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03-03-2021, 01:17 PM
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#1
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Senior Member
Registered: Nov 2006
Distribution: Debian Linux 11 (Bullseye)
Posts: 3,410
Rep: 
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"Data Center" drive not detected/doesn't start up
I got a new 6TB WD "DC HC310", which is a "data center" disk. The vendor included a power adapter (IDE power to SATA style), but I don't have an IDE power cable on my PSU anymore. When I put the drive in an external USB box, it works just fine. So, is there a way to detect this and start it from software, or do I just need to move some power supplies around and get it to work that way?
Bob
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03-03-2021, 02:17 PM
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#2
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LQ Guru
Registered: Apr 2010
Location: Continental USA
Distribution: Debian, Ubuntu, RedHat, DSL, Puppy, CentOS, Knoppix, Mint-DE, Sparky, VSIDO, tinycore, Q4OS, Manjaro
Posts: 6,080
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You have not provided any information about the hardware you are connecting this SATA disk into. Have you SATA cables?
To make any drive work, you need (1) Power and (2)Signal. SATA is a signal standard. You also need a power connector. Most PSUs have several power connectors that should be appropriate.
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03-03-2021, 03:34 PM
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#3
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Senior Member
Registered: Nov 2006
Distribution: Debian Linux 11 (Bullseye)
Posts: 3,410
Original Poster
Rep: 
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Take it as written that the drive is actually connected to my computer with a power cable and a sata cable. Like I said in my OP, the drive works just fine when I put it in a USB drive box and plug that into a USB port. But, when I put it in the computer box (with power cable and sata cable attached), it is not recognized. It doesn't spin up.
I believe that the important thing here is that it is a "Data Center" disk, not a generic hard disk. I suspect that there is a "power up" line in a DC system that is used to shut down unused drives till they're needed. I suspect that because of the power adapter wire (old style IDE power connector to two SATA power connectors) that was included with the drive, and the note that I will have to install it. My question was whether there was any way around that.
Bob
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03-03-2021, 08:58 PM
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#4
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Senior Member
Registered: Aug 2016
Posts: 3,345
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A Data Center disk is a generic disk built to a little higher standard than the standard desktop disk. There should be no difference between activating it in a USB box or installed.
If it does not spin up that indicates a problem in the way the power is connected to it. If it spins up but cannot be recognized that usually would indicate a problem with the data cable or controller.
Most newer disks are difficult to tell if they actually spin up so when I am testing it I hold the disk in my hand with no cables attached, but the PC powered on. I then attach the power cable and can feel it spin up
Also, most newer sata disks are sata, 6 Gps transfer, and require the better cable to handle that speed.
I would suggest verifying that it actually does spin up then start digging deeper.
We don't know what your system is (32 bit or 64 bit), what OS (distro) you have, or any other details.
Please, once you connect the disk after verifying it actually does spin up, post the output of "dmesg", "lsblk", and "lspci -v" so we can see what the system actually sees and recognizes that disk as.
If you are using a 32 bit OS it is possible a disk of that size will not be recognized properly until after it has been partitioned.
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1 members found this post helpful.
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03-03-2021, 09:15 PM
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#5
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Moderator
Registered: Aug 2002
Posts: 26,517
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WD drives use pin 11 on the power connector for staggered spin up. Normally it should be grounded but maybe not on the internal plug. However if it detects activity it should spin up anyway I believe. Maybe the channel isn't active in the BIOS.
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03-03-2021, 11:36 PM
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#6
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Senior Member
Registered: Nov 2006
Distribution: Debian Linux 11 (Bullseye)
Posts: 3,410
Original Poster
Rep: 
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I found the answer on Tom's Hardware. Apparently my old CX650M PSU doesn't follow the SATA 3.3 standard.
https://www.tomshardware.com/news/hd...ure,36146.html
Quote:
To sum up, for products supporting the optional SATA 3.3 power disable (PWDIS) function, the third pin (P3) of the SATA connector is now assigned as the Power Disable Control pin. If P3 is driven HIGH (2.1V-3.6V), the power to the drive circuitry will be cut. All drives with this optional feature will not power up if a legacy SATA connector is used. This is because P3 driven HIGH will prevent the drive from powering up. The easy, and not so elegant, solution is to use a 4-pin Molex to SATA connector or a power supply equipped with SATA connectors that follow the SATA 3.3 specification.
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Last edited by Quakeboy02; 03-03-2021 at 11:37 PM.
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03-04-2021, 01:32 PM
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#7
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Senior Member
Registered: Aug 2016
Posts: 3,345
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So apparently the molex to sata power cable splitter sent with the drive was needed?
Was that how you fixed it?
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03-06-2021, 11:14 AM
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#8
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Senior Member
Registered: Nov 2006
Distribution: Debian Linux 11 (Bullseye)
Posts: 3,410
Original Poster
Rep: 
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Quote:
Originally Posted by computersavvy
So apparently the molex to sata power cable splitter sent with the drive was needed?
Was that how you fixed it?
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Yes. I guess I should have RTFM.  But at least I know why, now. And if someone else runs into this, hopefully they'll find this thread.
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