Hi, Jianfei Wang p??e v ?t 27. 08. 2009 v 18:29 +0800: [...] > > > > 2) As I'm not one of the people familiar with TLR, I'd like to better > > understand what this does to failure modes. Specifically, what does > > TLR do when a SCSI error is encountered? Can it lead to an > > "interminable" hang-like condition where the transport driver > > continues retrying a failed SCSI command indefinitely? > How the retransmission happen are specified in the TLR documents > (SAS1R10 and SAS2R16). This transmission is handled in the firmware of > the HBA and tape device, according to the SAS specification, not in the > HBA driver or the target driver. That's why this document focuses on the > negotiation process. Once the negotiation is done, everything else is > performed through the firmware.
Any documented way to disable negotiation of this feature by administrator? Best regards, Milan
