Recover BTRFS Array After Device Failure

Today, one of the drives in my BTRFS RAID 10 array failed and I am posting how to handle the situation for others, and in case it ever comes up again. Symptoms I run non-critical Virtualbox instances over an NFS to my BTRFS RAID array, and I've been doing this…

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Label RAID Drives With QR Codes

I knew this day would come. One of the drives in my RAID array has died and now I need to figure out which one and remove it. Unfortunately, I have not labelled any of the drives, and I am not using any kind of hot swap hard drive cage…

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Create RAID with LVM

Many Linux users have created RAID arrays using mdadm and do not realize that you can also create a RAID array without it by using LVM. Installing LVM You may need to install the LVM packages in order to build these arrays. sudo apt-get install lvm2 Creating RAID 0 sudo…

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Ubuntu - Remove Mdadm RAID Array

If you need to reconfigure your mdadm RAID array, then it is probably easies to destroy it and then rebuild a new one. The following steps will show you how to destroy your existing mdadm RAID array. WARNING: Make sure to move all of your data off the array before…

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What is RAID?

RAID stands for "redundant array of independent disks", which Wikipedia describes as: ... a data storage virtualization technology that combines multiple disk drive components into a logical unit for the purposes of data redundancy or performance improvement. Why Should I Care? The slowest part of a computer is usually the permanent…

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