Fujitsu MBC2073RC Manual Do Utilizador

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Sense Data and Error Recovery Methods 
 
374 
C141-C013 
• 
Since the command stack feature exists (see Section 2.4), even if the HDD 
accepts a command normally, if a command issued by another INIT is being 
executed, or if there are other commands in the stack, execution of the 
command is caused to wait until all the other commands have been processed.  
The execution wait time is dependent upon the type of command issued by 
the other INITs and the contents of its specifications. 
• 
If the HDD has executed error recovery processing (retried) for an error that 
occurred on the SAS I/F or in the disk drive, command completion time will 
be longer than normal. 
6.2.2  Sense data analysis and error recovery methods 
The INIT can judge the procedure for error recovery by analyzing the contents of 
the sense data.  Table 6.5 the classifications of error information displayed in the 
sense data are shown and in Table 6.6, the procedures for error recovery 
recommended for the INIT to execute are shown.  The error recovery procedure 
which can be executed by the INIT will differ depending on the system's 
condition, so the optimum processing procedure should be selected for the user 
system with reference to the following descriptions.