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Re: Filespace exhaustion on '/' partition



On Du, 11 mai 14, 15:33:38, Ron Leach wrote:
> List,
> 
> We seem to have filled the available space on the '/' partition of our NFS
> server.  Because most of the server's variable data is on separate
> partitions, I'm not sure what I could remove from '/' partition.  df shows
> the problem, and the space available on the other partitions:
> 
> server4:/# df
> Filesystem           1K-blocks      Used Available Use% Mounted on
> /dev/md1               2919360   2919324        36 100% /

If Im reading this figures correctly ('df -h' is much nicer) your / has 
somewhere near 2,8 GiB and is full. Considering you have separate /usr 
(which has only some 1,2 GiB) and /var this sounds fishy.

> tmpfs                   512856         0    512856   0% /lib/init/rw
> udev                     10240       808      9432   8% /dev
> tmpfs                   512856         0    512856   0% /dev/shm
> /dev/md6             1892786624 1467249964 425536660  78% /nfs
> /dev/sda1               320310     15665    287556   6% /boot
> /dev/sdb1               320310     15665    287556   6% /boot2
> /dev/md5              39043328   2431240  36612088   7% /home
> /dev/md4                971648      4324    967324   1% /tmp
> /dev/md2               9755264   1241512   8513752  13% /usr
> /dev/md3               4872448    790660   4081788  17% /var
> server4:/#
> 
> This is a live server, relied on by several desktop systems and, to a lesser
> extent, some other servers.  The partition exported to the rest of the
> network is regularly backed up.
 
Good.

> Am I correct in thinking that I cannot, while running, shrink or grow any of
> the partitions?  Presumably I could do that if the server was offline,
> perhaps by running a partition editor from a CD or USB stick, maybe?

2,9 GiB for / with separate /usr and /var should be plenty. I'd suggest 
looking into what is using all that space.

> There is a GUI on this system but, aside from that, few if any
> 'applications'; we do run samba, but not apache, we run exim, and I notice
> that open office is installed (which will be long out of date, by now,
> anyway, and I'll remove).

These "should" reside in /usr, so in theory wouldn't help much with your 
immediate problem.

> Are there any large-ish services that are
> believed to not always be necessary on a server, and whose removal might
> release a reasonable amount of space on '/'?

See if unused Linux images are installed

    dpkg -l linux-*

Removing one could already provide some breathing space, but I would 
keep at least two around (the one in use, obviously, and next older 
one).

You might want to check the output of

    du / -hx --max-depth=1

To see where the 2,9 GiB are, but my bets are on /opt ;)

Kind regards,
Andrei
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