Each collection interval has a default collection level that determines the amount of data gathered and which counters are available for display in the charts. Collection levels are also referred to as statistics levels.
Level | Metrics | Best Practice |
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Level 1 |
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Use for long-term performance monitoring when device statistics are not required. Level 1 is the default Collection Level for all Collection Intervals. |
Level 2 |
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Use for long-term performance monitoring when device statistics are not required but you want to monitor more than the basic statistics. |
Level 3 |
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Use for short-term performance monitoring after encountering problems or when device statistics are required. Because of the large quantity of troubleshooting data retrieved and recorded, use level 3 for the shortest time period (Day or Week collection interval). |
Level 4 | All metrics supported by the vCenter Server, including minimum and maximum rollup values. | Use for short-term performance monitoring after encountering problems or when device statistics are required. Because of the large quantity of troubleshooting data retrieved and recorded, use level 4 for the shortest amount of time. |