Fujitsu MBA3147RC User Manual

Page of 439
 
4.1   Control/Sense Commands  
 
C141-C013 
207 
4.1.19  REPORT LUNS (A0)  
 
 
Bit 
Byte 
X'A0' 
Allocation Length (MSB) 
Allocation Length 
Allocation Length 
Allocation Length (LSB) 
10 
11 
 
This command requests that the peripheral device logical unit inventory be sent to 
the application client. 
This command normally operates under the reserve condition (RESERVE or 
PERSISTENT RESERVE). 
The "Allocation Length" should be at least 16 bytes. If the "Allocation Length" is 
less than 16 bytes, the HDD reports the CHECK CONDITION status (ILLEGAL 
REQUEST [=5] / Invalid Field in CDB [=24-00]). If the "Allocation Length" is 
not sufficient to contain the entire logical unit inventory, the device server shall 
report as many logical unit number values as fit in the specified allocation length. 
This shall not be considered an error. 
The device server shall report those devices in the logical unit inventory using the 
format shown in Table 4.33.