Fujitsu MAT3300FC 사용자 설명서

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1.11   Enclosure Service Interface (ESI) 
 
C141-C008 
1-99 
1.11   Enclosure Service Interface (ESI)  
Enclosure Service Interface provides the protocol defining the information 
between the enclosure and the drive. 
The drive starts to execute Enclosure Service when the drive receives “Send 
Diagnostic” command or “Receive Diagnostic Result” command with Enclosure 
Service page specified. 
a) SFF8045 
Two modes in SFF8045 exist, which are Without Parallel ESI and With 
Parallel ESI. 
SFF8045 w/o Parallel ESI only includes the function that the enclosure 
provides SEL_ID defined in FC-AL to the drive. 
On the other hand, SFF8045 with Parallel ESI provides an additional 
function that the drive can read the status from the enclosure. 
b) SFF8067 
This mode covers SFF8045 function and has a purpose for diagnostics and 
receiving the status of the enclosure in the next manner. 
The drive receives Send Diagnostic command from the initiator. 
Then the drive transmits the page specified in Send Diagnostic command to 
the enclosure. 
The drive receives Receive Diagnostic Result command from the 
initiator. 
Then the drive receives the page specified in Receive Diagnostic Result 
command from the enclosure. 
1.11.1  Data transfer protocol 
When powered on, the enclosure operates as SFF8045 w/o Parallel ESI and 
provides SEL_ID to the drive. 
The communication starts upon receiving Send/Receive Diagnostic command as 
described in Figure 1.55.