From the very newest documentation (emphasis added):
"When you migrate a cluster from an earlier version to 5.0.0 or later, the value of maxblocksize stays the same. However, if maxblocksize was set to DEFAULT in the earlier version of the cluster, then migrating it to 5.0.0 or later sets it explicitly to 1 MiB, which was the default value in earlier versions. To change maxblocksize to the default value after migrating to 5.0.0 or later, set maxblocksize=DEFAULT (4 MiB)."
So a migrated cluster will have its maxblocksize changed from "Default" to explicitly be "1 Mib", because "Default" now means "4 MiB".
Carl Zetie
Offering Manager for Spectrum Scale, IBM
(540) 882 9353 ][ Research Triangle Park

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