2 Comments on “which level?”

1. skn says:

   April 14, 2015 at 8:57 am

   Ref: http://www.redbooks.ibm.com/abstracts/redp4667.html?Open

   
   
   
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2. rumpledforskin says:

   June 28, 2015 at 7:17 pm

   Extent level

   http://www.redbooks.ibm.com/redpapers/pdfs/redp4667.pdf

   Automatic Mode optimizes storage performance and storage economics management
   automatically across drive tiers through data placement on a subvolume level in multi-tier
   or hybrid extent pools.
   Multi-tier
   or
   hybrid extent
   pools are storage pools that contain a
   mix of different drive tiers. Easy Tier can nondisruptively relocate data at extent level
   across different drive tiers or even within the same drive tier to optimize performance and
   resource usage. The auto-reba
   lance capability automatically
   rebalances the workload,
   even across the physical resources within a drive tier, which reduces the occurrence of
   hotspots.

   
   
   
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