Sorry I unsubscribed from linux-btrfs@xxxxxxxxxxxxxxx since the traffic was a bit too high for me. On Tue, 7 Jun 2016, at 11:42 AM, Chris Murphy wrote: > Your command turned this from a 3 drive volume into a 2 drive volume, > it removed the drive you asked to be removed. I actually had 2 drives to begin with, but it wouldn't allow me to delete the drive without adding a new one, so I had 3 drives. I think I've confused you by my talk of "RAID-1 over 3 drives". I am not sure why RAIDX terminology is so confusing. All I want is for the data on one drive to be mirrored across them all. So if I add X drives, I want to X exact copies. But IIUC this changes the RAID level and everyone gets confused what I am talking about. > You're definitely missing something but once you understand how it > actually works, it'll be interesting if you have suggestions on how > the existing documentation confused you into making this mistake. Summary: I issued the remove command when I should have just removed it physically IIUC. If I was to do this again, I would unmount the raid1 mount. Take a disk physically out and then add the new one. So yes, it would be degraded but then as you mention, the newly drive will sort it out. One would hope. Thanks, -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
