We have inherited an old EVA. I think it's a 4000? It has two HSV200 controllers, 8 disk enclosures, and no switches. It has an annoying habit of randomly dropping fibre links on the disk enclosures, but it is cabled for full redundancy and so far this hasn't been more than an annoyance. Reseating the cable always brings the link back up again.
This time however, two ports on the B loop failed in short order. We have reseated both and the links have come back up as usual, however the Controller Properties screen in Command View still shows the Loop B Operational State as Failed. Clicking the Enable button next to it produces an Operation Succeeded message but nothing changes, it remains failed. Note that all the disks report Loop B State as Good - it only shows as failed on the controllers.
I am worried that if we experience another random link loss on the A loop in this state, we are going to lose access and possibly data. Can anyone suggest how to to get Loop B back again?
Thanks very much.