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Re: [linux-lvm] Possible to raise Max LV?

On Tue, Feb 27, 2001 at 01:55:05PM -0700, Andreas Dilger wrote:
> Ragnar Kj_rstad writes:
> > What about increesing the [PE size] default, to say 32 MB?
> > 32 MB should be enough for everyone (because of the 2TB limit), and 16
> > MB waste on every PV isn't that bad.
> So says the guy from a company called "Big Storage" ;-).  However,
> I've seen several people who make multiple partitions on a single
> disk, and then turn these into PVs (don't ask me why), so they would
> be wasting 16MB per partition.  Most people will not need 2TB LVs for
> some time to come.  However, if your systems usually have large LVs,
> then it is OK for you to increase the default for your systems.

	I actually intend to for mine sometime later because it reduces
the fragmentation problem.  I know it shouldn't be that big a deal with
4M PEs, but with 32M PEs it'll be even less of a deal.  :-)

	I actually thinking of generally scaling my PEs to around 0.1%
of my total available space on the theory that allocation of finer
grained chunks than that is kinda silly.

	If I weren't working on some stuff of my own, I'd dive in and
see if I could write a defrag utility for LVM.  The part I'm not sure
how I'd handle would be striped LVs.

Have fun (if at all possible),
The best we can hope for concerning the people at large is that they
be properly armed.  -- Alexander Hamilton
-- Eric Hopper (hopper omnifarious mn org http://www.omnifarious.org/~hopper) --

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