In a multi replica cluster (for example, replica = 3) is safe to set journal on a tmpfs? As fa as I understood with journal enabled all writes are wrote on journal and then to disk in a second time. If node hangs when datas are still on journal (and journal is not on a permanent disk), some data lost could happens. In a multi replica environment, other nodes should be able to write the same datas to disk, right? I this case, using a journal on a tmpfs should be safe enough. I'm missing something? -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html