ALUA is type of storage device that is capable of servicing IO to given LUN on two different Storage Processors but in an uneven manner. ALUA is also known as Asymmetric Active/Active Arrays. Active/Active -> Both the Controller ports receives IO Commands to LUN. Asymmetric -> Only one controller which is owning the LUN can issues IO to that LUN.
I will be discussing few more useful Storage Commands widely used in Troubleshooting Storage issues or Configuring & Managing Storage devices in vSphere Environment. These command used to retrieve information about HBA installed on ESXi host.
In this post, I am going to explain one of the most frequently used storage commands help vmware admin to retrieve information particularly about Storage device, Multipathing information about LUN, Queue Depth & Troubleshooting storage issues.