Abstract: Apparatus, methods, and other embodiments associated with providing front end intelligence for monitoring back end state are described. One example method includes controlling a first entity to request that a second entity perform a multi-state stateful operation (e.g., file create). The method includes receiving notice from the second entity that the stateful operation has attained a first state (e.g., partial file create complete) and, upon receiving the notice, maintaining, at the first entity, information (e.g., sequence number, metadata) associated with the stateful operation. The method also includes, upon receiving notice that the second entity lost state before the stateful operation attained a second state, selectively providing to the second entity a portion of the information maintained at the first entity, and upon receiving notice from the second entity that the stateful operation has attained the second state, terminating maintaining the information associated with the stateful operation.

Abstract: Apparatus, methods, and other embodiments associated with providing front end intelligence for monitoring back end state are described. One example method includes controlling a first entity to request that a second entity perform a multi-state stateful operation (e.g., file create). The method includes receiving notice from the second entity that the stateful operation has attained a first state (e.g., partial file create complete) and, upon receiving the notice, maintaining, at the first entity, information (e.g., sequence number, metadata) associated with the stateful operation. The method also includes, upon receiving notice that the second entity lost state before the stateful operation attained a second state, selectively providing to the second entity a portion of the information maintained at the first entity, and upon receiving notice from the second entity that the stateful operation has attained the second state, terminating maintaining the information associated with the stateful operation.

Abstract: Example apparatus, methods, and computers facilitate improving spatial locality of file system block allocations for related items. One example method includes accessing a block allocation request that is configured to control a computer to allocate a block of storage available on a storage device and, upon determining that the block allocation request includes a session key that identifies a session associated with a block reservation pool, controlling the computer to allocate a block of storage from the block reservation pool to satisfy the block allocation request rather than allocating a block of storage from generally available blocks of storage. The block reservation pool includes blocks of storage on the storage device that satisfy a spatial locality relationship determined by a pre-read technique associated with the storage device.

Abstract: Example apparatus, methods, and computers facilitate improving spatial locality of file system block allocations for related items. One example method includes accessing a block allocation request that is configured to control a computer to allocate a block of storage available on a storage device and, upon determining that the block allocation request includes a session key that identifies a session associated with a block reservation pool, controlling the computer to allocate a block of storage from the block reservation pool to satisfy the block allocation request rather than allocating a block of storage from generally available blocks of storage. The block reservation pool includes blocks of storage on the storage device that satisfy a spatial locality relationship determined by a pre-read technique associated with the storage device.