EERPOM-based data management method and device

Abstract

The invention discloses an EERPOM-based data management method. The EERPOM-based data management method comprises the following steps: receiving a storage request of a to-be-stored data item, and judging whether the length of the to-be-stored data item is greater than the set length of EERPOM or not; if the length of the to-be-stored data time is greater than the set length of EERPOM, storing dataof the to-be-stored data item in the set length in reserved storage space; distributing to-be-stored free addresses for the data, which are out of the set length, of the to-be-stored data item; and setting follow-up item address attribute of the to-be-stored data item as to-be-stored free addresses. According to the disclosed data management method, when a certain data format length exceeds the set length of EEPROM, the storage mode of other data does not require to be changed. Meanwhile, EEPROM space does not need to be reserved for each data item, and thus, difficulty on data layout designin the initial stage of system design is reduced. The invention further discloses an EERPOM-based data management device. The technical effect can be achieved.

Description

technical field [0001] The present invention relates to the storage field, and more specifically, relates to an EERPOM-based data management method and device. Background technique [0002] EEPROM (full name in English: Electrically-Erasable Programmable Read-Only Memory, full name in Chinese: full name Electronically Erasable Rewritable Read-Only Memory) is a semiconductor storage device that can be rewritten multiple times electronically. It is non-volatile and is often used to save some important product data, such as the electronic label of the product (including the product type number, manufacturer, serial number, etc.), and the globally unique identifier stipulated in some agreements (such as the wwn used by the FC agreement) can also Save it in EEPROM. [0003] In the prior art, the method of storing data in the EEPROM generally adopts a sequential storage method, and in this method, the data to be stored is stored sequentially in the form of a data offset and a dat...

AI Technical Summary

Problems solved by technology

[0005] The shortcoming of prior art sequence preservation is: when the format of a certain piece of information changes, such as when the length becomes longer and the reserved space is not enough to accommodate the new data format, it is necessary to re-plan all the data stored in the EEPROM, resulting in the loss of previous work. waste, and reserving more than required storage space for each piece of information will inevitably result in waste of space

When a large amount of data is stored in the EEPROM, the storage space adjustment caused by the format change will become extremely complicated, and the complexity is even no less than the reallocation of the EEPROM space

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