This lab looks into the ASM disk header section that contain the Partnership and Status Table, the PST.
I have found in some limited occasions, specially following storage crashes that result in problems to mount the ASM disk groups, that looking into the PST may help to clarify the extent of the damage and asses if we need to go for a backup or not.
The lab can be found on this document:
Looking into PST Metadata
Note that when reading the Metadata to seee the PST you must add to the kfed command the parameter "aunum = 1", that is written in the guide but is not clear enough.
