Homework: Journaling

Read: Journaling the Linux ext2fs Filesystem

Hand-In Procedure

Please write up your answers to the exercises below and hand them in to a 6.828 staff member at the beginning of lecture.

Submit: Mid-way down the left column on page 6, the Journaling paper says "However, until we have finished syncing those buffers, we cannot delete the copy of the data in the journal." Give a concrete example in which removing this rule would lead to disaster.