mlm.arr events

Contributors

mlm.arr.affinity.not.queued

Severity

NOTICE

Description

This message occurs when the current processing of an error event prevents the Asymmetric Logical Unit Access (ALUA) handler from queuing an affinity switch event.

Corrective Action

(None).

Syslog Message

Affinity event %s not queued for LUN %s.

Parameters

event (STRING): Affinity event for asymmetric array.
serialno (STRING): Serial number of the array LUN.

mlm.arr.many.affinity.error

Severity

ERROR

Description

This message occurs when the Asymmetric Logical Unit Access (ALUA) handler encounters too many affinity errors, which might lead to reduced I/O throughput.

Corrective Action

Evaluate the back-end array connectivity for optimal LUN balance across array controllers. Also check for failures reported by the back-end array with regards to ALUA target port group settings. Verify that FlexArray connectivity is done as per best-practice guide.

Syslog Message

Failing cmd %s for LUN %s due to too many affinity errors.

Parameters

cdb (STRING): String containing the opcode byte of the command descriptor block (CDB) that was sent to the device.
serialno (STRING): Serial number of the array LUN.