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Status Future consideration
Workspace IBM Spectrum Virtualize / FlashSystem
Created by Guest
Created on Jul 24, 2018

RELATED IDEAS

Merged idea
This idea has been merged into another idea. To comment or vote on this idea, please visit SCSI-I-1028 EasyTier Tier priority.

EasyTier migration operation behaviour

See this idea on ideas.ibm.com

During migration from a pool with large number of NearLine drives to a pool with fewer NearLine and SAS, the pool went offline as the migration only targeted migration into the Nearline.

Would make more sense to have the migration into new pools target ALL storage classes for migration and allow easytier to distribute after the move to prevent outages.
When moving from like to like, it doesn't account for newer larger drives at reduced drive counts. Older configuration will likely have larger number of drives at smaller size; moving to fewer larger drives.
There is also a risk moving from a single class pool to a multi-tier pool which can further reduce drive counts/tiers for the specified class you move from.

Idea priority High

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