I honestly think a lot of people don't understand what an SLA is. An SLA is not a guarantee of availability. An SLA is a guarantee of financial compensation. That's it. A provider can have an SLA of 99% and be down for 1 hour every day of the month. Great, you'll get reimbursed, but your users will abandon you.
The only SLA that may be meaningful is a reimbursement of well over 100%. Now the provider has a real financial incentive.
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