This procedure is performed only during disk-space initialization. After shared-memory structures are initialized, the database server begins initializing the disk. The database server initializes all the reserved pages that it maintains in the root dbspace on disk and writes PAGE_PZERO control information to the disk. For more information about PAGE_PZERO, refer to the information on reserved pages in the disk structures and storage chapter of the IBM Informix: Administrator's Reference.
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