On Fri, Jun 3, 2016 at 6:55 AM, Austin S. Hemmelgarn <ahferro...@gmail.com> wrote:
> > That said, there are other options. If you have enough disks, you can run > BTRFS raid1 on top of LVM or MD RAID5 or RAID6, which provides you with the > benefits of both. There is a trade off. Either mdadm or lvm raid5, raid6, are more mature and stable, but it's more maintenance. You have a btrfs scrub as well as the md scrub. Btrfs on md/lvm raid56 will detect mismatches but won't be able to fix them because from its perspective there's no redundancy, except possibly metadata. So the repair has to happen on the mdadm/lvm side Make certain the kernel command timer value is greater than the driver error recovery timeout. The former is found in sysfs, per block device, the latter can be get and set with smartctl. Wrong configuration is common (it's actually the default) when using consumer drives, and inevitably leads to problems, even the loss of the entire array. It really is a terrible default. -- Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
