That's a good point! But this sounds hopeless to take a real consistent snapshot from app perspective unless you shutdown the computer. Right? Thanks. On 7/3/07, Bryan Henderson <hbryan@xxxxxxxxxx> wrote:
> Consistent state means many different things. And, significantly, open/close has nothing to do with any of them (assuming we're talking about the system calls). open/close does not identify a transaction; a program may open and close a file multiple times the course of making a "single" update. Also, data and metadata updates remain buffered at the kernel level after a close. And don't forget that a single update may span multiple files. -- Bryan Henderson IBM Almaden Research Center San Jose CA Filesystems
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