It really pisses me off when I have to type passwords over and over and over again. Even more so when I am trying to do a ton of work or do a deployment and I need to do it.
It’s even more annoying when a customer won’t enable proper access to their systems, or they use root forever with weak passwords.
Enter the SSH KEYs. Here is how to set them up on your NetApp in both 7-mode and Cluster Mode!
Click to continue reading “Snippet: NetApp SSH Keys for passwordless auth.”
A year in review, and a look ahead!
We have a gift of mind and body given to us every day we are alive, no matter what we face with either. Forcing myself to do which I never thought I could, is the best Christmas and New Year gift I could give myself. I do not want to stop challenging myself until it kills me!
What about 2014? Read more for my thoughts on where you should and shouldn’t be spending your time!
Click to continue reading “New Year. Looking back, looking ahead.”
Me: “How many SAN IO Calls would you need to make to get File 1 for the Misaligned storage?”
Customer: 5
Me: “What about aligned?”
Customer: 2
Me: “What about File 2?”
Customer: 7
Me: “What about aligned?”
Customer: 2
Me: “How many tiny files, and fragments do you have on your fileservers?”
Customer: “Millions…”
Me: “Wouldn’t you like to save 2-4x or more IO calls and cache?”
Customer: “We love you, have our babies!”
Click to continue reading “Filesystem Misalignment for dummies”
When ever I hear of new products and features, I put the statement through the paces to see if it’s total BS, or something worthwhile. This morning, an email caught my eye. Riverbed made their announcement of upgrades and product line additions.
I love what Riverbed can do for their customers. I won’t lie. No product is perfect, but It’s just been too damn useful for think bad about anything of it. And when they bough CACE, and turned Wireshark into something even better, and that Riverbed Pilot is like Wireshark on crack with some redbull-fed gnomes for historical analytics… well I am even happier with the offerings.
Click to continue reading “Some cool Riverbed Upgrades and Additions”
Doing an intensive 3-day NetApp & VMware healthcheck for a customer, and I found the “Ghost in the Machine”.
Click to continue reading “Ghost in the machine… I found it!”
Recently I did a deployment where a great and awesome longtime customer added a new site in Canada. I flew up to Canuckland to install new VMware servers, new Netapp 2240, and a Riverbed Steelhead. There was a partner Riverbed Steelhead here in PA at the customers office. This was a great deployment. Once I got everything worked out and configured, their WAN got a major injection of Honey BooBoos GoGoJuice.
How much faster? Optimization quickly jumped up to 97% WAN reduction and a 23.6X increase in throughput!!!!
743Mb/s LAN throughput, fitting into 55Mb/s WAN bandwidth!!
Click to continue reading “Riverbed Steelhead & Netapp Snapmirror – OMFG Happiness!”
I saw a question on LinkedIn on the Netapp group today.
“what is the downtime (in seconds) for a FAS2240 high-availability machine in case one controller fails and the other takes over? ”
My pre-first cup of coffee answer was less on the question, and more on proper upkeep of a system running on a SAN/NAS. Any SAN/NAS. Set your damn timeouts on your hosts!
Click to continue reading “Tip #8: Set your damn host timeouts!”
I am pretty active on LinkedIn with the NetApp groups there, and newbie NetApp admins are asking quite often lately about the NCDA exam.
Here are some helpful things to try out on the simulator. Every netapp admin should know them.
Click to continue reading “TIP #7: Using Netapp simulators to prepare for NCDA/NCIE exam”
A tale of debugging and tech support hell… don’t freaking buy an HBA with a server! Don’t REUSE cards you have laying around if they were sourced from any server manufacturer or different brand SAN.
Click to continue reading “Do not buy your FC HBAs from your server manufacturer!”
I figured it was time to share some of the information I have posted before with graphing with powershell and also more advanced…
In the past, I had used 3D modeling in the Stats package R, to do 3D modeling of the CPU on a san. This is how!
Click to continue reading “Tip #5: Graphing performance data from Netapp – IN 3D!”
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