On 3/12/26 1:16 AM, Brian Bunker wrote:
For ALUA-capable storage arrays, multipath-tools currently uses TUR (Test Unit Ready) as the default path checker while a separate prioritizer determines ALUA state. When sysfs provides ALUA state (the common case), no RTPG command is needed for priority. However, if sysfs is unavailable or detect_prio is off, the prioritizer issues RTPG, resulting in two SCSI commands per path check cycle: TUR + RTPG.
prio/checker changes should be documented in multipath/multipath.conf.5.in Thanks.
