How to Verify Whether a Disk Contains Data ?

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Post by Adrian Mahendrata (thank you)
Before using a new disk in an AIX LPAR, check whether it belongs to a volume group

You’ve just added one new disk to an AIX logical partition (LPAR), and you’re trying to figure out why your new disk has a physical volume identifier (PVID). A PVID indicates that the disk might either be a replicated disk, a disk from an exported volume group, or a new empty disk with a PVID that wasn’t cleared previously. If the disk is either of the first two types, it could have real data on it that you don’t want to overwrite.

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