Flexible Tier

Flexible Tier provides the following functions:

• Automated Storage Tiering

  This function automatically reallocates data according to the data access frequency and optimizes performance and cost.

• FTRP Balancing

  I/O access to a virtual volume can be distributed among the RAID groups in a pool by relocating and balancing the physical areas allocated to the virtual volume.

• TPV/FTV Capacity Optimization

  Data in physically allocated areas are checked in blocks and unnecessary areas (areas where 0 is allocated to all of the data in each block) are released to unallocated areas.

  For details on these functions, refer to TPV/FTV Capacity Optimization.

• Automated QoS

  The QoS for each volume can be controlled by using the ETERNUS SF Storage Cruiser's QoS management option.

  For details on Automated QoS, refer to the ETERNUS SF Storage Cruiser manual.