1. Does variable FSB block sizing extend to files larger than record size, concerning the last FSB allocated? In other words, for files larger than 128KB, that utilize more than one full recordsize FSB, will the LAST FSB allocated be 'right-sized' to fit the remaining data, or will ZFS allocate a full recordsize FSB for the last 'chunk' of the file? (This is a file slack issue re: how much will exist.) 2. Can a developer confirm that COW occurs at the FSB level (vs. sector level, for example)? In other words, when a single FSB (say 64KB file w/ recordsize=128KB) file is modified, and it's only one sector within that file that's modified, is it correct that what's copied-on-write is the entire 64KB FSB allocated to that file? (This is a data recovery issue.) NICOLE L. BEEBE, Ph.D., CISSP Assistant Professor The University of Texas at San Antonio Department of Information Systems & Technology Management
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