Virtualization

IBM Virtualization Engine TS7700 Series Best Practices: Cache Management in the TS7720 V1.2

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Executive Summary

Similar to the TS7740, whose capacity is limited by the number of physical tapes, the TS7720's capacity is limited by the size of its cache. The customer in both cases needs to manage keeping the amount of data stored below the limits imposed by the number of physical tapes or cache size. The intent of this document is to make recommendations for managing the cache usage in the TS7720. It details the monitoring of cache usage, messages and attentions presented as the cache approaches the full state, consequences of reaching the full state and the methods used for managing the amount of data stored in the cache.

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