Hitachi HUS103036FL3800 User Manual

 

Drawing No. Sheet No.  Revision  ６

K6610091

20/43 2005/2/23

 

6.1    Summary of SCSI Controller 

The Ultrastar 10K300 SCSI controller interfaces between the drive and the host 
computer with the Small Computer System Interface (SCSI). 

 
(1) ANSI standard 

The controller supports the SCSI interface that conforms to the ANSI specifications 
shown in section 2. 

 

(2) Compact design 

The controller is embedded within the disk drive. 

 
(3) Fast data transfer rate 

The controller can transfer data via asynchronous mode, Fast-5 synchronous mode, 
Fast-10 synchronous mode and Ultra (Fast-20) synchronous mode. 
The controller can transfer data via Ultra2 (Fast-40) synchronous mode and Ultra160 
(Fast-80) synchronous mode and Ultra320 (Fast-160) synchronous mode, as well as 
above-mentioned transfer mode. 

 
(4) FIFO buffer 

The Ultrastar 10K300 SCSI controller has 8M bytes of FIFO buffer. This data 
buffering feature prevents the SCSI controller from delay during the reconnect 
process and reduces the latency time that is generated by the difference of the data 
transfer rate between media and host. 

 
(5) Automatic error retry 

The controller automatically retries whenever the disk drive encounters errors. 

 

(6) Automatic error corrections 

The controller uses On-The-Fly ECC to automatically correct read   
errors, without latent rotational time. 

 

(7) Parameter save feature 

The controller saves the controller/device parameters (MODE SELECT parameters) 
specified by the host onto the disk drive. The parameters are automatically restored 
at power-on time.