storage vendors increasingly include active-active storage in their
proposals, IT Executives must move beyond a naïve understanding
of what it is, to a deeper understanding of the scenarios under which
it can deliver a benefit, the risks it mitigates, and where is fits
within the overall redundancy and availability architecture.
Since active-active storage typically
comes at a significant additional cost it is important that a
cost/risk/benefit analysis be undertaken to avoid paying an
unnecessary premium that becomes a burden on the business. This
cost/risk/benefit analysis can only be done in the context of the
organisation’s specific application portfolio.