trays?  If not and 4 drives would suffice, then consider just using the onboard Intel controller for those drives (up to 4 with RAID 0,1,10 support) and then you can still use the M.2 FLEX adapter with one or two PCIe SSDs.

 

2.  If you really need/want all 8 drive connections in the FLEX trays, AND you want the speed/conveinence of M.2 PCIe SSDs, then you'll need to use the LSI 9364-8i ROC controller.  The LSI ROC can support all 8 drives in the FLEX trays, leaving the FLEX connector open to go the M.2 PCIe route.

 

Also note that when any of the LSI solutions are used currently, the P700 will be converted to use blind connect assemblies for the drive connections.  Configs using the onboard Intel controller use manual connections at this point.  Just something to keep in mind if you were thinking of upgrading to an LSI solution later on (doing so would require additional parts to be ordered/sourced and then installed, which isn't trivial).




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  • Message 17 of 20

Re: P700 with PCIe SSD

2015-03-23, 19:51 PM

I definitely don't need 8 drives, 4 would more than suffice. I'd even be happy with just one at this point - how do I go about using the blind connect assembly bays without using the connection points though? Because other than those bays, and maybe the 5 1/4 bay, there's nowhere else to mount a drive, and there's no other power connectors (other than the one for the spare 5 1/4 bay).

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4845 Posts

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  • Message 18 of 20

Re: P700 with PCIe SSD

2015-03-23, 20:13 PM

Blind connect assemblies handle both data and power connections for all 8 drives.  Data is handled via mini-SAS HD connectors that connect to the LSI adapter while power is handled via a single 4-pin molex that plugs directly to the board.  Each blind connect assmebly can support 4 drives total.

 

 




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  • Message 19 of 20

Re: P700 with PCIe SSD

2015-03-23, 22:02 PM

Alright, I give up at this point.

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1 Posts

07-18-2020

Viet Nam

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  • Message 20 of 20

Re:P700 with PCIe SSD

2020-07-18, 14:52 PM

i don't understand has you said.

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