Original: Checksum features in SQL Server 2005Go from herePage checksum is a new feature of SQL2005 that provides a powerful mechanism for detecting IO damage than torn page detection. The following is a detailed description:Page CHECKSUM:During the
Network checksum Calculation
1. Preface
Checksum calculation is the basic function of NAT and content modification. After performing these operations, you must modify the checksum in the Data header.
2. 16-bit checksum Calculation
2.1 Basic
WHttps://en.wikipedia.org/wiki/Checksumhttps://zh.wikipedia.org/wiki/ChecksumA checksum is a small-sized datum derived from a block of digital data for the purpose of detecting errors which May has been introduced during its transmission or storage.
Check is divided into client checksum server checksum. The client relies primarily on JavaScript code to complete, and server-side verification is done through programming in the program. The client can only prevent normal misoperation to reduce the
The file is possibly before upt. the file header checksum does not match the computed checksum fault solution
Symptom:
1. Press the power button. Sometimes it can be started and sometimes it cannot be started.
2. The error message "the file is
File Checksum MatchingIf you suspect that there may be many files with the same Nevin , instead of comparing all ranks comparisons with cmp or diff , The amount of time that is spent will increase as the number of files increases to the sub-party .
The checksum (checksum) program is used to generate a test and secret key from a file and then use this checksum key to verify the integrity of the file.The specific key used for file integrity testing is called checksums.Checksums are important for
Datanode verifies the data checksum before actually storing the data.
The client writes data to datanode through pipeline. The last datanode checks the checksum.
When the client reads data from datanode, it also checks and compares the checksum
I wrote this blog a long time ago, because it is now moved to cnblogs, and after sorting it out, I will try again.
I have been engaged in computer security/virus-related things (pure learning, do not do evil) for a few years before my work. The PE
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