Tag Archives: scripts

A nice way to return string values from functions in Bash

What can be as trivial as returning a value from a function in a scripting language? For those who has ever dealt with Bash, the answer turns out to be not so obvious. First, there are multiple options to do … Continue reading

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Sorting Tumblrs you are following by their last activity

It seems, migration to GitLab stimulated me to code more in unusual for me languages and environments. First, it pushed me to do something in PowerShell: A short script to change audit rules on a file or a directory in … Continue reading

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The BeaST again!

I’m working hard now to run the BeaST Storage system on the real hardware and hope to have some results and good news to post in the future. Meanwhile, I have updated The BeaST Classic – dual-controller storage system with RAID … Continue reading

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A simple way to visualize IBM SVC/Storwize performance

Recently I wrote a set of tools to collect and display in CLI performance statistic of IBM Spectrum Virtualize: SVC and Storwize systems. Using various protocols it’s possible to get both detailed performance for each vdisk, mdisk or drive as … Continue reading

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Well done, JavaScript. Well done!

Arithmetic:

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Quickly report alive IPv6 addresses on the network

While searching a robust solution to discover all alive hosts on the local IPv6 subnet, I have found the easiest way except, probably, ndp is to ping … no, not each of them, but the multicast address ff02::1 and then … Continue reading

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My article about scripting is included into the “IBM System Storage SAN Volume Controller and Storwize V7000 Best Practices and Performance Guidelines” Redbook

The latest draft of the famous “IBM System Storage SAN Volume Controller and Storwize V7000 Best Practices and Performance Guidelines” book is already on the IBM Redbooks site. And this year I was lucky to take part in writing it. … Continue reading

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