On 06/22/12 17:52, Moger, Babu wrote: > One concern, the spec also says.. > ============================== > The unavailable target port asymmetric access state is > intended for situations when the target port accessibility to a logical unit may be severely restricted due to SCSI > target device limitations (e.g., hardware errors). Therefore it may not be possible to transition from this state to > either the active/optimized, active/non-optimized or standby states. > ===================================================== > > What happens if we cannot transition to active/optimized, active/non-optimized or standby states. > Are we going to loop forever? From kernel side it looks ok. We are going mark the path as failed. > It depends on what the path checker from multipath is going to do. Do you have any idea about it? Good question. I'm not a multipath expert, but as far as I understand the multipath user space software if activating a path fails after some delay multipathd tries again to find a usable I/O path. Bart. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
