fsck question

[daniewicz]

I ran shutdown with the -F -r options to reboot my Mandriva 2005 system and force a filesystem check.

 

From syslog I see the following:

 

Mar 5 07:22:47 192 fsck: ^B

Mar 5 07:23:15 192 last message repeated 121 times

Mar 5 07:23:15 192 fsck: ^B/dev/hda1: 93083/768544 files (0.7% non-contiguous), 375795/1535932 blocks

Mar 5 07:23:15 192 rc.sysinit: Remounting root filesystem in read-write mode: succeeded

Mar 5 07:23:19 192 udev: Start udev succeeded

Mar 5 07:23:19 192 rc.sysinit: Activating swap partitions: succeeded

Mar 5 07:23:20 192 fsck: ^A/dev/hda6: |

Mar 5 07:23:20 192 fsck: ^B

Mar 5 07:23:20 192 fsck: ^A/dev/hda6: |

Mar 5 07:23:20 192 fsck: ^B

Mar 5 07:23:42 192 last message repeated 153 times

Mar 5 07:23:42 192 fsck: /dev/hda6: 3328/3981312 files (13.8% non-contiguous), 167062/7953238 blocks

 

Should I be alarmed that my swap partition has 13.8% non-contiguous?

[daniewicz]

correction:

 

/dev/hda6 is my /home, my swap is /dev/hda5 :woops:

 

so should I be alarmed that my /home is 13.8% non-contiguous?

[daniewicz]

this may be useful, I am not sure

 

$ df
Filesystem			Size  Used Avail Use% Mounted on
/dev/hda1			 5.8G  1.4G  4.2G  25% /
/dev/hda6			  30G  165M   30G   1% /home
none				  494M   40K  494M   1% /tmp

[scarecrow]

You shouldn't worry about swap, and since the usage of /home is just 1%, you shouldn't worry about that, either.

[daniewicz]

So I should expect a large amount of fragmentation if the partition is mostly empty?

[ianw1974]

Fragmentation in Linux isn't really anything to worry about from what I've heard. Sure you get a bit, like any file system, but it doesn't seem to be a worry in Linux.

 

I use reiserfs, and did a check with a script on fragmentation a couple of weeks back. Not sure why, since if I have fragmentation, I've no idea what to do to fix it anyway :P

 

I don't know of any tools for the job to sort it out. But the general consensus is, not to worry about fragmentation. Even after two or three years of use.