Re: safe/necessary to balance system chunks?

2014-06-19 Thread Alex Lyakas
On Fri, Apr 25, 2014 at 10:14 PM, Hugo Mills h...@carfax.org.uk wrote: On Fri, Apr 25, 2014 at 02:12:17PM -0400, Austin S Hemmelgarn wrote: On 2014-04-25 13:24, Chris Murphy wrote: On Apr 25, 2014, at 8:57 AM, Steve Leung sjle...@shaw.ca wrote: Hi list, I've got a 3-device RAID1

safe/necessary to balance system chunks?

2014-04-25 Thread Steve Leung
Hi list, I've got a 3-device RAID1 btrfs filesystem that started out life as single-device. btrfs fi df: Data, RAID1: total=1.31TiB, used=1.07TiB System, RAID1: total=32.00MiB, used=224.00KiB System, DUP: total=32.00MiB, used=32.00KiB System, single: total=4.00MiB, used=0.00 Metadata,

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Chris Murphy
On Apr 25, 2014, at 8:57 AM, Steve Leung sjle...@shaw.ca wrote: Hi list, I've got a 3-device RAID1 btrfs filesystem that started out life as single-device. btrfs fi df: Data, RAID1: total=1.31TiB, used=1.07TiB System, RAID1: total=32.00MiB, used=224.00KiB System, DUP:

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Austin S Hemmelgarn
On 2014-04-25 13:24, Chris Murphy wrote: On Apr 25, 2014, at 8:57 AM, Steve Leung sjle...@shaw.ca wrote: Hi list, I've got a 3-device RAID1 btrfs filesystem that started out life as single-device. btrfs fi df: Data, RAID1: total=1.31TiB, used=1.07TiB System, RAID1: total=32.00MiB,

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Steve Leung
On 04/25/2014 12:12 PM, Austin S Hemmelgarn wrote: On 2014-04-25 13:24, Chris Murphy wrote: On Apr 25, 2014, at 8:57 AM, Steve Leung sjle...@shaw.ca wrote: I've got a 3-device RAID1 btrfs filesystem that started out life as single-device. btrfs fi df: Data, RAID1: total=1.31TiB,

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Austin S Hemmelgarn
On 2014-04-25 14:43, Steve Leung wrote: On 04/25/2014 12:12 PM, Austin S Hemmelgarn wrote: On 2014-04-25 13:24, Chris Murphy wrote: On Apr 25, 2014, at 8:57 AM, Steve Leung sjle...@shaw.ca wrote: I've got a 3-device RAID1 btrfs filesystem that started out life as single-device. btrfs fi

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Hugo Mills
On Fri, Apr 25, 2014 at 02:12:17PM -0400, Austin S Hemmelgarn wrote: On 2014-04-25 13:24, Chris Murphy wrote: On Apr 25, 2014, at 8:57 AM, Steve Leung sjle...@shaw.ca wrote: Hi list, I've got a 3-device RAID1 btrfs filesystem that started out life as single-device. btrfs fi

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Duncan
Austin S Hemmelgarn posted on Fri, 25 Apr 2014 14:12:17 -0400 as excerpted: On 2014-04-25 13:24, Chris Murphy wrote: On Apr 25, 2014, at 8:57 AM, Steve Leung sjle...@shaw.ca wrote: Assuming this is something that needs to be fixed, would I be able to fix this by balancing the system

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Duncan
Steve Leung posted on Fri, 25 Apr 2014 12:43:12 -0600 as excerpted: On 04/25/2014 12:12 PM, Austin S Hemmelgarn wrote: Personally, I would recommend making a full backup of all the data (tar works wonderfully for this), and recreate the entire filesystem from scratch, but passing all three

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Chris Murphy
On Apr 25, 2014, at 12:43 PM, Steve Leung sjle...@shaw.ca wrote: Once everything gets rebalanced though, I don't think I'd be missing out on any features, would I? The default nodesize/leafsize is 16KB since btrfs-progs v3.12. This isn't changed with a balance. The difference between the

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Chris Murphy
On Apr 25, 2014, at 5:03 PM, Duncan 1i5t5.dun...@cox.net wrote: But since -m/metadata includes -s/ system by default, and that was the intended way of doing things, -f/force was added as necessary when doing only -s/system, since presumably that was considered an artificial distinction, and

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Steve Leung
On Fri, 25 Apr 2014, Chris Murphy wrote: On Apr 25, 2014, at 12:43 PM, Steve Leung sjle...@shaw.ca wrote: Once everything gets rebalanced though, I don't think I'd be missing out on any features, would I? The default nodesize/leafsize is 16KB since btrfs-progs v3.12. This isn't changed

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Duncan
Austin S Hemmelgarn posted on Fri, 25 Apr 2014 15:07:40 -0400 as excerpted: I actually have a similar situation with how I have my desktop system set up, when I go about recreating the filesystem (which I do every time I upgrade either the tools or the kernel), Wow. Given that I run a git

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Chris Murphy
On Apr 25, 2014, at 8:56 PM, Steve Leung sjle...@shaw.ca wrote: Incidentally, is there a way for someone to tell what the node size currently is for a btrfs filesystem? I never noticed that info printed anywhere from any of the btrfs utilities. btrfs-show-super In case anyone's

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Duncan
Chris Murphy posted on Fri, 25 Apr 2014 19:41:43 -0600 as excerpted: OK so somehow in Steve's conversion, metadata was converted from DUP to RAID1 completely, but some portion of system was left as DUP, incompletely converted to RAID1. It doesn't seem obvious that -mconvert is what he'd use

Re: safe/necessary to balance system chunks?

2014-04-25 Thread Duncan
Steve Leung posted on Fri, 25 Apr 2014 20:56:06 -0600 as excerpted: Incidentally, is there a way for someone to tell what the node size currently is for a btrfs filesystem? I never noticed that info printed anywhere from any of the btrfs utilities. btrfs-show-super device displays that,