1 research outputs found
Uptime-Optimized Cloud Architecture as a Brokered Service
Enterprise workloads usually call for an uptime service level agreement (SLA)
at the pain of contractual penalty in the event of slippage. Often, the
strategy is to introduce ad-hoc HA (High Availability) mechanisms in response.
Implemented solutions that we surveyed do not mathematically map their
availability model to the required uptime SLA and to any expected penalty
payout. In most client cases that we observed, this either resulted in an
over-engineered solution that had more redundancies than was required, or in an
inadequate solution that could potentially slip on the system uptime SLA
stipulated in the contract. In this paper, we propose a framework backed by a
model, to automatically determine the HA-enabled solution with the least TCO
(total cost of ownership) for a given uptime SLA and slippage penalty. We
attempt to establish that our work is best implemented as a brokered service
that recommends an uptime-optimized cloud architecture.Comment: Published in the Proceedings of the 2017 47th Annual IEEE/IFIP
International Conference on Dependable Systems and Networks Workshop (DSN-W