Zachman Framework

NetApp: Disabling snapshot for a volume on Data OnTAP

Sometimes, you need to disable snapshots for a volume, and the command line makes it so much easier.

Why in the world would someone want to disable a perfectly good feature of NetApp NAS Storage? Server/data migration for one. Disabling it temporarily will prevent the volume from filling up the snapshot directory. Maybe your volume doesn't need snapshots such as iscsi luns (data always changing, and can not be recoverable even with snapshots- such as oracle data dirs, in which case snapshots are useless).
You have to perform simple but important tasks. If your volume has a schedule, turn it off.

filer> snap sched volname Volume volname: 2 4 8@2,4,6,12,164
filer> snap sched volname 0 0 0 
filer> snap sched volname Volume volname: 0 0 0

That takes care of that. Next step is to disable the automatic snapshot option.

filer> vol options volname nosnap on

Now if you issue vol options vol You should see an option that says nosnap=on.

Lastly, you'll probably want to disable the display of the .snapshot directory. Not really a biggie if the qtree/vol is NTFS security style. But in UNIX, you'll see ".snapshot" in ls -la.

filer> vol options volname nosnapdir on

Easiest method for creating OSX Mavericks USB Installer

Here is the easiest method to create your OSX Mavericks installer:

sudo "/Applications/Install OS X Mavericks.app/Contents/Resources/createinstallmedia" --volume "/Volumes/Untitled" --applicationpath "/Applications/Install OS X Mavericks.app" --nointeraction

If that's what you were looking for, then you really don't need to read any further.  If you're a newcomer and need a little more information, read on:

Before the above command will work for you, you need to plug in your USB stick and format it using Disk Utility.  You'll need a minimum of 8GB, or it will not work.   Partition it and format it using Mac OS Extended (Journaled).   Then run the above command, adjusting the path after --volume to the path to your mounted USB stick (NOT /Volumes/Macintosh HD or whatever your system drive is!).

The second thing you need to do is to download the app through the Mac App Store.  You can do this even if you have already installed OSX Mavericks;  once the installer has downloaded and launched the welcome screen, hit ⌘Q to quit from the actual installer (Or Menu -> Quit).  The files will still be at /Applications.

Once you're done (it took me around 20 minutes for the creation process to complete), plug it into another system and reboot, holding Option to bring up the disk selection.  Select the disk and you should be off to installing OSX Mavericks from USB.

RSOP - Invalid Name Space

Recently had an issue where an entire site was not downloading domain policies. After a thorough search and different attempts to fix the issue I came across a batch file that I want to list here for future reference:

make the following into a batch file

net stop winmgmt

pause

c:

cd c:\windows\system32\wbem

rd /S /Q repository

regsvr32 /s %systemroot%\system32\scecli.dll

regsvr32 /s %systemroot%\system32\userenv.dll

mofcomp cimwin32.mof

mofcomp cimwin32.mfl

mofcomp rsop.mof

mofcomp rsop.mfl

for /f %%s in ('dir /b /s *.dll') do regsvr32 /s %%s

for /f %%s in ('dir /b *.mof') do mofcomp %%s

for /f %%s in ('dir /b *.mfl') do mofcomp %%s

mofcomp exwmi.mof

mofcomp -n:root\cimv2\applications\exchange wbemcons.mof

mofcomp -n:root\cimv2\applications\exchange smtpcons.mof

mofcomp exmgmt.mof


After running this re-run the GPUPDATE /force