New dynamic character of multipathing and you will failover necessitates the self-reliance out-of handling and controlling an ALUA TPG’s AAS

New dynamic character of multipathing and you will failover necessitates the self-reliance out-of handling and controlling an ALUA TPG’s AAS

The opposite is true for TPG with this is, it is AO for LUN 2 and ANO for LUN step one.

Toward some effective/passive ALUA-able to arrays, you may want to come across vent organizations having “Standby” AAS instead of “ANO” for the non-holder SP.

Asymmetric Availability Condition

Ports in an ALUA TPG can be in the same AAS at all times with respect to a given LUN. The TPG’s AAS are reported to the initiators in response to the Report TPGS command. The TPG descriptor is reported in byte 1 of that response.

Transitioning-Brand new TPG AAS is within the means of changing in one county to a different. Such as for instance, if your SP from an AO TPG has been rebooted or was drawn offline, or if the fresh SAN (space for storing community) administrator yourself transfers LUN possession (into the EMC CLARiiON, it is labeled as trespass), the fresh new AAS of TPG for the approach SP change to AO. (more…)

Continue ReadingNew dynamic character of multipathing and you will failover necessitates the self-reliance out-of handling and controlling an ALUA TPG’s AAS