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Tagged: mdadm RSS

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  levin 11:31 pm on April 28, 2010 Permalink | Reply
  Tags: linux ( 38 ), lvm, mdadm   

  howto reinstall GRUB in rescue mode while using lvm / mdadm 

  This article is how to activate LVM and mdadm software raid in rescue and reinstall GRUB boot loader, since the boot CD will not do this job for you. By following the steps, you may able to do system recovery or disk operation.

  RedHat 5.x

  Activate the RAID

  mkdir /etc/mdadm
  mdadm --examine --scan > /etc/mdadm/mdadm.conf
  mdadm -A --scan
  

  (More …)

  levin, Anthony_A, and rwheindl are discussing. Toggle Comments

   
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    rwheindl 12:03 am on November 24, 2010 Permalink | Reply

    Excellent Tutorial! Just what I was looking for. Thank you very much.

  • 

    Anthony_A 3:30 pm on December 19, 2010 Permalink | Reply

    Thanks a lot to your tutorial you solved my problem.

    • 

      levin 4:02 pm on December 19, 2010 Permalink | Reply

      Glad to help!!

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  levin 12:17 am on April 28, 2010 Permalink | Reply
  Tags: linux ( 38 ), mdadm, raid ( 3 )   

  Enlarge linux software mirror raid 1 howto 

  Scenario

  A linux box running on a software raid 1 mirror harddisk (120GB), recently the server is running out of disk space. A new pair of harddisk with larger capacity (500GB) is going to replace the existing pair.

  Current disk layout

  100MB md0:/dev/sda1, /dev/sda2
  111GB md1:/dev/sdb1, /dev/sdb2

  /boot /dev/md0
  VolGroup00 /dev/md1
  - LogVol00 swap
  - LogVol01 /

  Synchronize the data to new harddisk

  1. Shutdown the box
  2. remove sdb from the box
  3. replace with the new 500GB disk

  (More …)