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On Sat, 6 Jul 2024 06:15:56 -0000 (UTC), Stephen Fuld wrote:No. The problem was that the PDS search was a linear search of records on the disk drive i.e. typically multiple disk revolutions), and furthermore, it required (until the fast PDS search came along) that the host channel take action on each disk record checked, even the ones that didn't match, including resending the search argument to the disk controller.
As you posted below, the whole PDS search stuff could easily be aWould locate mode have helped with this?
disaster. Even with moremodest sized PDSs, it was inefficient has
hell.
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