post error 1777

[hassan83]

I have got this error:
post error:1777- Drive array detected proliant drive subsystem error.

the server should reboot but it didnt and i ve seen in the HP PRLIANT INTEGRATER MANAGEMENT LOF VIEW the error mentioned above.

the ADU shows that in the SCSI Port 2, Drive ID 1 there is (Drive Hardware error)

does anyone has an idea on what might be the problem(Drives, SCSI controller...),
the last thing i ve seen on the screen was 'NO SCSI BOOT' and the server was frozen.