Archive | January, 2012

Tip #4: Graphing Performance data from NetApp w/ Powershell – Part 1

Your NetApp DFM (OnCommand Core) Performance Advisor is lying to you… It doesn’t want to. And it doesn’t mean to. But it is. This was an issue that a customer came to me with yesterday.

If you asked your NetApp or DFM, “Hey dude, what’s my CPU utilization?” DFM may reply back, “Ohh man, you’re screwed, it’s 95%!” You instantly crap yourself since you just paid big money for all this stuff, which should last for years. Don’t worry, more than likely you’re good. Let’s take a look at why is it lying to you?

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Tip #3: Adding additional networks to VMware Fusion 4/5

So, you are studying for a networking certification. Maybe CCNA or CCNP, maybe F5 or Juniper. You need multiple interfaces to run GNS3/Dynamips or your favorite networking tool. Alas, the default configuration of VMWare Fusion just has the basic VMnet1 and VMnet8. Here is how to fix that!

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Tip #2: Simplify creating NetApp luns/mounts with snapdrive (unix/linux)

NetApp’s snapdrive utility can help simplify out workflow, and reduce the amount of requests we get from the “Bob’s” of the world. This shows how you can do things like creating, presenting, formatting and mounting luns from your NetApp all with 1 command from the host!

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Words of Wisdom: Goal Setting

Do not set your goals so low that there is no struggle or sacrifice. Goals needing no effort are just ‘todo’ list items. If you fail, learn from it. If someone says you can’t do it, cast them out, otherwise you’ll start thinking that too.

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Snippet – HPUX – Cleanup removed luns

I’ll go more into cleanup of old luns or old flexclones later on hpux and linux, but for now… here is how to remove disconnected luns from an HPUX server.  Don’t forget to remove the lv/vg first.


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Tip #1: Monitoring SnapMirror relationships with PowerShell

Working in IT can be like war, we are in the trenches, issues all around. Problems jump up and attack without you even noticing. We must keep a watchful eye on all areas of our environment, and attack issues, before they get us!

In my first installment, I want to show a simple way to get the highest lag time of all your NetApp Snapmirror relationships, with Powershell. This is useful for anyone running Orion, WhatsUpGold, Nagios, or any other monitoring tool which can call out to scripts and remote hosts for custom checks.

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