Creating a BTRFS RAID 1 Volume to hold Data during Syrup Mk2 Migration
Embedded Files
Before we tear anything apart, we have to make sure that the data we currently have will survive the Syrup Mk1 - Syrup Mk2 Migration.
As it stands right now we have 3 systems:
Synology DS423 - a 4 bay NAS containing 4 8TB HDD's
Data so far only stretches to about 1TB which gives us an opportunity
Thinkcentre M900 Tiny Serving as our Proxmox Server
Mostly unused 2 TB SATA SSD acting as Secondary Drive in System
Syrup MK1 with a 2 TB SATA SSD acting as a Data Drive in Ubuntu Server - Mostly empty at this point
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Wiping the Old SSD Filesystem and set up SSD_Pool (Syrup)
Make sure your system is up to date with:
sudo apt update && sudo apt upgrade -y
First, we unmount everything at /mnt/storage/:
sudo umount /mnt/storage
Us lsblk to check and see if the old SDA1 is mounted to /mnt/storage or not
We’re in luck - it’s not mounted!
Edit the /etc/fstab/ file and comment out the old UUID Line for SDA1:
Reboot the System:
sudo reboot now
Now, delete the filesystem in both SDA1 & SDB1 with:
sudo wipefs -a /dev/sda1
sudo wipefs -a /dev/sdb1
Just a side note: don’t be alarmed if you see the old file system still in /mnt - as you can see all of the files inside of the folders are gone, just before unmounting sda1 all of this in /mnt got put into your main boot disk
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Creating The New SATA SSD Filesystems
Here’s essentially the plan outline:
/dev/sda1 + /dev/sdb1
Btrfs RAID1
Label: ssd_pool
Mount: /mnt/ssd_pool
Use this command to make the btrfs RAID 1 file system under sda1 & sdb1:
sudo mkfs.btrfs -L ssd_pool -m raid1 -d raid1 /dev/sda1 /dev/sdb1
Please Note that this command, depending on the size of the drives may take awhile to complete (mine are both 2TB each)
Create the SSD_pool mount directory
Grab the SATA UUID’s from just SDA1 by using:
sudo blkid /dev/sda1
Now edit your /etc/fstab/ file adding the line at the bottom:
UUID=YOUR-UUID-HERE /mnt/ssd_pool btrfs defaults,noatime,compress=zstd,space_cache=v2,autodefrag 0 0
Mount everything and reload the systemctl daemon with:
sudo mount -a
sudo systemctl daemon-reload
Check if your system recognizes the changes with:
df -h
sudo btrfs filesystem df /mnt/ssd_pool
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We have now set up a BTRFS RAID 1 Array to hold our Data Redundantly - Next Step is to actually transfer that Data from the Synology DS423 over to Syrup
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