At this time, I don’t have access to an array that supports an explicit ALUA-only mode. However, the log from such an array would show the value of the TPGS field as dos.

Identifying ALUA Devices’ Path Condition

The next thing from inside the problem solving will be to choose the state of the trail otherwise pathways towards the ALUA unit. (We security the information from multipathing when you look at the A bankruptcy proceeding.) Within this point, I direct you tips identify the road states. Shape 6.17 reveals productivity regarding following command:

TPG_condition-As in the output of the device list, this matches the value equivalent to the previous field, Category State (for example, AO or ANO).

RTP_id-This is the relative target port ID, the port ID from which the inquiry response was sent to the initiator. The vital product data (VPD) included in this string includes the relative target port ID. So, with two paths per HBA in this example, two inquiry strings were received by each HBA. The first, on vmhba2, came from RTP ID 13, and the second came from RTP ID 5. In contrast, on vmhba3, the first inquiry string was received from RTP ID 14, and the second was received from RTP ID 6.

RTP_health-This is the health status of the RTP. It can be either Upwards or Off. (more…)