I need clarified two parts of the SCSI-2 specification. Section "8.3.3 Mode parameters", paragraph right after "Table 93 - Mode parameter block descriptor", the last sentence states: "A unit attention condition (see 7.9) shall be generated when any block descriptor values are changed." UNDERSTANDING 1: To me this means "Generate a unit attention when block descriptor values are changed. Always. For all initiators. All of them." Section "7.9 Unit attention condition" describes the events which generate a unit attention condition. Event "b)" states: "b) The mode paramters in effect for this initiator have been changed by another initiator;" Note the terms "this initiator" and "another initiator." UNDERSTANDING 2: To me this means "Generate a unit attention for initiator A (this initiator) if initiator B (another initiator) changed the mode paramters. Initiator B does not need a unit attention because he made the change." Assuming UNDERSTANDING 2 is correct, that would mean that in a one initiator, one target system a unit attention does NOT need to be generated when the one initiator changes mode parameters. But that violates UNDERSTANDING 1 that mode parameter changes always generate unit attention for all initiators. So, finally, my question: is UNDERSTANDING 1 correct or UNDERSTANDING 2 correct or am I not UNDERSTANDING? ;^) Alan - /------------------------------------------ |Alan Dayley www.adtron.com |Software Engineer 602-735-0300 x331 |[EMAIL PROTECTED] | |Adtron Corporation |3710 E. University Drive, Suite 5 |Phoenix, AZ 85034 \------------------------------------------- - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [EMAIL PROTECTED]
