The vibrant characteristics of multipathing and failover requires the mobility of controlling and regulating an ALUA TPGa€™s AAS

The vibrant characteristics of multipathing and failover requires the mobility of controlling and regulating an ALUA TPGa€™s AAS

The reverse is true for TPG with That is, really AO for LUN 2 and ANO for LUN 1.

On some active/passive ALUA-capable arrays, you might read slot groups with a€?Standbya€? AAS instead of a€?ANOa€? from the non-owner SP.

Asymmetric Accessibility Condition

Ports in an ALUA TPG tends to be in the same AAS always pertaining to a given LUN. The TPG’s AAS include reported into initiators as a result into the REPORT TPGS demand. The TPG descriptor is reported in byte 1 of the impulse.

Transitioning-The TPG AAS is in the process of changing in one county to some other. For instance, if the SP of an AO TPG has been rebooted or is taken traditional, or if the SAN (storage space community) admin by hand moves LUN control (on EMC CLARiiON, that is known as trespass), the AAS with the TPG regarding the different SP modifications to AO. Sigue leyendo