Since Redis 1.1 (currently in beta - don't use it in production for now) there is a new append-only journal storage system alternative to the main one (that is,

Since Redis 1.1 (currently in beta - don't use it in production for now) there is a new append-only journal storage system alternative to the main one (that is, snapshotting), so starting from 1.1 Resque will be more reliable as well if needed, because in this new (optional) configuration Redis can't lose data. It's also possible to configure if it should fsync() never, everysec, or after every write. It's up to you to select the tradeoff between speed and safety :)