[THIN] Re: Reclaiming Registry Space

How are you getting DelProf to work with just the /q /I /r switch?  It still
prompts a Yes/No question for regardless of the /Q switch.

 

Joe

 

  _____  

From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Rick Mack
Sent: Monday, March 07, 2005 5:06 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Reclaiming Registry Space

 

Hi Bill,

 

The maximum size a single page file can be is 4 GB. An RSL of about 120-140
MB is a practical (but not theoretical) limit for Windows 2000.

 

So you've got to try and operate with what you've got. While you can play
around withregistry settings to try and increase the fucntional RSL, you're
far better off looking at why you've hit the wall.

 

Every interactive user will use a registry chunk roughly equal to the size
of the sum of a users (%userprofile%) ntuser.dat and usrclass.dat files.

 

The user scalability of your system is limited by the amount of registry
space available between a limit of about 130 MB and whatever the system
hives take up (SOftware, SAM, System and Security in
%systemroot%\system32\config) . Add up the sizes of the system hives,
subtract that from 130 MB, and divide the remainder by the sum of your
average ntuser.dat and usrclass.dat files.

 

If you're hitting the wall at 30 users, you probably have less than 45 MB
toplay with.

 

Unless you've got real problems with user profiles, ntuser.dat (on 2000)
will generally be under 1.5 MB. If that's the case, then your problem is
system hives that are too big, most probably the Software hive. I've seen
software hives that were up to 80 MB in size. The bloat was generally due to
either wasted space (needs defragging) or bloated registry keys (eg
HKLM\Software\Microsoft\WIndows NT\CurrentVersion\Terminal
Server\Install\Machine) and possible other causes.

 

The fix is genarlly fairly easy. While you can backup/restore the registry
etc, I've found the following works just fine.

 

Make a backup copy of the operating system with robocopy, delprof (from 2003
reskit is best) and regback (eg use the batch file below).

 

-------

 @echo off
:: mirror.cmd - create backup systemroot
:: is c:\winback, alter to suit.
cd /d c:\

:: clean up old registry files
echo deleting old registry files
if not exist \winback\system32\config goto skip
cd \winback\system32\config
del /q c:\winback\system32\config\*.*
:skip

:: clean up any locally cached profiles
echo deleting locally cached profiles
delprof /q /i /r

::clean up any pending print jobs
net stop spooler
del /q %systemroot%\system32\spool\printers\*.*
net start spooler

:: clean up any dump files
del /q %systemroot%\*.dmp

:: now copy systemroot
echo Copying systemroot .... please wait
robocopy %systemroot% c:\winback /mir /r:0 /w:0 

:: copy registry
:: NOTE: logged on user profiles are NOT copied. 
echo copying registry
cd \winback\system32\config
regback Software machine Software
regback System machine System
regback SAM machine SAM
regback Security machine Security
regback Default users .Default

 :: done
echo done
echo Make sure that \boot.ini has been correctly modified to allow you
echo to boot into the backup systemroot
-------

 

Modify boot.ini (duplicate existing winnt entry, change winnt to winback)
and you're safe to go.

 

Get a copy of regcompact and run it against the system. It's reduced the
size of the software key from up to 80 MB doen to 30 MB for me.

 

regards,

 

Rick

 

Ulrich Mack 
Volante Systems 
Level 2, 30 Little Cribb Street 
Coronation Drive Office Park 
Milton Qld 4064 
tel: +61 7 32431847 
fax: +61 7 32431992 
rmack@xxxxxxxxxxxxxx 

 

  _____  

From: thin-bounce@xxxxxxxxxxxxx on behalf of Bill Sorenson
Sent: Tue 8/03/2005 8:34 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Reclaiming Registry Space

RSL is set at 135 and it won't let me change page size larger than 4044
meg.  We do run UPH Clean and it rarely cleans anything, but we still
end up with some registry errors in the log.

Bill

-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of Joe Shonk
Sent: Monday, March 07, 2005 3:27 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Reclaiming Registry Space

What is the RSL set at?  256?  Running UPH Clean.

Joe

-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of Bill Sorenson
Sent: Monday, March 07, 2005 12:39 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Reclaiming Registry Space

We run a number of different Citrix servers running both Windows 2000
and Windows 2003.  On our 2000 servers, we are running into maximum
registry space issues with about 30 users.  We use roaming profiles on
our 2000 environment (switched to Flex on 2003).

We've started to look at defrag utilities, but really need to get a
better understanding of what and how we can reduce the registry size to
get more users on. 

Any suggestions would be great.

Thanks,

Bill Sorenson
FSC
bsorenson@xxxxxxxxxx
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Terminal Services running Windows NT, 2000 or 2003.
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