Thresholding task control blocks for staging and destaging
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United States of America Patent
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Jan 16, 2018
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app pub date -
Apr 26, 2017
filing date -
Aug 5, 2013
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Abstract
For thresholding task control blocks (TCBs) for staging and destaging, a first tier of TCBs are reserved for guaranteeing a minimum number of TCBs for staging and destaging for storage ranks. An additional number of requested TCBs are apportioned from a second tier of TCBs to each of the storage ranks based on a scaling factor that is calculated at predefined time intervals. The scaling factor is multiplied by a total number of a plurality of requests from each of the storage ranks for the TCBs from the second tier of TCBs for determining a maximum number of the TCBs to be allocated to each of the storage ranks.
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