This sounds like there's a whole other story in the aftremath, would be interesting to hear how they dealt with it (deciding between dropping scenes vs reproducing):

> Jacob admits that about 10% of the film’s files were never retrieved and are gone forever, but they were able to make the film work without the scenes.

Also, this seems to be a second hand rereporting, the linked article has a little more detail (https://thenextweb.com/news/how-pixars-toy-story-2-was-delet...)

It also has the real beef of the story:

> Pixar, at the time, did not continuously test their backups. This is where the trouble started, because the backups were stored on a tape drive and as the files hit 4 gigabytes in size, the maximum size of the file was met. The error log, which would have told the system administrators about the full drive, was also located on the full volume, and was zero bytes in size.