SSD Only build, where are we at?

[jgreco]

You should be able to do 3 way encrypted mirrors. I can't try it right now, but I'm 99% sure you can do it. Just drag the vdev to make it 3 disks wide, then choose mirrors.

That's never worked.

 

[cyberjock]

Interesting... thanks for filing the bug.

 

[David E]

Good news, this is fixed in the latest stable released yesterday!

 

[ybcnyc]

i created 3x3 way mirror using CLI since UI didn't have the option using 1tb 850 EVOs overprovisioned to 830GB. it's feeding over 1GB for now (until i bond it) to 3 soon to 4 proxmox hosts. so getting similar speed over the wire as the last "slower" setup but the responsiveness is a lot better with the kvms with the increased IOPS. DAS on 850s (hooked up to m1015 in dell r720) appears to be working (it's flickering), but i yet to fail the drive (for testing) to see how it behaves.

 

[Black Ninja]

The Samsung 850 Pro's are really nice with a 10 year warranty and 300TBW, or 82TB/day. Unfortunately no DAS.

I was intending to use these drives for small ssd pool.What is this "no DAS" means ?

 

[jgreco]

I was intending to use these drives for small ssd pool.What is this "no DAS" means ?

https://forums.freenas.org/index.php?threads/ssd-only-build-where-are-we-at.42427/page-2#post-275998

 

[Black Ninja]

Ohh I see "DAS signal" not DAS as DAS/SAN/NAS which I see more ofter used.

I did find very annoying that Samsung 850's keep "the bay activity light" on all the time , and actually flickers when there is activity. I did try to find a way around this by researching the possibility to connect MB sgpio to the backplane hoping will work different, but no success. This is what Supermicro told me:

"Hello,

The lights on the drive bays are controlled by the firmware on the hard drives and not by the motherboard, RAID controller, or backplane. The behavior that you described seems normal, as the Samsung SSD is keeping the light on and blinking when there is activity, which is consistent. Basically, SATA drives will keep the light off and blink when there is activity, while SAS drives will keep the light on and blink when there is activity. When there is an issue with this behavior, it will be caused by the drive and not the backplane or motherboard."

If anybody find other solution(other than "Use Intel" cause I know is not an issue wit them) , please share it.

 

[Bidule0hm]

If anybody find other solution(other than "Use Intel" cause I know is not an issue wit them) , please share it.

Are you ready to do some electronics? ... :D

 

[jgreco]

Are you ready to do some electronics? ... :D

Next Bidule0hm says: "Now just solder together this little circuit and tape it to the inside of the SSD case, then use some wire wrap wire to intercept the signal at the connector. A Dremel may be necessary to clear a channel through the plastic but you'll only need to do some fine soldering work to intercept the pin 11 signal at the socket."

 

[Bidule0hm]

Actually it should be pretty simple if it's possible to do what I think :D

 

[gpsguy]

And jgreco will be the US supplier for Bidule0hm's product. ;-)

Next Bidule0hm says: "Now just solder together this little circuit ..."

 

[jgreco]

And jgreco will be the US supplier for Bidule0hm's product. ;-)

Screw that. I'm lazy. I'll just make up a bunch of "Samsung 850 Pro FreeNAS Special Edition" labels and slap them on Samsung 850 Evos.

 

[Black Ninja]

Are you ready to do some electronics? ... :D

Will it be neat solution ? I am not a afraid of some soldering , but I don't wont the "Dremel solution" if it involves carving the sata connector on the SSD?! What is the general idea ?

 

[jgreco]

Will it be neat solution ? I am not a afraid of some soldering , but I don't wont the "Dremel solution" if it involves carving the sata connector on the SSD?!:) What is the general idea ?

Pretty sure his general idea is merely to add what amounts to an inverter. This might be easier than it is for a HDD since pin 11 doubles as the drive spin-up control, which for an SSD probably doesn't matter, but I don't see this as being a good idea. It's an active low signal so we might be talking something as simple as a transistor and probably resistor...

 

[Bidule0hm]

It depends on how the LEDs are controlled but the idea is that if the LED is between the output of the circuitry of the backplane and the ground for example, then you switch its leg from the ground to Vcc, that's the simplest. The best way would be to add a CD4049 or a 74HC04 (good for 6 LEDs) between the output and the LED, or a transistor + a resistor for each LED ;)

 

[jgreco]

It depends on how the LEDs are controlled but the idea is that if the LED is between the output of the circuitry of the backplane and the ground for example, then you switch its leg from the ground to Vcc, that's the simplest. The best way would be to add a CD4049 or a 74HC04 (good for 6 LEDs) between the output and the LED, or a transistor + a resistor for each LED ;)

Well then what you're talking about is a permanent modification to the backplane. That works too but has the downside of not working when you switch drives.

 

[Bidule0hm]

If you add a jumper you can select between the two modes :)

 

[jgreco]

If you add a jumper you can select between the two modes :)

Kinda misses the point of drive trays and hot swap, dontcha think?

 

[Bidule0hm]

Hot swap is evil anyway...

Edit: just to be sure, by jumper I mean this: http://wiki.ultimaker.com/images/Jumpers.png

 

[jgreco]

Hot swap is evil anyway...

Edit: just to be sure, by jumper I mean this: http://wiki.ultimaker.com/images/Jumpers.png

You kids and your newfangled inventions. When I was young, we had knife switches.