GOAL OR METRIC: Begin Refreshing After Three Years
RATIONALE: Analyst firm IDC recently issued a report that documents the risks of using old storage hardware, expressed as the amount of unplanned (failure) downtime per year. The report says that 7-year old storage averages 35 hours of unplanned downtime. Since data is the lifeblood of most organizations, a 35 hour window can represent a minor annoyance or a catastrophic occurrence. There are a lot of ways to reduce this: Data backup is the major one. But preventing unplanned downtime before it occurs can be achieved by systematically replacing old hardware after three years.
POTENTIAL RESULTS: Newer, higher performing hardware with automated management (tiering, backup, and archiving), based on an iSCSI backbone can .
SOURCE: IDC: Managing IT Infrastructure Renewal: A Business Framework to Reduce Server and Storage Costs: September 2010