I am playing with Ceph Luminous and getting confused information around usage of WalDB vs RocksDB. I have 2TB NVMe drive which I want to use for Wal/Rocks DB and have 5 2TB SSD's for OSD. I am planning to create 5 30GB partitions for RocksDB on NVMe drive, do I need to create partitions of WalDB also on NVMe drive or does RocksDB does same work as WalDB plus having metadata on it? So my question is do I really need to use WalDB along with RocksDB or having RocksDB only is fine?
wal should be on your fastest drive. If your fastest drive is nvme - place it here.
You can't use bluestore without wal or db, it's not a toy. k _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
