Which setting might you adjust to reduce network load when saving historical data?

Enabling compression is a crucial setting for reducing network load when saving historical data. Compression algorithms work by reducing the size of the data being transmitted over the network, which means that less bandwidth is consumed during the process of saving data. This is particularly beneficial in environments where large volumes of data are generated, as it can significantly lower the amount of data transferred, leading to faster save times and less congestion on the network.

In contrast, high-availability mode, while useful for ensuring data redundancy and system reliability, does not inherently reduce the network load. Changing the storage node might affect performance or data locality but does not directly contribute to reducing network traffic. Limiting access to administrators might enhance security and management oversight, but it has no impact on the volume of data being transmitted, which is the primary concern when trying to manage network load effectively. Thus, adjusting the compression setting is the best approach for optimizing data transmission and reducing network load.