The INFORMATION_SCHEMA INNODB_BUFFER_PAGE Table • POOL_ID • BLOCK_ID • SPACE • PAGE_NUMBER • PAGE_TYPE The buffer pool ID. This is an identifier to distinguish between multiple buffer pool instances. The buffer pool block ID. The tablespace ID; the same value as  INNODB_TABLES.SPACE . The page number. The page type. The following table shows the permitted values. Table 26.4 INNODB_BUFFER_PAGE.PAGE_TYPE Values 4842 Page Type Description ALLOCATED Freshly allocated page BLOB Uncompressed BLOB page COMPRESSED_BLOB2 Subsequent comp BLOB page COMPRESSED_BLOB First compressed BLOB page ENCRYPTED_RTREE Encrypted R-tree EXTENT_DESCRIPTOR Extent descriptor page FILE_SPACE_HEADER File space header FIL_PAGE_TYPE_UNUSED Unused IBUF_BITMAP Insert buffer bitmap IBUF_FREE_LIST Insert buffer free list IBUF_INDEX Insert buffer index INDEX B-tree node INODE Index node LOB_DATA Uncompressed LOB data LOB_FIRST First page of uncompressed LOB LOB_INDEX Uncompressed LOB index PAGE_IO_COMPRESSED Compressed page PAGE_IO_COMPRESSED_ENCRYPTED Compressed and encrypted page PAGE_IO_ENCRYPTED Encrypted page RSEG_ARRAY Rollback segment array RTREE_INDEX R-tree index SDI_BLOB Uncompressed SDI BLOB SDI_COMPRESSED_BLOB Compressed SDI BLOB SDI_INDEX SDI index