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回复 3楼 lianyong 的帖子
This book covers Informix internal disk infrastructure ( ISAM layer ). The ISAM layer is same with IDS 7.x and IDS 9.X, it didn't be changed too much. There might be a little difference in page header for IDS9.4 when the large chunk size ( > 2G) feature is turned on. Internally, it is mandatory reading for advanced support engineer. If you wanna something in detail and low level about Informix disk structure ( page, table, table space, index, reserve pages ... ), it is still worth reading. |
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