Do one thing every day that scares you

If your a user of XIV, or your considering purchasing an XIV, then there is one tool that you will truly love. It’s called XIVTop.   The XIVTop application comes packaged with the XIV GUI and is one of the handiest add-ons I have ever seen.  It lets you monitor your XIV in real time, seeing exactly how much IO or throughput is being achieved and at what response time (in milliseconds).   You can immediately answer questions like:

  1. Is poor application response time being caused by poor storage response time?
  2. What application is currently generating so much traffic on the SAN?
  3. What effect has performing file de-fragmentation had on performance?
  4. Are the backups running and how much traffic are they generating?
  5. What happens when I run multiple application batch jobs at the same time?

The ability to get this information in real time is what makes XIVTop so invaluable.

So in the tradition of always pushing my boundaries, I thought I would create a narrated video about XIVTop.   What I discovered is just how terribly hard doing narrated videos are:   You need to write a script… you need to stick to the script…  you need to not fluff any words…. you need to speak slowly and clearly and not start talking in a strange accent.    I had trouble with all of these, so I made take after take after take after take, until I was heartily sick of the process.   I have now got a much greater respect for newsreaders and film actors.  This narration stuff is hard!

So please check out my final take.  It’s still far from perfect, but all feedback is very welcome.  The only other thing that is quite strange is Youtubes choice of videos to watch after mine.    Its worth watching just to see the list.  I think the term performance confuses the algorithm.


About Anthony Vandewerdt

I am an IT Professional who lives and works in Melbourne Australia. This blog is totally my own work. It does not represent the views of any corporation. Constructive and useful comments are very very welcome.
This entry was posted in IBM XIV and tagged . Bookmark the permalink.

13 Responses to Do one thing every day that scares you

  1. Pingback: Do one thing every day that scares you | Storage CH Blog

  2. vtdarryl says:

    Great job ! See you on CNNNN… next video “Big Bang: The real Concert” :-)

  3. Pingback: Do one thing every day that scares you - The Business of IT Storage Blog - IBM Storage Community

  4. pdz says:

    xiv top is a great tool but its a shame the data cannot be piped out to a graph or csv file while using top.
    eg to get the top 10 IO vols/hosts over the last 24 hours.

    • avandewerdt says:

      Well for that you can use the Stats page in the main GUI. You can also export stats using CLI to a CSV file.

      • John Barnes says:

        But the stats page in the main GUI, and the CLI has a resolution of only 1 min. My Exchange team is providing graphs with a 5 sec resolution. With the 1 min resolution in the GUI, I am not able to see spikes on my iSCSI link that are happening for less than 1 min, seeing the graphs from exchange and watching XIVTop is the only was for me to see the latency spikes that the Exchange team is talking about. it would really be nice to be able to save a longer history of data than the last minute in XIVTop

  5. pdz says:

    Unless I am missing it, i don’t think you can. Obviously, there are lots of stats in the GUI stats view, but there is no way to get the top talkers from say the last 24 hours without looking at all the objects (vols or hosts). Exporting xcli stats to csv and using excel to identify them is the only way I can see to do it.
    Am I missing something?

    • avandewerdt says:

      Your correct. To get stuff like top talkers you would need some scripting.
      What location are you in? There are some tools we can supply that might help you.
      You should talk to your XIV Technical Adviser.

  6. pdz says:

    i have some scripts that i got from IBM that capture and average out performance stats on all objects. They are pretty good but average out the stats per object so can potentially miss spikes. For our latency sensitive systems, I export the previous 24 hours stats at 1 minute intervals and use excel to catch spikes. I’m in Ireland.

  7. Pingback: XIV Performance Monitoring Tools | Aussie Storage Blog

  8. Pingback: XIV Performance Monitoring Tools « Storage CH Blog

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