kvm localized virtual desktops

May 7th, 2015 No comments

I read something interesting the other day. Running multiple VMs, on the same computer; the catch is that they are all running on the same desktop (not headless) sharing one display. The term is “kvm localized virtual desktops”.

The place I read this was the UnRaid blog, talking about KVM integration into the UnRaid 6 system (SOURCE).

Since OpenSuSE has tools and support for kvm, I shall try this.

It would be interesting to run linux and windows and not have to dual boot, and have access to the same GPU from both OSs.

Categories: Linux Tags:

space usage

May 7th, 2015 No comments

Recently came across one of my linux VM machines that ran out of disk space. But where did all the space go? What ate it up?

du -h <dir> | grep ‘[0-9\.]\+G’

This will list a sorted view of the foles/folders from largest to smallest.

(SOURCE)

Categories: Linux Tags:

Accessing network drives from command prompt

April 27th, 2015 No comments

Oddly enough on windows you can’t just type R:/ in the cmd prompt and change directory there. That syntax only works for local drives.

You have to type /Df:\ to open the f: drive

Categories: Computer geek stuff Tags:

Laser Diffraction pattern research

February 26th, 2015 No comments

Found a few sites/companies that manufacture difracion gratings. I should contact them and get some samples.

http://worldstartech.com/products/description/60/index

http://www.lasercomponents.com/us/product/pattern-generators-for-flexpoint-laser-modules/

http://www.edphoton.com/Other%20Standard%20DOEs%20English.htm

Categories: Engineering Tags:

Strenghtening 3d printed parts

February 16th, 2015 No comments

Some interesting and some common ways to make 3d parts stronger.

http://st3p3d.com/blogs/3d-printing/14992261-a-few-ways-to-strengthen-3d-printed-parts

Categories: 3D printing Tags:

OpenCL in Linux

December 24th, 2014 No comments

I was evaluating the demo version of Agisoft PhotoScan and I could not the OpenCL option to show up in the software’s preferences.
After installing the python OpenCL libraries, PhotoScan was able to detect the GPU and gave me the OpenCL option.

Categories: Computer geek stuff, Linux Tags:

CATIA STL to surfaces

December 16th, 2014 No comments

Categories: Uncategorized Tags:

Network storage and backup

November 28th, 2014 No comments

I lost a HD the other day and whatever data was on it. I think I had most things backued up but there was still some data that is gone forever. This got me thinking about how to better protect ALL devices in my house.

Storage is cheap, but I don’t want 2 HD in every machine. And some machines like the laptops can’t use 2 HDs.

At the same time I need to re-evaluate the NAS solution in my house. I’m currently managing two systems. An UnRaid computer for archival storage and a Nas4Free machine for a faster access of data.

Steps:

1. Add an SSD drive to UnRaid as a cache drive to speed up write functions on the UnRaid system, and compare network read/write speeds with the Nas4Free box. See how different the two really are.

2a. If speeds are very close, take apart the Nas4Free array and move the two 2TB drives to the UnRaid system.

2b. If speeds are not close buy two 2TB drives and replace the two 1TB drives in the UnRaid system. This will increase the array capacity by 2TB.

3. For all computers set up some software that will backup the working files of all computers to a backup folder on the UnRaid system. Have this backup be done once a day (probably at night). A scheduled rsync operation (that also mirrors deleted files) should suffice. I don’t want an ever growing amount of data. Just a mirror copy of the machine’s HD in case it fails.

Categories: Computer geek stuff, UnRAID Tags:

Splitting up large objects

November 28th, 2014 No comments

To print large objects, they need to be split up into smaller pieces that fit within the 3d printer’s build volume.

Some useful links:

Stratasys page for bonding parts together.

Interesting plugin for SW, Inventor and AutoCad that will split up a large object and break it into smaller build volume sized chunks. Find it HERE.

Categories: 3D printing Tags:

Blood glucose meter research

November 26th, 2014 No comments

Looking for a blood glucose meter.
Best 10 glucometers as lsorted by Men’s health
http://www.menshealth.com/spotlight/diabetes/top-blood-glucose-meters.php
It looks like not all blood sugar meters are equally accurate. List of a bunch of meters on this page.
http://www.diabetesdaily.com/voices/2013/07/blood-glucose-meter-accuracy-comparison-chart/
Same data sorted by total accuracy from lowest to highest (total accuracy = the sum of all the entries for each unit)
(table at the bottom of post)

Some recommendations for the Accu-Chek Active since it’s accurate and test strips are least expensive.
Excellent article on the technical challenges of getting accurate readings from glucometers:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2769957/

Meter Within 15% Within 10% Within 5% Within 15% Within 10% Within 5%
Under 100 mg Under 100 mg Under 100 mg Over 100 mg Over 100 mg Over 100 mg
SeniorLine GM210 15% 0% 0% 79% 55% 29%
Glucohexal II 50% 21% 7% 80% 64% 32%
GlucoRx (TD-4230) 83% 41% 14% 65% 40% 14%
Wellion CALLA Light 68% 33% 13% 89% 73% 52%
GlucoSmart Swing 84% 53% 15% 94% 67% 33%
Futura Monometer 90% 68% 27% 79% 59% 26%
IME-DC Fidelity 72% 43% 18% 94% 85% 48%
Biocheck TD-4225 76% 52% 22% 97% 80% 49%
Element 90% 79% 48% 83% 64% 30%
GlucoTel 89% 70% 33% 92% 72% 41%
Bayer Contour usb 90% 69% 45% 91% 68% 34%
smartLAB genie 84% 52% 23% 98% 87% 57%
iDia 96% 80% 47% 90% 71% 40%
GlucoCheck Classic 97% 84% 55% 85% 66% 38%
Beurer GL32 85% 62% 40% 99% 91% 56%
iBGStar 96% 90% 52% 90% 72% 35%
WaveSense Jazz 100% 75% 38% 95% 80% 47%
GlucoCheck XL 97% 92% 58% 88% 65% 40%
Pura 100% 95% 48% 100% 74% 30%
GlucoCheck Comfort 96% 86% 56% 95% 74% 41%
iXell OLED 97% 85% 52% 97% 79% 39%
smartLAB global 91% 85% 57% 93% 79% 48%
Beurer GL40 98% 90% 52% 95% 78% 42%
Omnitest 3 94% 86% 64% 91% 79% 48%
iXell 100% 98% 68% 89% 75% 38%
OneTouch Verio 97% 78% 40% 100% 95% 64%
microdot+ 98% 95% 62% 94% 83% 43%
Accu-Chek Compact Plus 100% 86% 27% 100% 94% 69%
Gluco-test Plus+ TD-4230 96% 94% 76% 95% 79% 42%
OneTouch VITA 98% 93% 72% 99% 87% 50%
BGStar 98% 92% 80% 97% 87% 62%
Accu-Chek Performa 100% 95% 72% 99% 94% 68%
Accu-Chek Mobile (maltose independent) 100% 98% 71% 100% 94% 66%
Accu-Chek Performa 98% 97% 78% 98% 92% 66%
Accu-Chek Aviva 100% 97% 80% 99% 91% 64%
Accu-Chek Mobile (maltose dependent) 98% 98% 73% 100% 96% 66%
Accu-Chek Nano 100% 96% 80% 99% 95% 65%
Accu-Chek Performa Nano 100% 98% 87% 100% 96% 64%
Accu-Chek Active 100% 100% 72% 100% 100% 79%
Accu-Chek Go 100% 100% 94% 100% 96% 79%
FreeStyle Lite 100% 100% 93% 100% 100% 86%
FreeStyle Freedom Lite 100% 100% 98% 100% 98% 90%

 

Categories: Health Tags: