A few people have responded regarding a broken link on this post: http://rajeev.name/2006/10/23/snmp-quota-from-netapp-filers/. A good friend at my old place helped me out and the source code for getquota.pl is now available here: http://rajeev.name/getquota-source/ … [Read more...]
iPhone – say hello! to NetApp
It's only natural for us to do this. We have strategic business relationships with both Apple and NetApp and we tend to like both of these technologies. A result of the IronBrick, Apple and NetApp synergies is NTAPCalc. It is a simple little app that allows a NetApp administrator/customer/account manager to quickly do the following on their iPhone: Calculate Raw and usable capacities by selecting drive sizes, number of drives, snapshot reserve percentage, raid group size and hot spares … [Read more...]
Drawing Pie Charts using iPhone SDK
Here's one way to draw a PIE chart using the latest iPhone SDK. There are a ton of tutorials out there that let you get started with the iPhone app development itself and I am by no means any authoritative source on learning how to develop one. Having said that, here's a class file that will help you use the UIKit and Quartz to draw vector graphics. … [Read more...]
Swiss army knife for ONTAP performance measurement
I don't hear much about this command from the NetApp user community - stats. It's a nifty little command that allows us to monitor a lot of performance metrics at a fairly granular level. The command output can also be customized, so this might save a lot of parsing and grep-ing that goes on during our normal filer performance monitoring, charting exercises. … [Read more...]
LinkedIn CSS Oddities
I am not sure other people have noticed this or not but during the morning times, the LinkedIn servers get bogged down and the website ends up looking like this I know of a few people that this happens to and figure that this is not a "user" problem. The issue is really with the servers where LinkedIn stores its CSS. The main page www.linkedin.com uses the following style sheet residing at … [Read more...]
iPhone sounds for Entourage
Instead of the Entourage's new message sound (which is not particularly welcoming), here's one way to have the cool iPhone new mail sound for Entourage. You will need and fully working iPhone and a licensed copy of Entourage Steps Make sure that you have disabled the new message sound for EntourageMake sure you have enabled new mail sound in iPhone (Settings -> Sounds -> New Mail - On)Just make sure you have your iPhone with you when you check your email in … [Read more...]
SnapMirror Bandwidth over 10GbE
Starting Data ONTAP 7.2.5, the SnapMirror TCP receive window size has been increased. Recall in my earlier posting about SnapMirror over loopback, we tried to ascertain the theoretical bandwidth of the SnapMirror over the loopback adapter. The new increased limit for SnapMirror Window Size is 8388608 bytes. Bandwidth (bytes/s) * Delay (s) = Window Size (Bytes) So for an average round trip delay of 0.060ms (which is the observed packet loss when pinging my loopback adapter), the … [Read more...]
Blistering barnacles ! – Windows NT in VI 3.5 !
Let's say that again - Windows NT in VI 3.5. Where did I see that, you ask ? I was spared the sight of such sinister machination. Nevertheless, I was posed a question relating to that configuration in my VCP exam. Yes, the VCP exam. There wasn't an option that read "Are you OUT OF YOUR MIND!"... but I digress. What matters is that I passed. So if you are running Windows NT with VMware 3.5, you should hire me now. I shall endeavor to oust that devil from the sanctum sanctorum of your data … [Read more...]
ONTAP 7.3 – Hammer!
Looky here :) A new command to perform system level stress test sneaked into ONTAP 7.3. Beware, it is UNDOCUMENTED and UNSUPPORTED. So chances are that it will bring your storage system to its knees.. Don't say I did not warn you. ontap1*> help hammer hammer - stress disks/filesystem ontap1*> hammer ? usage: hammer [abort|pause|restart|status| [-f] ( == -1 runs hammer forever)| fill (use all available disk space)] Let's run it! ontap1*> hammer … [Read more...]
Automated OSX backups with launchd and rsync
In this article, we'll take a look at using Leopard's launchd and rsync to develop a automated data backup methodology. In addition to rsync and launchd, we will also integrate Bernhard Baehr's SleepWatcher utility. In our environment, we use NetApp filers to host our network shares and are using CIFS network shares. However, with NetApp and Mac OS X, those file shares could be NFS, just as well. This will also work with your AFP shares. … [Read more...]
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