EXPIRED UK/EU - C240 M5 26sff - 40gbe

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Cruzader

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Jan 1, 2021
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@Cruzader: May you check please for the item number of the cable to the two drives in the rear? Does yours connect to the SAS RAID or to NVME?
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Got this one going to SAS card.

I assume its taking power from mobo since pcb looks like this and connects to it.
1693059433276.png
 

michel333

Member
Apr 9, 2023
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Meanwhile I am sure the one I’ve got was not intended for me. It has a CPU (6132) and 96GB RAM mounted.
@Cruzader: May you check please for the item number of the cable to the two drives in the rear? Does yours connect to the SAS RAID or to NVME?
After all not bad!
 

michel333

Member
Apr 9, 2023
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Picked up 3 of mine today and opened them to have a look, specs are as they should for all 3.

1 was 2019 v02 and 2 of them 2020 v03.
View attachment 31219
'
All 6 cables to backplane and the one to rear bays.
View attachment 31220


The included backplane model/config
View attachment 31222
View attachment 31221
That means 2 out of 3 usable in 1 cpu config like this, to get the x16 slot for the 2nd 40g card i assume (since B riser with all 3 on cpu1 dont have a x16).
"Includes 3 PCIe slots (x8, x16, x8). Slots 1 and 2 controlled with CPU1; slot 3 controlled with CPU2."

Only suprise was this one left behind by a sloppy tech (when pulling the 2nd 40g card i assume).
View attachment 31223
Nice, one from 2019 and two from 2020! That's really good!
 

ano

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Nov 7, 2022
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8 a clock at night, apparantly random postoffice at food store has 8 of them, so much for business to the door shipping
 
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Cruzader

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Jan 1, 2021
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1693289022873.png
My last one is still stuck in global shipping in Oslo and not handed over to postnord :|

And i put a 99£ starting bid on a lot of 20 Gigabyte TO22-C21 OCP nodes that i won.
That has the 4x U.2 addon board in them, so i might be replacing the cisco boxes before they even get put into use.
1693289786713.png

I dont suppose you have a lead on where to get a spare OCP rack @ano ? :p i dont know anybody working with OCP in Norway myself.
 
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ano

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Nov 7, 2022
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very nice! I know someone on .cz and .de that does OCP racks.. nobody here that I can think of fast, will ask

I might be interested in some of your cisco btw, but ideally need some more u.2 for lab myself
 

ano

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Nov 7, 2022
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unpacked first unit, cisco really hates techs & loves their own standard, like the nonstandard pcie connector on backplane, any idea what thats called? I have a lot of gen3 and gen4 pcie nvme cards I'd like to plugin, ghetto plugigng in the rear slots is easy though!

wanna use som m.2? hahahaha. $300 for the card, and its raid.

on the positive side,huge props to dude on thingiverse who designed 3d printable caddies, they work perfectly
 

mrpasc

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Jan 8, 2022
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Munich, Germany
wanna use som m.2? hahahaha. $300 for the card, and its raid
Yes, and I did not figure out if bifurcation is possible. Hoped it would be kind of automatic (as some Dells like T7820/T7920 do) but no success.
No option in Bios.
Same for the VROC. Put in two P3600 and activated VMD but no success. Manual states „Intel VROC Key (Intel SSDs only) included in BIOs, no activation key needed“ but can’t get it working.
 

ano

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Nov 7, 2022
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interesting, didnt even think lack of bifurcation was possible

I do understand why theese are cheap now at least ;D
 
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ano

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Nov 7, 2022
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what is the bios flag for non oem ram?
seems 2 of my units camemissing the hw for rear 2 ports
 
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ano

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Nov 7, 2022
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bifurcation seems a nogo, kinda bummed, able to enter bios now at least

need a nvme m.2 or u.2 that has a switch then, or riser costing 3x the server ;D

guess its a sata/sas lab, at least they were cheap
 

turbo

Member
Mar 17, 2022
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I got one of these boxes from a similar US listing, but I know almost nothing about it.

It's missing the rear NVME 2x rear bay connectors (I think 74-114791-02 ?)

Also just has a bunch of cables coming from the front drive bays that aren't connected to anything. They are so short I assume they can only be connected to a card in the slot marked "MRAID" ?

I want to use it for TrueNAS and ZFS, so I'd prefer a regular HBA to any hardware RAID. I think I'm looking for a card like this UCSC-SAS-M5 ? But this says it only handles 16-drives, anybody know what you're supposed to do for the rest? :-D

There is a power cord hanging off the PCI riser that looks like it should be connected somewhere but I don't see a matching connector on the MB.
 

ano

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Nov 7, 2022
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normally the rear 2 bays are connected to the SAS, but you can connect it to nvme in rear with 2 cpus it seems, or correct riser 1 maybe (not sure yet)

you can toggle JBOD mode on the drive/controller, it seems to be working decent with ZFS from the labbing today

you can connect the cables to normal HBA, (front is non expander) but there is i2c magic happening
 

mrpasc

Well-Known Member
Jan 8, 2022
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Munich, Germany
normally the rear 2 bays are connected to the SAS, but you can connect it to nvme in rear with 2 cpus it seems, or correct riser 1 maybe (not sure yet)
If you want to connect first two front bays and/or two rear bays for NVME :
You need two CPUs as you need Riser2B or Riser 2C. Those risers come with one (2B) Oculink x8 or two Oculink x8 (2C) Ports. You need a Oculink x8 to 2 Oculink x4 Y-cable and an NVME backplane for the rear ports.
Tried to source one of those risers, first shot was a miss, seller had written 2C in description but sent riser 1B. Got refund but still no riser.
All details here: Cisco UCS C240 M5 Server Installation and Service Guide - Overview [Cisco UCS C240 M5 Rack Server]
 
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