How do you optimize data compression and encryption on mainframes?

1 Why compress and encrypt data on mainframes?

Mainframes store and process massive amounts of data, often from multiple sources and applications, which can include sensitive information such as customer records, financial transactions, or health records. Compressing and encrypting this data offers several advantages, such as saving space and resources by reducing the size of data files and the risk of data breaches. In the process, it improves effeceincy by decreasing the amount of data that needs to be transferred over the network. It can also help mainframes comply with various laws and regulations that mandate the protection of personal data, financial data, or other sensitive information from unauthorized disclosure or misuse.

2 How to compress data on mainframes

Different methods and tools can be used to compress data on mainframes, depending on the type, format, and location of the data. Hardware compression is performed by mainframe hardware such as disk drives or tape drives, and is transparent to software and applications. It can achieve high compression ratios with low CPU overhead, but may not be compatible with all data types or devices. Software compression requires the data to be in a specific format or structure, and may need some changes to the software or application code. It offers more flexibility and control over the compression algorithm, but may also consume more CPU resources. Hybrid compression combines hardware and software compression, optimizing the results and performance while introducing compatibility issues that require coordination and testing.

4 How to optimize data compression and encryption on mainframes

Optimizing data compression and encryption on mainframes requires a holistic approach that considers business needs, technical capabilities, and operational costs. It is important to assess your data to understand its characteristics, such as size, type, format, location, frequency, and sensitivity. This will identify the optimal compression or encryption method, level, and tool for each data set or stream. Test the results to measure the impact on performance, quality, and security. This will verify the compression ratio or encryption strength, as well as the CPU usage, response time, and error rate. Also monitor your environment to detect any changes, issues, or opportunities. This will maintain the efficiency and effectiveness of your compression or encryption strategy. Lastly, update your environment with any new technologies, standards, or regulations.

5 How to learn more about data compression and encryption on mainframes

Data compression and encryption on mainframes are complex and evolving topics that require continuous learning and improvement. To learn more, explore the IBM Knowledge Center, which is the official documentation site for IBM mainframe products and solutions. IBM Redbooks provide in-depth guidance and best practices for various mainframe topics, while IBM Training offers comprehensive and practical courses for mainframe certifications. Finally, the IBM Community is an online platform where you can connect with other mainframe professionals, ask questions, share insights, and join events related to data compression and encryption on mainframes.