[mythtv-users] Myth reports incorrect disk space usage?

[Tim Tait]

Henk Poley wrote:

>Op donderdag 15 juli 2004 21:00, schreef Jason Keirstead:
>  
>
>>On July 15, 2004 03:41 pm, Tim Tait wrote:
>>    
>>
>>>Wow, I didn't expect this question to draw much attention! The drive is
>>>large, so maybe the reserved root space is the reason.
>>>
>>>The df used result equates to about 6,480 MB.
>>>
>>> From Mythweb status page:
>>>  Total Space: 167,428 MB
>>>  Space Used: 15,440 MB
>>>  Space Free: 151,988 MB
>>>      
>>>
>>It is not the reserved root.
>>
>>The reserved root space only affects the amount free on the drive. It does
>>not affect the amount used by files in any way.
>>    
>>
>
>If you want to check see programs/mythbackend/mainserver.cpp for the methode 
>MainServer::getFreeSpace. It uses statfs, see 'man statfs' for that.
>
>You could also check the mythtv mailinglist archives, as someone else said, 
>this has been beaten to death before ;-)
>
>	Henk Poley <><
>
>  
>

Good info... It seems likes statfs doesn't return used, just the size 
and free quantities. I did "google" it a few times, but it didn't turn 
up anything relevant. I guess you have know the right words to look for.

stat -f /var/video
  File: "/var/video"
    ID: 0        Namelen: 255     Type: ext2/ext3
   Blocks: Total: 45155420   Free: 43496501   Available: 41202741   
Size: 4096
   Inodes: Total: 22937600   Free: 22937581


Guess what, if you subtract "Available" from "blocks total" the result 
is 15440MiB, the same as MythTV reports:) And subtracting "Free" from 
"Total" yields 6480MiB:)

I would humbly suggest that MythTV should report as used only space that 
is actually used, not merely reserved.

Tim