Using foster slice strategies for increased power efficiency
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United States of America Patent
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Aug 15, 2017
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N/A
app pub date -
Nov 4, 2016
filing date -
Dec 29, 2009
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Abstract
A method for a dispersed storage network (DSN) begins by selecting a first subset of storage units for temporary deactivation based on a write threshold number. The method continues by issuing a request message to temporarily deactivate the selected first subset storage units as deactivated storage units and, while the first subset of storage units are deactivated, maintaining a write threshold number of encoded data slices for each set of encoded data slices of data in remaining storage units and detecting, as new data is stored to the remaining storage units, a storage imbalance between the remaining storage units and the deactivated storage units. The method continues by selecting a second subset of storage units for temporary deactivation, issuing a request message to the deactivated storage units to reactivate the deactivated storage units as reactivated storage units, facilitating storage rebalancing and temporarily deactivating the second subset of storage units.
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