Re: No space left on device (again)

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On 25.02.2014 20:05, Jim Salter wrote:
370GB of 410GB used isn't really "fine", it's over 90% usage.

Still, 45 gigs should be free there. If those 45 gigs aren't really there then it shouldn't say they are there, imho.

That said, I'd be interested to know why btrfs fi show /dev/sda3 shows 412.54G used, but btrfs fi df /home shows 379G used...

The former also says "bytes used 371.11GB" and there's not *that* much difference between "371.11" and "369.61" gigs. The devid line seems to always say "412.54GB used 412.54GB" no matter how much is actually in use.
I have no idea what these numbers actually mean.

On 02/25/2014 11:49 AM, Marcus Sundman wrote:
Hi

I get "No space left on device" and it is unclear why:

# df -h|grep sda3
/dev/sda3       413G  368G   45G  90% /home
# btrfs filesystem show /dev/sda3
Label: 'home'  uuid: 46279061-51f4-40c2-afd0-61d6faab7f60
    Total devices 1 FS bytes used 371.11GB
    devid    1 size 412.54GB used 412.54GB path /dev/sda3

Btrfs v0.20-rc1
# btrfs filesystem df /home
Data: total=410.52GB, used=369.61GB
System: total=4.00MB, used=64.00KB
Metadata: total=2.01GB, used=1.50GB
#

So, 'data' and 'metadata' seem to be fine(?), but 'system' is a bit low. Is that it? If so, can I do something about it? Or should I look somewhere else?

I really wish I could get a warning before running out of disk space, instead of everything breaking suddenly when there seems to be lots and lots of space left.

- Marcus

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