Dynamically configuring a storage system to facilitate independent scaling of resources

An apparatus for dynamically configuring a storage system to facilitate independent scaling of resources, the apparatus including a computer processor and a computer memory, the computer memory including computer program instructions that, when executed by the computer processor, cause the apparatus to carry out the steps of:

• detecting a change to a topology of the storage system consisting of different sets of blades configured within one of a plurality of chassis, at least one blade of the different sets of blades having differing storage capacities, the change to the topology including a change in the number of blades in the storage system;
• and
• responsive to detecting the change to the topology of the storage system, reconfiguring the storage system to change an allocation of resources to one or more authorities without replicating any of the one or more authorities, each of the one or more authorities owning a segment of data, wherein the one or more authorities are configured to be identified through a hashing operation performed on the segment of data.

A computer program product for dynamically configuring a storage system to facilitate independent scaling of resources, the computer program product disposed on a non-transitory storage medium, the computer program product including computer program instructions that, when executed by a computer, cause the computer to carry out the steps of:

• detecting a change to a topology of the storage system consisting of different sets of blades configured within one of a plurality of chassis, at least one blade of the different sets of blades having differing storage capacities, the change to the topology including a change in the number of blades in the storage system;
• and
• responsive to detecting the change to the topology of the storage system, reconfiguring the storage system to change an allocation of resources to one or more authorities without replicating. any of the one or more authorities, each of the one or more authorities owning a segment of data, wherein the one or more authorities are configured to be identified through a hashing operation performed on the segment of data.

The computer program product of claim of 15 further comprising computer program instructions that, when executed by the computer, cause the computer to carry out the step of:

• executing an authority on a first set of blades, the authority having control for a range of inode numbers;
• and
• wherein reconfiguring the storage system further comprises executing the authority on a second set of blades.

The computer program product of claim of 15 further comprising computer program instructions that, when executed by the computer, cause the computer to carry out the step of:

• associating storage on a first set of blades with a write group;
• and
• wherein reconfiguring the storage system further comprises associating, in dependence upon a write group formation policy, storage on a second set of blades with the write group.

The computer program product of claim of 15 wherein:

• detecting the change to the topology of the storage system firther comprises detecting that an amount of processing resources within the storage system has changed;
• and
• reconfiguring the storage system further comprises increasing or decreasing an amount of processing resources allocated to one or more authorities.

The computer program product of claim of 15 wherein:

• detecting the change to the topology of the storage system further comprises detecting that an amount of storage resources within the storage system has changed;
• and
• reconfiguring the storage system further comprises increasing or decreasing an amount of storage associated with one or more write groups.

The computer program product of claim of 15 wherein detecting the change to the topology of the storage system further comprises detecting that a utilization of a particular resource has reached a utilization threshold.