[rrd-users] rrd + zfs compression = massive space savings

[Steven Hartland]

Just wanted to share our experience with using zfs compression
on FreeBSD for our rrds.

We're seen a fantastic 21.41x compression ratio on our 46k rrds
stored on a zfs volume compressed with gzip. This means meaning
we're saving 93GB of space by doing this :)

The gzip compression is CPU heavy so if you want to use this
you need a good amount of CPU available but if your short on
IO throughput which tends to be the case when updating this
many rrds it also a great way to improve performance.

    Regards
    Steve

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