====== Dealing with Low Disk Space ======

===== Linux =====

<file>
du -sh /*

rm -rf /tmp/*
rm -rf /var/tmp/*
</file>

==== Remove Old Kernels ====

=== CentOS ===

http://www.if-not-true-then-false.com/2012/delete-remove-old-kernels-on-fedora-centos-red-hat-rhel/

<file>
yum install yum-utils
rpm -q kernel
package-cleanup --oldkernels --count=2
</file>

=== Debian/Ubuntu ===

:!: Uses ''aptitude'' package manager.

Paste this at the CLI then run ''rmkernel'' to remove all kernels except your running kernel. 

<file>
rmkernel () {
        local cur_kernel=$(uname -r|sed 's/-*[a-z]//g'|sed 's/-386//g')
        local kernel_pkg="linux-(image|headers|ubuntu-modules|restricted-modules)"
        local meta_pkg="${kernel_pkg}-(generic|i386|server|common|rt|xen|ec2)"
        sudo aptitude purge $(dpkg -l | egrep $kernel_pkg | egrep -v "${cur_kernel}|${meta_pkg}" | awk '{print $2}')
}
</file>

===== Windows =====

http://www.omegaprojex.com/index.php/2008/11/10/moving-shares-and-users-home-folders-to-a-new-server/

http://alloraconsulting.com/it-solutions/76-windows-server-2008-low-space

http://serverfault.com/questions/8187/whats-the-best-way-to-move-c-users-to-d-users-under-vista-w7

==== Delete $Windows.~BT and $Windows.~WS Folders ====

''$Windows.~BT'' and ''$Windows.~WS'' are temporary folders and can be safely deleted.

<file>
takeown /F C:\$Windows.~BT\* /R /A 
icacls C:\$Windows.~BT\*.* /T /grant administrators:F 
rmdir /S /Q C:\$Windows.~BT\
</file>

Now copy-paste the following and hit Enter to delete the contents of $Windows.~WS directory

<file>
takeown /F C:\$Windows.~WS\* /R /A 
icacls C:\$Windows.~WS\*.* /T /grant administrators:F 
rmdir /S /Q C:\$Windows.~WS\
</file>

==== Delete Old User Profiles ====

<file>
cd c:\users
dir
wmic /node:localhost path win32_UserProfile where LocalPath="c:\\users\\user" Delete 2>>c:\windows\temp\wmic.err
</file>

==== Disk Compression ====

Compress the C: drive from the CLI:

<file>
compact.exe /s /c /a /i <drive>:\*
</file>

==== Empty Recycle Bin for All Users ====

For Windows 7 or Server 2008 enter this command:

<file>
rd /s c:\$Recycle.Bin
</file>

For Windows XP, Vista, or Server 2003 enter this command:

<file>
rd /s c:\recycler
</file>

==== Disable Hibernation ====

Delete ''hiberfil.sys'':

<file>
powercfg.exe -h off
</file>

==== Change Pagefile Size ====

By default, the pagefile will be as large as your system RAM.  While this is important for Suspend-to-RAM, it may not be very important for most workstations.

**System Properties -> Advanced -> Performance Options -> Advanced**

==== Tools ====

=== TreeSize Free ===

  * Very useful tool for finding problems

http://www.jam-software.com/treesize_free/

=== ICSweep ===

  * Cleans temp files
  * Good for RDS servers
  * Seems to work on 2012 R2
  * Run as administrator

http://www.ctrl-alt-del.com.au/files/ICSweep.zip

<file>
c:\support\icsweep.exe /size
c:\support\icsweep.exe /all
</file>

=== SBS 2008 ===

  * Short script
  * Probably best used as an emergency 'free space now' tool

<file>
@echo off
rem Script to clean up disk space on SBS 2008 servers
rem Downloaded from SBSfaq.com
rem V1.0 - March 28th, 2010
rem Certificate Services Logs
net stop "Active Directory Certificate Services"
del c:\windows\system32\certlog\*.log
del c:\windows\system32\certlog\*.chk
del c:\windows\system32\certlof\*.jrs
net start "Active Directory Certificate Services"
rem IIS Log Files
Del C:\inetpub\logs\LogFiles\*.log /f /s
</file>

**CleanUp** may be useful to clean up Windows Profiles:

https://bitbucket.org/dev247/cleanup/overview

==== On New Systems ====

If you are building new systems:

http://support.microsoft.com/kb/949977

==== Windows 2008 and R2 ====

https://support.appliedi.net/index.php?/Knowledgebase/Article/View/992/0/how-to-enable-the-disk-cleanup-tool-on-windows-server-2008-r2

On 2008 R2, at an administrative command prompt:

<file>
copy C:\Windows\winsxs\amd64_microsoft-windows-cleanmgr_31bf3856ad364e35_6.1.7600.16385_none_c9392808773cd7da\cleanmgr.exe %systemroot%\System32

copy C:\Windows\winsxs\amd64_microsoft-windows-cleanmgr.resources_31bf3856ad364e35_6.1.7600.16385_en-us_b9cb6194b257cc63\cleanmgr.exe.mui %systemroot%\System32\en-US

Cleanmgr.exe
</file>

==== Windows 2012 and 2012 R2 ====

**2012 R2 - SxS**: https://www.saotn.org/windows-server-2012-r2-disk-cleanup-dism/

:!: The **Disk Cleanup Tool** is available in Windows Server 2012, if you **install the Desktop Experience feature**.

:!: All existing service packs and updates cannot be uninstalled after this next command is completed. 

Clean up all superseded updates:

<file>
dism.exe /online /Cleanup-Image /StartComponentCleanup /ResetBase
</file>

Clean up after service packs:

<file>
dism.exe /online /Cleanup-Image /SPSuperseded
</file>

===== Outlook =====

==== Move Local Cache ====

https://www.msoutlook.info/question/463

https://www.howto-outlook.com/howto/movingostpstoutlookcomimap.htm

=== Symlink Method ===

Perhaps as an administrator:

  - **Create a new directory/structure** on the destination disk drive to hold the user's local cache
    - **Adjust permissions** so that user, and administrators, can access the directory/contents
  - M**ove the user's .OST file** to the new location
  - **Create a symbolic link** from the old file/location to the new
  - **Start Outlook**
    - If any problems, close Outlook and check permissions

As the user whose .OST file we are moving, create the symlink at a command prompt:

<file>
mklink "C:\Users\<profile>\AppData\Local\Microsoft\Outlook\<username>@<domain.tld>.ost" "E:\Users\<username>\Mail\<username>@<domain.tld>.ost"
</file>