management system and management method of a storage system that performs control based on the performance requirements that are assigned to the virtual volume

摘要

storage system includes a plurality of VVOL (virtual logical volume in accordance with Thin Provisioning) is to manage the associated pool to allocate the one of the tiers in the use Tiapatan associated with the write-destination VVOL the real area (RA) to the write-destination virtual area (VA), and, assigned to the VA performing a rearrangement processing to move to the RA of the different tiers based on access state of RA have the data in that RA and tear with the RA. Management system, assuming the use of the subject VVOL Tiapatan and remove the particular tier, to predict all the other performance of the VVOL associated with the pool of target VVOL and subject VVOL is associated with the predicted performance is determined whether there is less than the requested performance VVOL, Without such VVOL, and instructs to remove the specific tier from the use of the subject VVOL Tiapatan the storage system.