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[Michael Leinartas <question200512@xxxxxxxxxxxxxxxxxxxxx>]

Question #200512 on Graphite changed:
https://answers.launchpad.net/graphite/+question/200512

    Status: Open => Answered

Michael Leinartas proposed the following answer:
storage-aggregation.conf works similarly to storage-schemas.conf where
it's only used when new metrics are created (since that's when these
parameters are set). You can change the xFilesFactor of existing metrics
with whisper-resize.py - just pass the same retention you already have.
Unfortunately that data from 30 days out is already gone - the
aggregation for the longer retentions happens at when the original
points are stored so will be influenced by the xFilesFactor and
aggregationMethod parameters existing at that point in time.

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