2 points
If you have sufficient outage that paychecks don’t get cut… it will turn mission critical pretty fast.
3 points
*
You’re not going to have a multiple-day outage. At most, it’ll be a few hours.
If your company isn’t printing out paycheques and payroll advices at least a day before payday, and is instead waiting until the last minute, that represents an organisational failure, not a technical one.
Edit: And don’t forget… the manager can always write the cheques by hand on a paper chequebook.