I have built a unRAID server with 3 x 1.5TB Seagate hard drives and all is working fine. (steep learning curve being seems to be getting less steep.)

 

My mother board is a Gigabyte GA-P43-ES3G ICH10 southbridge and 6 x SATA ports. I connected the 3 drives to ports 0,1,2. I have ACHI and NAtive mode enabled.

 

I just bought the pro version of unRAID so I decided to add another Seagate 1.5Tb Drive.  When I attached the new drive the system would not boot when the BIOS got to the AHCI bit so I turned off and unpluged one of the working drives and plugged the new drive into the port I knew was working. When I rebooted it still stalled. So I replaced the working drive and checked everything was stilll working OK which it was. I now went into the BIOS and disabled AHCI and Native mode, now the system boots with the new drive installed so I have 4 working drives.

 

However the new drive does not seem to support AHCI and/or native mode ( I have not checked which) is this something to worry about?

 

Ridley

Does it have the current firmware flashed to it? The drive does not seem to function as it should. I would be concerned about it.

I have 3 x 1.5TB in a UNRAID pro array, all were recognised with ACHI turned on so this is unusual.

 

I haven't had good experiences with the 1.5TB seagates with both the supposed "new good" firmware (CC1H) nor with the old firmware models after upgrade.  Watch the error rates closely as they rack up quickly with little warning.  Off the 3 i purchased in December 2008, 2 have been RMA'd and replaced under warranty, the 3rd is now dead, and one of the replacements (delivered in April 08) is showing 5,000 errors already.  I only use the array for movies, music and photo backup, so not exactly a hard core environment.  Needless to say not impressed with seagate, am now trialling the 1 & 2TB's from WD and so far so good.

 

I would get it RMA's if you can.  PK

I have 3 x 1.5TB in a UNRAID pro array, all were recognised with ACHI turned on so this is unusual.

 

I haven't had good experiences with the 1.5TB seagates with both the supposed "new good" firmware (CC1H) nor with the old firmware models after upgrade.  Watch the error rates closely as they rack up quickly with little warning.  Off the 3 i purchased in December 2008, 2 have been RMA'd and replaced under warranty, the 3rd is now dead, and one of the replacements (delivered in April 08) is showing 5,000 errors already.  I only use the array for movies, music and photo backup, so not exactly a hard core environment.  Needless to say not impressed with seagate, am now trialling the 1 & 2TB's from WD and so far so good.

 

I would get it RMA's if you can.  PK

 

I have 4 of the Seagate ST31500341AS in my array & 6 in my son's array; all without issue. Fastest drive available with the best price/GB. Very happy with the Seagate 1.5TB's.