[Klug-general] disk space issue

[alan]

Note that you replace /dev/hdXY with /dev/sdb1 (or whatever your 
partition  is called)

Just tested lowering it (on a non-production server) and got another 
100GB available on /data straight away,
so seems OK to do it live.

root at otp:~# df -h /dev/sdb1
Filesystem      Size  Used Avail Use% Mounted on
/dev/sdb1       1.8T   52G  1.7T   3% /data

root at otp:~# tune2fs -m 1 /dev/sdb1
tune2fs 1.42 (29-Nov-2011)
Setting reserved blocks percentage to 1% (4883778 blocks)

root at otp:~# df -h /deb/sdb1
Filesystem      Size  Used Avail Use% Mounted on
/dev/sdb1       1.8T   52G  1.8T   3% /data
root at otp:~#


On 29/04/13 09:32, Dan Attwood wrote:
> >Have you tried running df --sync
>
> didn't know that. But I've run it and it makes no difference
>
> >ext filesystems reserve 5% of the available space
>
> The link talks about ext3 - the drive is ext4, those that make a 
> difference?
> Also I was to run the tune2fs -c 0 -i 1m /dev/hdXY command is that 
> something that then happens instantly or will this cause downtime?
>
>
>
> On 29 April 2013 09:26, Alan <alan at hipnosi.org 
> <mailto:alan at hipnosi.org>> wrote:
>
>     ext filesystems reserve 5% of the available space
>     reasons  and solution explained here:
>     https://wiki.archlinux.org/index.php/Ext3#Reclaim_Reserved_Filesystem_Space
>
>     I hope I have not misunderstood, with relevance to VM's...
>
>     On Mon, 29 Apr 2013 09:13:58 +0100
>     Dan Attwood <danattwood at gmail.com <mailto:danattwood at gmail.com>>
>     wrote:
>
>     > hi all hopefully someone can point me to a good solution to this.
>     >
>     > I have a VM server running on VMare. Recently if started to run
>     out of
>     > space on it's /var disk - which is a thin provisioned disk. We
>     gave it some
>     > more space and I rebooted the server into gparted and expanded
>     the disks
>     > into the new free space.
>     >
>     > Today I've come in to find that the /var disk had run out of space
>     > completely. I did a df -h and can see the following:
>     >
>     > Filesystem           Size   Used  Avail   use% mounted on
>     > /dev/sdb1             370G  348G  3.0G 100% /var
>     >
>     >
>     > so the 370 gig disk has only used 348 gigs and yet is 100%
>     percent full
>     >
>     > my imeadiate thought was I had run out of inodes, however:
>     >
>     > filesystem           inodes      iused    ifree       iuse%
>     > /dev/sdb1            24576000 430482 24145518    2% /var
>     >
>     > so I have loads of them free.
>     >
>     > I also rebooted the server into grparted and double checked the disk
>     > partition and also ran a disk check from here - this flagged up
>     no errors.
>     >
>     > I've now gone through and deleted some stuff to give me some
>     breathing room
>     > but I really need that space back.
>     >
>     > Does any ones have any suggestions please?
>     >
>     > Dan
>
>
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