mamrehn

## fix_degraded_array.md

      
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                mamrehn
                / fix_degraded_array.md
            
            
              Created
              November 8, 2014 16:36
            
              
                Recover degraded array in a software raid.
              
          
    Source: Based on an artice at thomas-krenn.com (german, english translation) and raid.wiki.kernel.org.
1. Get a new hdd of same or greater size

Use feature comparison websites like gh.de or pricegrabber.com to find a suitable device.
2. Substitute with drive causing the failure

Check which drive is causing the degradation.
mdadm --examine /dev/sd[a-z] | egrep 'Event|/dev/sd'

  
## WekaSaveClassifier.java
//package ...;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

import weka.classifiers.Classifier;
import weka.classifiers.trees.J48;
import weka.core.DenseInstance;

## remove_unused_kernels.sh
#!/bin/sh
dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d' | xargs sudo apt-get -y purge
	//package ...;

	import java.io.BufferedReader;
	import java.io.FileNotFoundException;
	import java.io.FileReader;
	import java.io.IOException;

	import weka.classifiers.Classifier;
	import weka.classifiers.trees.J48;
	import weka.core.DenseInstance;
	#!/bin/sh
	dpkg -l 'linux-' \| sed '/^ii/!d;/'"$(uname -r \| sed "s/\(.\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]\)./\1/;/[0-9]/!d' \| xargs sudo apt-get -y purge