NetApp FAS SAN ACP disk tray question

[ranj]

Hi

 

This is probably specific for anyone who uses the newer generation of NetApp arrays with the ACP (alternative control path) capability. We currently have a FAS8020 HA model with 2 x DS2246 SAS disk trays and I am just about to add a new SATA DS4246 tray to this.

 

My question is regarding ACP connectivity to the new tray. I have looked at the current configuration and notice that the ACP loop from the last SAS disk tray goes back into the FAS8020 to close the loop as expected. Can I continue the daisy chain from the DS2246 tray to the SATA DS4246 back into the controller? Unlike the SAS cabling there isn’t more than 1 ACP port per controller. So can’t create a new loop from the controllers to the SATA tray.

 

I have installed the new tray and connected the SAS cabling only and can now see the new storage from the controllers but I currently haven't created an aggregate/ volumes yet for the SATA, I will do that once the ACP config is complete.

 

Current config

 

 

Proposed config with new tray

 

 

I know its a long shot as I doubt many have NetApp (the searches I found were limited) but any advice would be appreciated.

 

Thanks