Added disable_merges Option for Multi-Disk Volume Configuration

Why it matters

This feature allows users to disable background merges on specific volumes in multi-disk setups. It helps in controlling disk I/O and resource usage by preventing merges on designated volumes, which can improve performance and stability in certain use cases.

How to use it

In the ClickHouse server configuration file, within the storage_configuration section defining volumes, set the disable_merges option to true for the desired volume. For example:

<volume>
    <name>volume_name</name>
    <path>/path/to/volume/</path>
    <disable_merges>true</disable_merges>
</volume>