[CentOS] OT hard disk geometry

Mon Feb 10 19:05:38 UTC 2014
Warren Young <warren at etr-usa.com>

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: 

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:


If this is a standard SATA enclosure, only the two keyed edge connectors 
need to be used, as Kai says.