Does the BTRFS raid bug affect ReadyNas units?

[Toyonut]

Was just reading this today: 

http://www.phoronix.com/scan.php?page=news_item&px=Btrfs-RAID-56-Is-Bad

https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg55161.html

Does this affect the BTRFS implimentation used in ReadyNas OS 6?

[mdgm-ntgr · Accepted solution]

No. We use mdadm for RAID and the BTRFS file system is used on top of that. The mdadm RAID is at a lower level than the filesystem. We've been using mdadm raid since 2008 (when we released the ReadyNAS Pro running RAIDiator 4.2.x). mdadm is very mature.

The combination of mdadm raid + BTRFS is better than mdadm + lvm + ext4

This also came up here: https://community.netgear.com/t5/Using-your-ReadyNAS/btrfs-unsafe-news/m-p/1123549#U1123549

[mdgm-ntgr · Accepted solution]

No. We use mdadm for RAID and the BTRFS file system is used on top of that. The mdadm RAID is at a lower level than the filesystem. We've been using mdadm raid since 2008 (when we released the ReadyNAS Pro running RAIDiator 4.2.x). mdadm is very mature.

The combination of mdadm raid + BTRFS is better than mdadm + lvm + ext4

This also came up here: https://community.netgear.com/t5/Using-your-ReadyNAS/btrfs-unsafe-news/m-p/1123549#U1123549

[Toyonut]

Awesome, thanks very much.