Hard disk lock down.

[Cho Yoonbae]

Hi,

I am operating an server with P3 850*1, 512MB, 90GB storage. (two 45GB)

blue:~# df -H
Filesystem            Size  Used Avail Use% Mounted on
/dev/hda1             2.0G  233M  1.6G  13% /
/dev/hda3              32G  2.6G   27G   9% /var
/dev/hda4              10G  646M  9.1G   7% /premium
/dev/hdb2              43G  9.2G   32G  23% /home

sometimes when my user commands "mv" or "chmod" in telnet or ftp,
directory are locked down. (under /home)
so any user(even root!) enter that directory and command in that directory
until reboot the system.

this situation is not usual. but sometimes occurs.
So I have to monitor always and reboot the system!!

another important thing is that while system is in that situation,
system's load is higher and higher. even 37 in result of  "uptime".

what cause this problem?
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