System and Method to Isolate Passive Disk Transfers to Improve Storage Performance

摘要

A storage system includes a storage controller, a storage array coupled to the storage controller, and a temporary storage device coupled to the storage controller. The storage array is operated as a redundant array of independent drives (RAID) array and includes a high priority storage volume and a low priority storage volume. The storage controller stores high priority data transfers on the high priority volume, stores low priority data transfers on the temporary storage device, and moves the low priority data transfers to the low priority volume in response to a condition of the storage system.