Visio by DPTPB: Nutanix stencil G6 (Skylake) update

Block NX-3460-G6 IPMI

Nutanix seems to have done a soft launch for the next generation G6 hardware. I haven’t seen much marketing around this, but some information is already trickling down. For example HW specifications of G6 platform are already available at Nutanix website.

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First experiments with Nutanix AHV Turbo.

One of  the improvements that came along with Nutanix  AOS 5.5 was IO path optimization feature called “AHV Turbo”.

While the marketing department at Nutanix might have fallen asleep and woken up in 1990s with god-awful name like this, it is actually a GOOD feature.  Every time I hear word “Turbo” in IT related matters, it just reminds me of my first ever PC, a 286 with a “Turbo” button, which supposedly boosted performance by increasing  frequency from 8 Mhz to 12 Mhz, but did actually do diddly-squat 🙂

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Enabling Nutanix “Stargate” I/O statistics page access with allssh command, AOS 5.5 edition

Finally got my hands on AOS 5.5 and upgraded our lab Nutanix cluster to this version.

In my earlier post I described how to manipulate “iptables” rules to allow access to “Stargate” or “port 2009” pages. Stargate page contains lots of detailed information of I/O operations, more info in my earlier post. It seems that “iptables” configuration has changed in this version.

In versions prior AOS 5.5 “iptables” chain used was called “WORLDLIST”. In AOS 5.5 the name of the chain has changed to “MGMT_OPENFROMALL”. This requires changes in “iptables” commands used.

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Nutanix AHV: removing corrupted images from catalog

For some reason I managed to upload images into Nutanix AHV image catalog that were corrupted. This might be a browser related issue, I have to do some digging in order to find root cause for the problem.

One symptom of image corruption was that all the controls for the image were missing from the Prism GUI. The image was there, but no controls and there was no way to remove the corrupted image.


  • Login into one of the CVMs as nutanix user
  • Launch acropolis CLI: acli
  • List images: image.list
  • Delete images: image.delete

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Visio by DPTPB: Rack Stencil (V2)

April 24, 2017 Visio by DPTPB release update notes

Shape placement and spacing with the original V1 DPTPB rack shapes has been a manual process. Fairly easy to do, but still required some effort. I’ve addressed placement / spacing issues with new dynamic rack shapes with automatic placing for both front and rear view rack shapes.

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Visio by DPTPB: V2 stencils, finally done :)

April 24, 2017 Visio by DPTPB release update notes

Finished with updating remaining DPTPB stencils to follow “V2” design, where all data associated with the shape is now within top-level shape and rear view shapes have connection points to match rear view rack shape. Like with previously updated DPTPB stencils, new “Rack”, “NetApp Controller” and “NetApp Disk Shelf” shapes look pretty much the same as the old ones, but under the covers new shapes are using completely new design.

Fun part of learning new stuff and building new shapes is over, now only the more tedious part of documenting the changes remains 🙂 In this post I will cover the changes on high level, more in-depth info in upcoming posts.

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Visio by DPTPB: Updated NetApp Sample Drawings + Bug Fixes

April 10, 2017 Visio by DPTPB update notes

Executive Summary

  • Minor update to DPTPB stencil collection
  • Updated all NetApp sample drawings to use V2 style switch and cable shapes
  • Additional Rubrik Sample Drawings
  • Few bug fixes

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