troubleshooting Question

HP SC08Ge Controller Sees 3TB Drive as 2TB

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westes asked on
Server HardwareWindows Server 2008Storage HardwareStorageWestern Digital
19 Comments2 Solutions466 ViewsLast Modified:
We have an HP DL585 G6 server with SC08Ge SAS/SATA JBOD adapter, attached to a Western Digital 3TB SATA drive.    Under Windows 2008 R2 64-bit, the drive is seen as 2TB, EVEN WHEN INITIALIZED AS GPT DISK!    

Online, people who have a 3TB disk get one of two results with Windows 2008 R2 or Windows 7:

* Initialized as MBR, the volume is 2TB, but you see in Disk Management an additional 768MB of unusable space.

* Initialized as GPT, the volume is 2.7TB, all usable.

In our situation, NEITHER of these happens.   Initialized as EITHER MBR OR GPT, the drive is seen in Disk Management as 2TB, and there is NO ADDITIONAL SPACE SHOWN.

Is this a limitation of the DL585 G6 BIOS?  Is there a required BIOS setting?   Is there a setting required on SC08Ge?

We have a SmartArray, and Windows 2008 R2 has no problem seeing 3TB volumes created on the SmartArray as 2.7TB, so this does seem to point to BIOS or controller firmware issues.
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