[cfarm-users] gcc110 /home is now 98% full

[Segher Boessenkool]

On Thu, Mar 07, 2024 at 09:28:13AM -0800, Bart Van Assche via cfarm-users wrote:
> 
> On 3/7/24 01:30, Martin Guy via cfarm-users wrote:
> >which usually begins to degrade above 80% and seriously above 90% if
> >I remember correctly.
> I think that there is a significant difference between log-structured
> and overwrite-in-place filesystems with regard to performance if a
> filesystem is almost full. I think the above numbers come from the
> following paper: Rosenblum, Mendel, and John K. Ousterhout. "The design
> and implementation of a log-structured file system." ACM Transactions on
> Computer Systems (TOCS) 10, no. 1 (1992): 26-52.

Disks were 50MB..150MB in those days.

gcc110:
$ df -h .
Filesystem      Size  Used Avail Use% Mounted on
/dev/md4        1.6T  1.5T   60G  97% /home

gcc135:
$ df -h .
Filesystem                      Size  Used Avail Use% Mounted on
/dev/mapper/centos_gcc135-home   25T  4.1T   21T  17% /home

gcc120:
$ df -h .
Filesystem                         Size  Used Avail Use% Mounted on
/dev/mapper/almalinux_gcc120-root   11T  962G  9.5T  10% /

(Yes, not all our machines have too small disk).


Segher