Reading the datasheet, my interpretation is Seagate has taken a ide drive chassis (7200rpm, PMR, slow seek times, etc) and added a SAS interface board. They mention the sas version offers improved performance over the sata version, and also the sas version supports a dual-port interface. Other more expensive SAS drives take a scsi drive chassis (10-15krpm, GMR, fast seek times) and add the SAS interface board. I guess I'm saying, if you interpret the name "Serial Attached Scsi" literally, then the Seagate ES.2 is not an SAS drive - it is not a scsi drive with a serial interface. However, if you interpret SAS as an interface standard, then the interface board determines what the drive is, more so than its mechanical construction. -Gordon On Fri, Nov 7, 2008 at 12:16 PM, Jerry Franz <jfranz at freerun.com> wrote: > Steve Thompson wrote: >> >> On Fri, 7 Nov 2008, Gordon McLellan wrote: >> >>> I meant SAS; specifically Seagate Barracuda ES.2 drives. Here's a >>> tiny version of their huge url: >>> >>> http://tiny.cc/3X9fI >>> >>> No, they are not the super fast and expensive 15krpm database drives. >> >> Indeed. They're not SAS either. > > From the manufacturer's page: "Barracuda ES.2 SAS 3.0-Gb/s 1-TB Hard Drive" > > Sure sounds like SAS to me. What leads you to believe they are not being > truthful? > > -- > Benjamin Franz > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >