My only excuse for asking this question here is that I am running CentOS-6.5 on my HP MicroServer.
I recently purchased a 2TB WD hard drive (WD20ESRX), and was surprised to find that the power-connector on this drive did not seem to be in the correct place for the drive-bay. (The drive bay closes, but the disk does not spin.)
The power connector on the drive is further from the SATA connectors than on the other 4 drives I have in my two MicroServers - it is about 2/3 of the way across the back of the drive, on the opposite side to the SATA connectors.
I'm surprised because I always thought that the positions of the connectors on SATA hard drives was standard.
How can I find whether or not a hard drive will connect properly in the drive-bay? Was I unlucky to choose a drive that did not fit?
On 02/06/2014 07:57 PM, Timothy Murphy wrote:
My only excuse for asking this question here is that I am running CentOS-6.5 on my HP MicroServer.
I recently purchased a 2TB WD hard drive (WD20ESRX), and was surprised to find that the power-connector on this drive did not seem to be in the correct place for the drive-bay. (The drive bay closes, but the disk does not spin.)
The power connector on the drive is further from the SATA connectors than on the other 4 drives I have in my two MicroServers - it is about 2/3 of the way across the back of the drive, on the opposite side to the SATA connectors.
You don't by any chance have it upside down?
On 2/6/2014 5:51 PM, Warren Young wrote:
On 2/6/2014 17:57, Timothy Murphy wrote:
I recently purchased a 2TB WD hard drive (WD20ESRX),
From where? A search on wdc.com says there is no such part number.
Did you mean E*Z*RX?
Can you take pictures of the drive, both sides, and post them for our perusal?
here's a WD20EZRX, http://ecx.images-amazon.com/images/I/71hgUgJ0CQL._SL1500_.jpg
looks pretty normal to me.
John R Pierce wrote:
I recently purchased a 2TB WD hard drive (WD20ESRX),
From where? A search on wdc.com says there is no such part number. Did you mean E*Z*RX?
Sorry. That was a typo. The WD hard drive is: WD20EZRX (as suggested).
here's a WD20EZRX, http://ecx.images-amazon.com/images/I/71hgUgJ0CQL._SL1500_.jpg
looks pretty normal to me.
That picture shows the WD drive above that I have. As you see, there is an empty (and slightly smaller) "slot" between the SATA connectors and the power connector.
Now I'm looking at one of the drives that works in my HP SuperMicro drive-bay. This is the Seagate 250GB Barracuda drive (ST3250318AS) that came with the machine. In this the power connector(s) are in the same position as the empty slot above, although the slot is slightly wider. This is true of the other 3 drives in my 2 SuperMicros.
(Unfortunately I cannot provide a photo at the moment, as both my Android phone and my camera are out of action.)
Timothy Murphy wrote:
here's a WD20EZRX, http://ecx.images-amazon.com/images/I/71hgUgJ0CQL._SL1500_.jpg
looks pretty normal to me.
That picture shows the WD drive above that I have. As you see, there is an empty (and slightly smaller) "slot" between the SATA connectors and the power connector.
I think I misunderstood the power connection to a SATA drive.
Apparently, the Molex power-connector I was referring to (which is in a different place on different drives) is not used, power for the drive coming from one of the SATA connectors.
So I must look for a different explanation why my new WD drive does not seem to be working.
Timothy Murphy wrote on Fri, 07 Feb 2014 23:40:24 +0000:
As you see, there is an empty (and slightly smaller) "slot" between the SATA connectors and the power connector.
That "power connector" is a jumper bay. As Miguel explains the two "L- shaped" things are what gets used for SATA (the short one is data, the long one is power). An old IDE drive would have had a Molex power connector on the right - where you see "nothing" now.
BTw: you *do* realize that naming it "hard disk geometry" implies something very different to the reader?
Kai
On 2/7/2014 16:40, Timothy Murphy wrote:
my HP SuperMicro drive-bay.
SuperMicro is OEMing for HP now?
In this the power connector(s) are in the same position as the empty slot above,
The 4 pins next to the SATA data connector on the Seagate drive are nonstandard. Their purpose is not documented in Seagate manual: http://goo.gl/t2lncu
I doubt they are some kind of secondary power connector. Far more likely are a programming header, a debug port, an auxiliary feature output (e.g. drive activity LED), a configuration jumper...
(Unfortunately I cannot provide a photo at the moment, as both my Android phone and my camera are out of action.)
No need. The Newegg page shows the connectors clearly:
http://www.newegg.com/Product/Product.aspx?Item=N82E16822148451
If this is a standard SATA enclosure, only the two keyed edge connectors need to be used, as Kai says.
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Kai Schaetzl -
Tim Evans -
Timothy Murphy -
Warren Young