Ah, it’s probably a result of running RAID6 then. All the parity RAID modes in BTRFS still has some issues, such as suffering from the “write hole” issue. This can result in data loss when the filesystem isn’t unmounted cleanly, such as a crash or power loss.
RAID5 and RAID6 are still not recommended for production use.
Understandable. RAID1 can be a significant reduction of available space, but it of course depends a lot on which combination of disks you are using. In my case the difference is fairly minor. With RAID6 I would have 26 TB usable, and with RAID1 I have 23 TB usable… So to me the safety is worth the lost storage… But that if course depends entirely in which disks you have.
Ah, it’s probably a result of running RAID6 then. All the parity RAID modes in BTRFS still has some issues, such as suffering from the “write hole” issue. This can result in data loss when the filesystem isn’t unmounted cleanly, such as a crash or power loss.
RAID5 and RAID6 are still not recommended for production use.
I know, but I’m poor and can’t afford RAID1 of the same capacity. Thanks for the advice anyhow.
Understandable. RAID1 can be a significant reduction of available space, but it of course depends a lot on which combination of disks you are using. In my case the difference is fairly minor. With RAID6 I would have 26 TB usable, and with RAID1 I have 23 TB usable… So to me the safety is worth the lost storage… But that if course depends entirely in which disks you have.
Here’s my setup: https://www.carfax.org.uk/btrfs-usage/?c=2&slo=1&shi=1&p=0&dg=1&d=8000&d=6000&d=3000&d=3000&d=12000&d=8000&d=6000