iSCSI Multipath Status Active v.s Active (I/O)

Hi all,

I have recently upgraded VMWare ESXi Host from 5.5 to version 6.0.

Overview about our enviroment:

1 vCenter 5.5 - upgraded to vCenter 6

2 ESXi Hosts (5.5) - being upgraded to ESXi 6 (1 host has been upgraded to ESXi 6)

Obviously, I experienced the issue with installing MEM driver 1.4 via Update Manager (as discussed in other threads). But it was resolved by manually install the MEM driver 1.4.

But after the upgrade, I noticed that the Dell Equallogic path status show 'Active' (on ESXi 6.0) instead of showing 'Active (I/O)' (as on ESXi 5.5).

Not sure if any knows the different between those. I have contacted Dell Equallogic support but they only said it's but a cosmetic issues but should not be worried about.

Could you please advise if you have experience on this?

Path Status on Esxi 5.5

Path status on Esxi 6

Path Selection Policy on ESXi 5.5

Path Selection Policy on ESXi 6