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IT Interview Questions:What is tombstone lifetime attribute?
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IT Interview Questions:What is tombstone lifetime attribute?
The tombstone lifetime must be substantially longer than the expected replication latency between the domain controllers. The interval between cycles of deleting tombstones must be at least as long as the maximum replication propagation delay across the forest. Because the expiration of a tombstone lifetime is based on the time when an object was deleted logically, rather than on the time when a particular server received that tombstone through replication, an object's tombstone is collected as garbage on all servers at approximately the same time. If the tombstone has not yet replicated to a particular domain controller, that DC never records the deletion. This is the reason why you cannot restore a domain controller from a backup that is older than the tombstone lifetime.
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