pvcreate: man page should list dataalignment default

[Matt Taggart]

Tomas Pospisek writes:
> Matt Taggart wrote on 24 Mar 2011:
> 
> > [snip]
> > The vgcreate(8) man page does list a default of 4 MB for
> > --physicalextentsize but does it really use that as the default always
> 
> FWIW: it does as of lvm 2.02.95-8/wheezy
> *t

OK, so 
1) pvcreate(8) still needs to list defaults for --dataalignment and 
--dataalignmentoffset

2) without going into too much specifics about tuning, I think the 
vgcreate(8) man page should probably mention something like

  "physicalextentsize should be equal to or larger than, and a multiple of 
the PV dataalignment setting"

but someone who understands the tuning issues can probably improve on the 
above.

Thanks,

-- 
Matt Taggart
taggart at debian.org