Guidelines for pools when accelerated compression is enabled

You must follow specific guidelines for sizing, creating, and maintaining a pool that uses LDEVs carved from parity groups with accelerated compression enabled.

Parent Topic

• Provisioning

  The advanced provisioning software products and features of the storage systems enable you to implement the appropriate provisioning strategies for your operational environment and improve performance and capacity utilization. Dynamic Provisioning allows you to reserve virtual storage capacity based on anticipated future capacity needs using virtual volumes instead of physical disk capacity, providing lower initial cost, greater efficiency, and ease of storage management.

Child Topics

• Checking whether accelerated compression can be enabled
• Estimating required FMC capacity

  To create or expand a pool that uses LDEVs carved from accelerated compression-enabled parity groups, you must first estimate the required FMC capacity. The Hitachi Data Reduction Estimation Tool enables you to estimate the amount of FMC capacity to install for a new pool or when expanding an existing pool.

• Creating parity groups, LDEVs, and pools with accelerated compression

  After you have confirmed that the Saving % on used pool capacity is sufficient, you can create accelerated compression-enabled parity groups, LDEVs, and pools.

• Monitoring the pool capacity
• Estimating FMC capacity when pool capacity is insufficient

  If the pool capacity or physical pool capacity is insufficient, use the following workflow to estimate the capacity to be added.

• Disabling accelerated compression on a parity group