My equivalent of this was finding a brand new SAN array had been formatted wrong. It was nearly empty and unused so it would have been a 5-minute job to format

My equivalent of this was finding a brand new SAN array had been formatted wrong. It was nearly empty and unused so it would have been a 5-minute job to format 99% of it and shuffle the in-use 1% around so that the rest can be fixed too. Both the storage vendor tech and I vehemently argued for solving this immediately but were told to “do it later”. I pointed out that “later” would be when it is full and has 10K production users using it 24/7. Hence any reformatting would be a six-month project requiring additional kit for the scratch space needed. Not to mention the risk! I was wrong. It took 12 months.