On Wed, 7 May 2014, Gandalf Corvotempesta wrote: > Very simple question: what happen if server bound to the cache pool goes down? > For example, a read-only cache could be archived by using a single > server with no redudancy. > Is ceph smart enough to detect that cache is unavailable and > transparently redirect all request to the main pool as usual ? This would make sense only for the readonly cache mode, where the cache version will be identical to the base pool version. Right now the answer is no--it's not smart enough to do that. In general, you want to have redundancy in the cache pool, too, so that you can tolerate disk and node failures in the cache. sage
 |