Dynamic Tiering workflow

The following illustration shows the workflow for setting up Dynamic Tiering on the storage system.

As shown in the illustration, Device Manager - Storage Navigator and RAID Manager have different workflows. This document describes how to set up Dynamic Tiering using Device Manager - Storage Navigator. For details about how to set up Dynamic Tiering using RAID Manager, see the RAID Manager Command Reference and RAID Manager User Guide. Use Device Manager - Storage Navigator to create pools and DP-VOLs.

*Notes:

  1. When you create a pool using RAID Manager, you cannot enable the multi-tier pool option or register multiple media as pool-VOLs. Before making tiers, enable the multi-tier pool option.
  2. Enabling the multi-tier pool option from RAID Manager automatically sets Tier Management to Manual. You must use Device Manager - Storage Navigator to change Tier Management to Auto.

CautionWhen you delete a pool, its pool-VOLs (LDEVs) are blocked, and you must format the blocked LDEVs before using them.
Parent Topic
  • Dynamic Tiering and active flash

    Hitachi Dynamic Tiering (HDT) simplifies storage administration by automatically optimizing data placement in 1, 2, or 3 tiers of storage that can be defined and used within a single virtual volume. Tiers of storage can be made up of internal or external (virtualized) storage, and use of HDT can lower capital costs. Simplified and unified management of HDT allows for lower operational costs and reduces the challenges of ensuring applications are placed on the appropriate classes of storage.