Applications and data servers to dimension, acquire, administrate, maintain, update, and repeat all this cycle from time to time.
Operational systems and database managers, their acquisition, and permanent, hard, and costly updates.
Buying new servers when your company grows, demanding more computational power, even before the ones recently acquired are depreciated; don’t worry about the costs of infrastructure idleness, in case there is no decrease of need for this power.
Safety of your data installation, with periodic backups, recovery of environments or data.
Manage your database, with the constant adjustments, need of monitoring, and assessment of your performance, which demand specialized professionals of high-cost, besides being hard to find.