Posts Tagged raid

My EC2 EBS RAID-0 creation script

Posted by Jon Zobrist in AWS, Bash, EBS, EC2, Linux, Linux Support - Servers, Programming on May 4, 2011

I want to write up a full howto/tutorial, but have not had the time.

Here is the script that I referred to in my post at http://jonzobrist.com/2011/04/16/ec2-raid0-on-linux-with-ebs-volumes-notes/

This program is distributed in the hope that it will be useful but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License HERE for more details.

http://jonzobrist.com/files/setup-ec2-raid-0.zip

http://jonzobrist.com/files/setup-ec2-raid-0.sh.gz

This script needs an AWS command line setup, and may need some minor tweaking if you’re not running a Ubuntu server.

Ubuntu’s latest AMI’s are available for 10.04 here.

Please feel free to submit patches, comments, or questions.

Thanks to everyone whose helpful posts online and in the AWS forums helped me with this script. I could not have done it with out your generous sharing of work.

Enjoy!

Amazon, AWS, bash, EBS, EC2, Linux, programming, raid, RAID-0, RAID0, script, unix

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LCOD 11.14.07 – Quick RAID check script for cron

Posted by Jon Zobrist in Bash, Linux, Linux Command of the Day, Programming on November 14, 2007

This is a quick script that will let you run the new raid checks, or repair, or pause a running raid check. It doesn’t do e-mails or anything, and from what I read on this thread it’s something mdadm needs to be set to watch for. I ran the check on a RAID and received no output, so I guess it was ok?

I will update the script as I find out more. I’d like to add a simple escalation from check to rebuild? (I think it does this anyways), and an e-mail status report, or even a syslog call saying I ran all things look good.

#!/bin/bash ############### # Quick script to use raid functionality # Author : Jon Zobrist < jon@bluesun.netThis e-mail address is being protected from spam bots, you need JavaScript enabled to view it > # http://www.bluesun.net/ # License : LGPL # Version : 1.0 # Date : 11.14.07 # install/notes: # put it somewhere, /root/bin/ is where I prefer # put this in your root crontab to run from cron monthly # @monthly /root/bin/checkraids check > /root/logs/cron.log 2>&1 ###############


case "$1" in

 check)

  for raid in /sys/block/md*/md/sync_action

  do

   echo check > $raid

  done

 ;;
 repair)

  for raid in /sys/block/md*/md/sync_action

  do

   echo repair > $raid

  done

 ;;
 pause)

  for raid in /sys/block/md*/md/sync_action

  do

   echo idle > $raid

  done

 ;;
 status)

  for raid in /sys/block/md*/md/sync_action

  do

   echo "******************************"

   echo $raid `cat $raid`

   echo ""

  done

 ;;