How to Verify a Lun is in Active/Optimized Mode when ALUA Is Configured on Storage
(Doc ID 2533184.1)
Last updated on MARCH 23, 2022
Applies to:Oracle VM - Version 3.4.5 and later
Linux OS - Version Oracle Linux 6.0 and later
If the Linux server has device-mapper-multipath configured, you can run 'multipath -ll' to list how disks are grouped together. For ALUA mode, you can check if a disk is in the Acitve/Optimized or non-optimized group.
This note, however, is to discuss how to use sg_rtpg command to check the target port group asymmetric access state (aas).
Along with sg_inq command you can check if a specific disk (/dev/sdX) is in Active/optimized group or not.
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