sysutils/diskcheckd needs fixing and a maintainer

[perryh at pluto.rain.com]

Chris Rees <utisoft at gmail.com> wrote:

> We don't want to provide broken software.

Mark Linimon <linimon at lonesome.com> wrote:

> ... it's obsolete, broken, junk ...

Unless there is more to this than is reported in those two PRs,
I'd call it a considerable exaggeration to describe diskcheckd
as "broken".

* http://www.freebsd.org/cgi/query-pr.cgi?pr=ports/115853
  is shown as "closed", so presumably is no longer a problem.

* http://www.freebsd.org/cgi/query-pr.cgi?pr=ports/143566
  says "... diskcheckd runs fine when gmirror is not involved ..."
  and then goes on to describe a problem _when diskcheckd is run
  on a component of a gmirror_.

How anyone got from "in some way incompatible with gmirror" to
"broken" escapes me.  One could as well claim that gmirror is
"broken" because it is incompatible with diskcheckd >:->

I'm currently running diskcheckd on an 8.1 gmirrored system with
config file

  /dev/ad0 * * 8192

-- which should be using about 1/6 of that disk's bandwidth -- and
will see what happens when it reaches the end of the disk (sometime
tomorrow).  So far I have not seen any issues.