Tangentially reminds me of what happened to the South Korean gov data center [1] where a no-backup ~900TB data center got erased due to a battery fire.

Withno external backups piecing together all the lost functions must havebeen hair raising, and more forensic archeolgy than data recovery.

Last i heard i think they had restored a quarter of the lost services/data.

[1] https://www.intermediagroup.org/south-korea-data-loss/