Invista ICRV path will dissapear when runnning FW upgrade on CX-380

Currently running an Invista (Version 2.3 ... 23.01.2.00.0.007) ICRV volumes on 2 CX3-80's in two different buildings.

Buildings are connected with CWDM and connected at 4Gb/s in dual redundant fabrics.

CPC 1 is connected on one fabric and CPC 2 is connected on the other.

Since Invista CPC does not have multipathing software native, the CPC's can only be mapped to one of the SPA/B ports.

Just wondering what will happen to Invista while the path to one of the ICRV's dissapears.

Logically, the secondary ICRV will remain active at all times since only the CX3-80 which holds the primary needs an upgrade.

Also, I'm putting the maximum delay time between the SPA/B reboots of 18 minutes so both paths should be back to visible before the SPB performs it's upgrade and then reboots. ICRV should show as degraded since one of the paths goes missing for a short time, but should still mainitain it's integrity.

Having said all that, anyone out there actually perform this without incident.

Cheers