Following is the Hard Disk Compatibility table that we have test with 
1.1 version Linux Software.

Disk Server HardDisk Compatibility
Maxtor
    20GB   32049H2 (Not tested yet)
    20GB   92049U4
    20GB   92048D8
    40GB   34098H4 (Not tested yet)
    40GB   94098H6
    40GB   94098U8
    60GB   96147U8
    80GB   98196H8

IBM
    10GB   DTTA-351010
    10GB   DTTA-371010
    20GB   DJNA-352030
    60GB   DTLA-307060
    75GB   DTLA-307075

Quantum
    10GB   Fireball EX
    13GB   Fireball EX  13000AT
    20GB   Fireball EX  20400AT

Fujitsu
   6.4GB   MRC 3064AT
    13GB   MPD 3130AT

Seagate
   6.4GB   ST36422A
     9GB   ST39140A
    13GB   ST13032
    20GB   ST320430

Western Digital
   6.4GB   26400