[escimo]

It's been a while since I fired up my B2k.
I remember the unique WWN for FC disks.
If it's a new disk you don't have to format it, but a label may become necessary.
If it's a used disk, maybe the correct disk label is missing?

What's your disk WWN?

What are the output of...
1. OBP
ok probe-scsi
--> are the disk WWN correct?

2. single user node (install DVD/CD) -- here I don't rmember exactly (use docs for clearance)
format> verify
label exists?
format> type
--> choose SUN72G (if it's a real SUN FW ready disk)
-->otherwise choose correct disk geometry
--> you will be asked for labeling the disk if needed

EDIT: maybe same prob as with this tread?
https://forums.irix.cc/thread-124-post-791.html#pid791