Bug #7853
Updated by Tom Clegg over 8 years ago
h2. Background
Currently, Data Manager assumes that if two keepstore nodes report the same block B in their indexes, there are two copies of block B stored on two distinct volumes on two distinct nodes. This is not true in the recommended blob storage configuration: multiple keepstore services use a single blob storage volume.
For example, in a blob storage configuration with 8 keepstore nodes sharing a single volume, Data Manager will see 8 copies and consider all blocks to be overreplicated.