Patent ID: 7818531

Claim:
A method for indicating the condition of a storage system having an array of storage devices in which data may be stored using various data storage patterns, the array having a plurality of slots, each slot in the array being associated with an indicator, the method comprising: in a storage manager operably coupled to the array of storage devices, determining, when all of the storage devices are functioning, whether additional storage capacity is recommended based on the amount of unused storage available in each of the array of storage devices and the data storage patterns in these storage devices; and if such storage capacity is recommended, indicating which slot in the array should be populated with additional storage capacity by: setting the indicator associated with a given slot to a first state, if the given slot should be populated with additional storage capacity because the storage system has reached a fail condition in which there is not enough storage space to maintain redundant data storage; setting the indicator associated with the given slot to a second state, if the given slot should be populated with additional storage capacity because the storage system has enough storage space to maintain redundant data storage but is approaching the fail condition; and setting the indicator associated with the given slot to a third state, if the given slot should not be populated with additional storage capacity because the storage system has enough storage space to maintain redundant data storage and is not approaching the fail condition, wherein the indicators are used collectively to indicate the storage system condition.