RESOLVED - at least it looks like it.

About 6 weeks month ago, our support provider assigned a 2nd virtual
processor to this virtual server. The problem has not happened since.

Though the issue was sporadic, we _never_ went anywhere near this long
without it happening at least a couple of times.

On Wed, Oct 10, 2012 at 10:17 AM, Jeff Crosby <jlcrosby@xxxxxxxxxxxxxxxx>wrote:


We have 10 thin clients running RDP to a virtual server, RDS. RDS is
running Windows Server 2008 R2 Standard x64, has 10gb memory, and the C:
drive is 255gb, using 34gb. The thin clients are XP embedded from 10ZiG.
RDS has no domain controller responsibilities, whatsoever. It's only
function in life is to serve the thin clients.

Every so often the thin client users experience a slowdown because the
server, RDS, is busy doing . . . something. What that "something" is, is
the unknown. The thin client sessions, for all practical purposes, come to
a complete stop. Then, 5-10 minutes later, everything is fine and away we
go. It typically happens 2 or 3 times a week. No discernible pattern.
Might happen 3 days in a row, then not again for a week. Seems to be more
often in the morning as opposed to the afternoon. If I look at Hyper-V at
the time it's happening, Hyper-V says the CPU utilization is 10-12%, which
doesn't seem excessive to me. But I can never get logged on because of the
slowdown. A frustrating issue for all involved.

Each of the thin clients will be running 1 or 2 System i sessions and a
browser (either Chrome or Firefox) as we use Google Apps for business.
Individual thin clients _might_ have Excel, Word, Publisher, stuff like
that open.

Since I am a one-person shop responsible more on the business side than
the tech side these days, we have a Managed Services contract with a
company to handle these sorts of things. For whatever reason, they cannot
figure out the issue. The only idea they have had so far is Group Policy
update, but have since ruled that out.

Nor do they seem to have resources available to them to resolve issues
when they can't. (That lack of resources on their part is something I will
have to deal with in the near future.) Their next step is to shotgun it by
analyzing everything in sight at my expense. They want to involve MS, and
the thin client manufacturer, and do some network routing analysis. They
expect all this to cost me 20-30 hours of billable support. And have
already said if this doesn't resolve it, they'll look at other things. You
can imagine my joy at this.

Does anybody have any ideas on what I might look at as being the cause of
the slowdown? Both the support company and I have looked at the Windows
logs to no avail.


Jeff Crosby
VP Information Systems
UniPro FoodService/Dilgard
P.O. Box 13369
Ft. Wayne, IN 46868-3369

The opinions expressed are my own and not necessarily the opinion of my
company. Unless I say so.

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