| 摘要 |
An electronic storage system, such as a file system, may include a storage access routine to store data objects. Data objects stored in the system have an entry in an object index that may be maintained by the storage access routine. The object index includes fault tolerance metadata for each data object that specifies the fault tolerance techniques used in storing a data object, such as a particular RAID level. The fault tolerance metadata maintained for each object allows different data objects to be stored with different fault tolerance techniques on the same storage volume. Additionally, the metadata for a data object may be modified in order to store the object using different fault tolerance techniques. |
