Loads of "wrong magic number" disk errors in /var/adm/messages

If you're getting lots of the "wrong magic number" on your console:

Jun 29 20:38:11 HOSTNAME scsi: [ID 107833 kern.warning] WARNING: /scsi_vhci/disk@g5000c50017c1704b (sd33):

Jun 29 20:38:11 HOSTNAME Corrupt label; wrong magic number
Jun 29 20:38:11 HOSTNAME scsi: [ID 107833 kern.warning] WARNING: 

Then you might want to try labeling the disk in format. Worked for me. They were gatekeeper disks from the SAN so I wasn't too worried about the data on them but if you are (I'm not sure how labeling affects data), you might want to follow this dude's procedure (I haven't tried it): http://unix.lofland.net/2011/06/30/corrupt-label-wrong-magic-number-errors/