Cache writeback with RDB datastore

Anyone used the cache=writeback for RBD images? Just would like to get some feedback about the performance and reliability.

According to CEPH documentation, cache=writeback will enable rbd_cache=true which support to improve performance.

Ref: http://ceph.com/docs/master/rbd/qemu-rbd/

1 Like

We don’t have any experience with that. If you run some tests, please do share the benchmarks :smile:

1 Like