What action can you take to reduce High Disk Usage in an Appian instance?

Implementing auto-compress for archived processes is a valid action to reduce high disk usage in an Appian instance. When processes are archived, they typically retain a significant amount of data that may not be actively needed for ongoing operations. By enabling auto-compression, the system can significantly reduce the size of the archived data. This is especially useful since it minimizes the amount of disk space occupied by historical process data, which can accumulate over time and contribute to high disk usage.

The implementation of this feature allows Appian to optimize storage efficiency for archived items, thus freeing up disk space and improving overall system performance without impacting the accessibility of the archived processes.

The other options might address related issues but do not directly target the specific challenge of high disk usage stemming from stored process data. Data replication, for example, primarily focuses on ensuring data availability and redundancy rather than reducing disk space. Expanding storage capacity simply provides more space without addressing the existing high usage levels. Increasing the number of application servers might enhance performance and scalability but does not inherently manage or reduce the disk storage used by archived processes.