iSCSI - error recovery .. more basic questions

["chhavi_garg" <chhavi_garg@indiatimes.com>]

Hi all,

  Here are some more basic questions relating to the iscsi error conditions. It would be of great help if these are clarified.

1. In case of connection and session recovery, the draft says that it is implicity for the target to abort/terminate all active tasks. During task reassignment scenario when will the target issue a response with the "Task Still Allegiant" error message as it assumed that all active tasks have already been terminated?

2. Section 6.4 says

"Explicit violations of the PDU layout rules stated in this document are format errors."

How does the receiving party (initiator / target) detect these PDU layout errors? Is an error in format of text parameters an example of format errors? What are the other kinds of format errors? some examples would help

3. When will an initiator issue an ABORT_TASK_SET to the target? Will it based on any error responses / messages received from the target? Will it happen during session or connection recovery? Similarly other commands like CLEAR_TASK_SET, TARGET_WARM_RESET, etc.,

4. What is the basic difference between Connection recovery / reinstatement?

5. What is the basic difference between Session recovery / reinstatement?

6. On Session reinstatement should all the session parameters be negotiated again?

-regards,

Chhavi.

 

 

 

 

 

 

 

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