long-term preservation. Simple backup 
mechanisms must preserve not only the repository main content, but also the system 
metadata generated by the preservation functions. Repositories need to develop backup plans 
that ensure their continuity of operations across all failure modes. 
5.1.1.3 The repository shall have effective mechanisms to detect bit corruption or loss. 
Supporting Text 
This is necessary in order to ensure that AIPs and metadata are uncorrupted or any data 
losses are detected and fall w