weird space problem with XFS

[sammael]

i have a 30GB XFS partition, on which is used ~5GB, but free space is only ~4.9 GB. in fdisk, cfdisk, qtparted, everywhere it shows that it is 30GB partition, but where are those 20GB?

i found out when i ran emerge openoffice, whichcomplained i do not have >5GB free space.

how can i fix this?

this is output of fdisk /dev/hda

Disk /dev/hda: 40.0 GB, 40007761920 bytes
240 heads, 63 sectors/track, 5168 cylinders
Units = cylinders of 15120 * 512 = 7741440 bytes

Device Boot Start End Blocks Id System
/dev/hda1 * 1 5 37768+ 83 Linux
/dev/hda2 6 72 506520 82 Linux swap / Solaris
/dev/hda3 73 5168 38525760 83 Linux

and this is output of df

Filesystem 1K-blocks Used Available Use% Mounted on
/dev/hda3 9764800 5098076 4666724 53% /
udev 322148 208 321940 1% /dev
/dev/hda1 36566 4806 29872 14% /boot
/dev/sda1 304085048 95166460 208918588 32% /mnt/stuff
none 322148 0 322148 0% /dev/shm

and finally du -s -h /
6.0G /

i do not know if any other logs would be of any help, if so, please let me know and i will post them

[batistuta]

could you output

[sammael]

alll right, here goes:

high-flyer / # df -h
Filesystem Size Used Avail Use% Mounted on
/dev/hda3 9.4G 6.3G 3.1G 67% /
udev 315M 212K 315M 1% /dev
/dev/hda1 36M 9.0M 25M 27% /boot
/dev/sda1 290G 127G 164G 44% /mnt/stuff
/dev/sda2 8.0G 3.3M 7.6G 1% /tmp
none 315M 0 315M 0% /dev/shm

i sure hope it helps, 'cause i don't now what to do next...

[DougC]

It's possible I'm being a bit thick here, but what partition is it exactly that's supposed to be 30Gb?

Is it possible you've got an unmounted partition?

[scyld]

[Sachankara]

Perhaps this might help: http://oss.sgi.com/projects/xfs/faq.html#dir2
_________________
Gentoo Hardened Linux 2.6.21 + svorak (Swedish dvorak)

[scyld]

[batistuta]

[sammael]

[batistuta]

copy all your data to another partition and then reformat. Make sure, when you copy, to use the -a flag to keep permisions. If this is not possible because you don't have an extra partition you can

- Consider getting a new hard drive (they are reaaaally cheap nowadays)
- Backup to CDrom or DVD. There are scripts for doing that (stage4) or you can use kdar. It's always good to have a backup system, and it might be a good idea to already set up one now...

[sammael]

[batistuta]

First let me say that I'm not an expert on filesystems, neither have I experienced any particular difference from one filesystem to the other. They all perform pretty much the same on my desktop. That said, I like to play with them, and I can repeat what I've read maaaany times.

reiser/Reiser4 are good for many small files. So if you run a mail server with milions of small files, you will see the difference. In a desktop, probably not much. Reiser4 is supposed to be much faster at the expense of more CPU power, which is a good thing in modern computers where HD are bottleneck. Reiser is more suceptible to fragmentation compared to ext3. This one I DID experience myself!! So I would really suggest to avoid using reiser with /usr/portage (I haven't tried reiser4 though)

So if all filesystems perform more or less the same for a desktop, I'd go for one of the following options:
- Experiment with what you like, but backup often
- Go for something safe

The safest filesystems, as far as I understand (grain of salt please) are ext3 and then reiser (not reiser4 which is not stable). My linux almost never crashes, and I almost never get a power failure. When my power supply failed was always during power-up. So in theory the shutdown problem of xfs is not a typical case, but it *could* happen. So it is up to you to evaluate whether the risk is worth it. If you ask me, I'd say playing with data is not a smart choice, specially the /home partition. But then you should evaluate that yourself. Whatever you end up doing, make sure to backup your important data often.