Custom JBOD "Motherboard"

[TheGuyDanish]

Hello there! Epoka don't deal with private people though, so depending on your situation it might not prove useful at all anyways.

Thank you for the link. It has a lot more information than I am used to having, for enterprise many vendors keep everything really tight. I'll have a look at the full PDF to understand how it works, it looks genius to some extend.

I may drop you a message later. I bought a house not so long ago and just finished routing all the ethernet to a central server room where I have a rack ready, need to build it out first, already got some stuff I want to test, but my 16-bay Qnap didn't survive a 1 year power-off storage, so I'm waiting on a few parts before I can continue there.

I've thankfully got both a VAT number for my business selling the boards, and I work at a place that does sometimes buy refurb'ed equipment, so I'm good on two fronts for that!

And no worries. I know it's chaotic to be shifting around. I only moved back to Denmark last year after spending five years out of country and will be moving into a house I've bought in two weeks myself. So we're both seeing a very similar pain.

 

[kapone]

You can get 12G out of it for sure. I've not thoroughly tested it, since I don't have any 12G SAS devices at home, but in theory, I believe the card can use two links to an HBA for 24G of bandwidth.

You certainly can, and you'd get 96gbps of total bandwidth between the HBA and the Adaptec (each port is 4x lanes, with each lane at 12gbps), with two ports connected.

 

[kapone]

If both ports in the Adaptec card can see all drives connected on the other end, stuff like TrueNAS probably don't know what to do with redundant paths so it might not be possible to use both, but for the time being I am also just using 1 port per shelf, no redundancy.

When you connect two ports to an HBA, it's not for redundancy, it's for additional bandwidth. It's called a "wide" SAS connection, and in theory you could use more than two ports.

Truenas (or other setups) work just fine with two ports connected.

 

[Jelle458]

I've thankfully got both a VAT number for my business selling the boards, and I work at a place that does sometimes buy refurb'ed equipment, so I'm good on two fronts for that!

And no worries. I know it's chaotic to be shifting around. I only moved back to Denmark last year after spending five years out of country and will be moving into a house I've bought in two weeks myself. So we're both seeing a very similar pain.

Awesome! Welcome home!

When you connect two ports to an HBA, it's not for redundancy, it's for additional bandwidth. It's called a "wide" SAS connection, and in theory you could use more than two ports.

Truenas (or other setups) work just fine with two ports connected.

Last time I tried, I just saw all the drives twice, and doing any I/O on them would result in a fail if you hit the same drive at the same time. Maybe they changed how it worked, but before you would just get andditional devices for that second port.

 

[PaperReaper]

Hi! Do you still have boards available? I ideally want 2 (shipping to Estonia)

 

[TheGuyDanish]

Hi! Do you still have boards available? I ideally want 2 (shipping to Estonia)

Hey! Sorry for the (very) late reply. I have, please send me a DM on here and I'll get you the information!

 

[PlainHorse]

Hi @TheGuyDanish I'd like to get two boards as well!