Can't see new disks

[Octopuss]

I have connected four new SAS disks to the HBA card (LSI 2308-something), but I can't see them. In the other card's port there are three SATA disks that the pool consists of.
Does anyone have any idea what's going on?

 

[c77dk]

How are the disks connected? Sounds like you might be using a breakout cable ? If so you might have the wrong one (forward/reverse)

 

[Octopuss]

What is breakout cable?
I bought this https://www.amazon.com/gp/product/B096TFBR37/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1

 

[Octopuss]

Ok there must be some other problem, the disks aren't even spinning. What the hell?

 

[c77dk]

What is breakout cable?
I bought this https://www.amazon.com/gp/product/B096TFBR37/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1

My bad - haven't had enough coffee today. Read it as SATA disks and not SAS.
But what you have there is a breakout/fanout for SAS (as it should be).

 

[Octopuss]

ATX power supply should provide the correct voltage to a SAS disk, right? I can't figure out what am I doing wrong.

 

[Octopuss]

I tried different PSU and still nothing.
The disks should power on even with the cable not connected to any HBA, right? There are still the SATA power connectors, so...

 

[c77dk]

I tried different PSU and still nothing.
The disks should power on even with the cable not connected to any HBA, right? There are still the SATA power connectors, so...

See this post https://www.truenas.com/community/threads/sas-cabling-and-power.62373/

 

[Alecmascot]

That will be the Pin 3 3.3v issue.

 

[Octopuss]

Well, I taped the third pin on all of the disks, and the PC wouln't even power up anymore.

I think I'm just screwed.

 

[Alecmascot]

the PC wouln't even power up anymore.

you mean it would not boot ?
What SAS drives are we talking about ?

 

[Octopuss]

No, the entire machine won't power on with the SAS disks (with the pin taped out) connected.

It's HGST HUS726040AL4210

 

[Alecmascot]

The HGST 7K6000 drives have the power pin disable feature. I just went through this.
From the product manual :

 

[Octopuss]

Yeah, how does that help me? I already taped the pin out and it doesn't work to say the least.

 

[Alecmascot]

When you say you taped pin3 on ALL the drives; do you mean just the SAS drives

 

[Octopuss]

Jesus, of course I mean the SAS drives, why would I mess with what's already connected and working?
So, yes, just the SAS drives.

 

[Alecmascot]

I cannot get my head around how isolating the pin3 3,3v pin on 4 of the connected 7 drives inhibits the motherboard power-on.
How are the drives connected to the power supply ?

 

[Octopuss]

PSU->SATA power cable->SAS cable's SATA connectors->disk

 

[Alecmascot]

Looks ok.
I would go back to the simplest power cabling with one drive at a time and find the point at which it fails.

 

[Octopuss]

I tried that :(
The damn PC doesn't power up even with just one of the disks connected.
The cable can't be bad though.

I'll try to get some molex-SATA cables to see if that works, but at this point I'm just lost.