On Thu, 15 May 2014 16:11:46 +0200 Patrik Horník <patrik@xxxxxx> wrote: > Hello, > > I have couple of questions regarding data offset: > > - Current mdadm sets 128 MiB offset apparently for reshaping backup > file. Is it really used by reshape? From which kernel / mdadm version? Yes. Linux 3.5 or there abouts. mdadm 3.3 > > - Is there any other good reason for such big offset? No. But when you typically have a terabyte of more per disc, 128MB isn't very much. > > - Is there a support for specifying data offset when creating array? > In which version of mdadm? What are recommended lower values? Yes. mdadm-3.3. Recommended value is the default. Lowest usable value is the lowest value it will let you use. Why does a 128MB offset bother you? NeilBrown > > Thanks. > > Patrik > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html
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