Am Samstag, 27. Oktober 2012 schrieb Michael Kjörling:

On 27 Oct 2012 18:43 +0200, from Martin@lichtvoll.de (Martin 

Steigerwald):

quoted

Possibly this could be done tabular as well, like:

                        vdb           vdc             vdd

Data, RAID 0  307,25MB        307,25MB        307,25MB
…
System,RAID1  -               8MB             8MB
…
Unused                2,23GB  2,69GB  2,24GB



I like this. But what if the filesystem has 100 disks?

Maybe I'm just not familiar enough with btrfs yet to punch an
immediate hole in the idea, but how about pivoting that table? Columns
for data values ("data, raid 0", "system, raid 1", "unused", ...) and
rows for the underlying devices? Something like this, copying the
numbers from your example. And I'm using colon here rather than comma,
because I believe that it better captures the intent.

           Data: RAID 0   System: RAID 1   Unused
/dev/vdb     307.25 MB                -        2.23 GB
/dev/vdc     307.25 MB             8 MB        2.69 GB
/dev/vdd     307.25 MB             8 MB        2.24 GB
           ============   ==============   ============
TOTAL        921.75 MB            16 MB        7.16 GB

Hmmm, good idea. I like it this way around.

It would scale better with the number of drives and there is a good way to 
place the totals.

I wonder about how to possibly include the used part of each tree. With 
mostly 5 columns it might be doable.

-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7