Assessments - The Practice of Cloud System Administration - page 437

• Is there an inventory of the machines and servers used in this service?
• How is the inventory kept up-to-date?
• How would you know if something was missing from the inventory?
• If there is a corporate standard practice for this OR, what is it and how does this
service comply with the practice?
Level 1: Initial
• Performance and utilization are not consistently measured.
• What is measured depends on who set up the systems and services.
• Resource efficiency is not measured.
• Performance problems often come as a surprise and are hard to diagnose and re-
solve because there is insufficient data.
• Inventory is not up-to-date.
• Inventory may or may not be updated, depending on who is involved in receiving
or disposing of items.
Level 2: Repeatable
• All metrics relevant to performance and utilization are collected across all systems
and services.
• The process for bringing up new systems and services is documented and everyone
follows the process.
• Systems are associated with services when configured for use by a service, and
disassociated when released.
• Inventory is up-to-date. The inventory process is well documented and everyone
follows the process.
Level 3: Defined
• Performance and utilization monitoring is automatically configured for all systems
and services during installation and removed during decommission.
• Performance targets for each service are defined.
• Resource usage targets for each service are defined.
• Formulas for service-oriented performance and utilization metrics are defined.
• Performance of each service is monitored continuously.
• Resource utilization of each service is monitored continuously.