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Osm2city worldbuild: Difference between revisions
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For storage there are five 4TB HDDs configured in a RAIDZ2 with an effective capacity of just below 12TB. Currently this is more than is needed. | For storage there are five 4TB HDDs configured in a RAIDZ2 with an effective capacity of just below 12TB. Currently this is more than is needed. | ||
As of writing the global osm data in the database has a size of 2.3TB but this requirement can be lowered (with a penalty in runtime) by only importing the required area from the highly compressed .osm.pbf file. With this approach, the initial try worked relativly well on a 1TB HDD with enough headroom. | As of writing the global osm data in the database has a size of 2.3TB but this requirement can be lowered (with a penalty in runtime) by only importing the required area from the highly compressed .osm.pbf file. With this approach, the initial try worked relativly well on a 1TB HDD with enough headroom. There are quite a number of random IOPS which causes some IO wait time, up to 80% of the CPU on my Server so an SSD would certainly benificial for some of the data or as L2ARC. | ||