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I'm not familiar enough with NFS to know what specific locking issues you may be referencing, but I generally hear that OpenAFS works better with whole-file locks, yes. However, OpenAFS does not work well with byte-range locks across different machines (that is, locking certain byte ranges in a file, as opposed to locking entire files). If you are only ...


Your assumptions are correct. The difference between using a ZVOL and file-backed md(4), from the user point of view, is not that big. Mostly that ZVOL will always be there, and the md disks need to be reattached after reboot. As for growing - both ZVOL and file-backed md disks "grow" automatically, ie are sparse. The geli manual recommends overwriting ...

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