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Status Delivered
Workspace IBM Spectrum Virtualize / FlashSystem
Created by Guest
Created on Apr 22, 2013

RELATED IDEAS

Default setting for EasyTier should be "On" rather than "auto"

See this idea on ideas.ibm.com

By default, Easy Tier is set to "auto" which means that when SSDs are added to a pool, at that point a dpa_heat file is created and data migration takes place.

The dpa_heat file can be used in conjunction with the Storage Tier Advisor Tool to determine how much SSD is in use, by which volumes and how many GB of hot data a system has (useful to know if there is more hot data than SSD capacity).

In cases where customers don't have SSD, they don't have a dpa_heat file and can't use STAT until they have switched on EasyTier from the CLI.

Why not just have the EasyTier default as "On" so that a heatmap is available for all pools when you want to investigate?

Idea priority Medium
  • Guest
    Reply
    |     Jun 12, 2015

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - Storage
    Product - IBM Storwize V7000, V5000 and V3000

    For recording keeping, the previous attributes were:
    Brand - Tivoli
    Product family - Storage
    Product - IBM Storwize V7000, V5000 and V3000

  • Guest
    Reply
    |     Jul 23, 2014

    Fixed in 7.3, by changing what "auto" does (includes rebalancing and creating the dpa_heat file also)

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