0
votes
1answer
46 views

btrfs - did I just turn RAID1 into RAID10?

I set up a btrfs partition using two 3 TB drives in RAID 1: $ mkfs.btrfs -m raid1 -d raid1 /dev/sdd /dev/sde $ mount /dev/sdd /media/media Copied a bunch of data onto the partition, with the ...
4
votes
2answers
2k views

Which is better for a home media server: zfs or btrfs or LVM/md? [closed]

I'm looking at building a new home server and would like a flexible filesystem. Both btrfs and zfs are interesting. I want to be able to do soft raid and have flexible solution allowing me to expand ...
3
votes
2answers
517 views

How to create an external selfhealing btrfs USB HDD RAID 1 array?

The hardware is an external 2TB bus powered USB disk. What I want is a RAID1 setup of 2x 1TB btrfs. Is this possible? How? __ Motivation The motivation for me to use RAID1 btrfs is because I ...
0
votes
1answer
622 views

Installing Ubuntu on btrfs over multiple drives

When I installed Ubuntu 13.04, I managed to combine a couple of outdated askubuntu answers, as well as some of the btrfs documentation in order to figure out how to install Ubuntu over two SSDs using ...
3
votes
0answers
302 views

Can't mount btrfs on boot [duplicate]

I have a server running Ubuntu 12.04 (with a 3.8.13 kernel) that fails to boot if I include in /etc/fstab a mount point for a btrfs volume: /dev/sda3 /home btrfs ...
3
votes
2answers
3k views

How to install using btrfs in RAID10 mode?

As a test I want to install Ubuntu 11.10 onto a btrfs file system in raid10 mode. However, I have no clue on how I should go about that. I have tried the installer, and then creating the fs in the ...
0
votes
2answers
2k views

How to convert a btrfs file system in raid1 mode to raid0?

I've install Ubuntu 11.10 with btrfs as the / file system (was a bit of a mess to do, I'll explain if people are interested) so I can expand the primary file system into the second drive on the ...
3
votes
2answers
2k views

How does btrfs RAID work in degraded mode?

My idea was that (using loopback devices) it works like this Create the raid array sudo mkfs.btrfs -m raid1 -d raid1 /dev/loop1 /dev/loop2 You mount them sudo mount /dev/loop1 /mnt and mark them ...
1
vote
2answers
737 views

Possible/viable to make a btrfs RAID between SSD and HDD?

Since I don't use my laptop's CD-drive I want to put a small (8 GB) SSD into the CD-drive slot (I'll use a caddy similar to this one). I want to use compressed btrfs on the SSD and put all the data on ...
0
votes
2answers
2k views

Resilience of Btrfs inside RAID5

Btrfs currently lacks fsck, risking corruption if there's a power failure. To what extent, if at all, would creating a btrfs filesystem within a RAID5 array mitigate this?
1
vote
3answers
1k views

Using btrfs in RAID arrays and partitioning

Probably stupid questions but here goes: Can btrfs use only a portion of a HDD in a raid "array"? I have 3 HDDs: 80GB, 160GB, and 200GB external USB. I want to put root+boot in the first 20GB of the ...