What does --pesize=32768 means?

Rodrique Heron swygue at rodhouse.org
Wed May 20 14:50:10 UTC 2009


On Wed, May 20, 2009 at 10:40 AM, Bryan J Smith <bjs at redhat.com> wrote:

> On Wed, 2009-05-20 at 10:36 -0400, Bryan J Smith wrote:
> > Physical Extents (PE) are 32KiB:
> >
> http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/Installation_Guide-en-US/s1-kickstart2-options.html
> >   "--pesize= — Set the size of the physical extents"
>
> Or is that in sectors?
> So 32768 would actually be 16MiB (assuming 512 bytes/sector)?
> The Kickstart manual isn't clear on that.
>
> -- Bryan
>
> P.S.  Am I correct in assuming that the 65534 number of extents limit
> per logical volume (LV) is a 32-bit limitation?  Or it is absolute
> (64-bit too)?


Thanks Bryan, this was the answer I was looking for. I should have asked the
question a better way. I know that pesize means physical extents, but I
wasn't sure where the 32768 number came from. If its indeed in 512 bytes,
then it makes perfect sense.

Thanks again
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