Hi list, while discussing the snap-schedule module, a feature request for protecting snapshots against deletion came up. This is partly tied to the scheduled pruning, when a user wants to protect an individual snapshot from being pruned. It could however also be used to protect individual snapshots from being accidentally deleted. One proposed interface (thx Lars) would be to implement a new extended attribute on snapshot directories. I like this as an interface as its quiet flexible and could be build upon (by say a mgr module command). Does snapshot deletion involve the MDS? Otherwise older clients not aware might still delete them (like quotas depend on client cooperation) Is a virtual xattr on a virtual directory a bad idea? Other concerns or better ideas? Best, Jan