v.25.12Improvement

Plain-rewritable disk has its own implementation and

plain-rewritable disk has its own implementation and layout. Let's not base it on top of regular plain disks. #89807 (Mikhail Artemenko).
Introduced an independent implementation and layout for the plain-rewritable disk type instead of basing it on the existing plain disk.

Why it matters

The change aims to provide a dedicated and customized implementation for plain-rewritable disks, which allows for better management and potentially improved performance or flexibility compared to reusing the plain disk implementation.

How to use it

Users can now configure and use the plain-rewritable disk type independently in their ClickHouse storage configurations without relying on the plain disk as a base.