6.7

Table Of Contents
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Real-time statistics are collected on hosts and aggregated every 5 minutes. After six data points are
collected for approximately 30 minutes, they are rolled up to the vCenter Server database to create
the 1-Day statistic. 1-Day statistics might not be available for 30 minutes after the current time,
depending on when the sample period began.
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The 1-Day statistics are rolled up to create one data point every 30 minutes. If a delay occurs in the
roll-up operation, the 1-Week statistics might not be available for 1 hour after the current time. It takes
30 minutes for the 1-Week collection interval, plus 30 minutes for the 1-Day collection interval.
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The 1-Week statistics are rolled up to create one data point every two hours. If a delay occurs in the
roll-up operations, the 1-Month statistics might not be available for 3 hours. It takes 2 hours for the 1-
Month collection interval, plus 1 hour for the 1-Week collection interval.
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The 1-Month statistics are rolled up to create one data point every day. If a delay occurs in the roll-up
operations, the statistics might not be available for 1-day and 3 hours. It takes one day for the past
year collection interval, plus 3 hours for the past month collection interval. During this time, the charts
are empty.
Solution
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There is no solution available.
vSphere Monitoring and Performance
VMware, Inc. 115