Planet Ceph

Aggregated news from external sources

February 5, 2019

Comparing two Ceph CRUSH maps

Sometimes you want to test if changes you are about to make to a CRUSH map will cause data to move or not. In this case I wanted to change a rule in CRUSH where it would use device classes, but I didn’t want any of the ~1PB of data in that cluster to move. … Continue reading Comparing two Ceph CRUSH maps

Source: widodh (Comparing two Ceph CRUSH maps)