I have an old headless server running Linux version 2.6.32-5-686 (Debian
2.6.32-48squeeze1) (
dannf@debian.org) (gcc version 4.3.5 (Debian 4.3.5-4)
). Recently, when I log in using ssh the terminal window freezes for a few
seconds, then usually comes back. The command line stops printing the
characters I am typing, the cursor stops blinking, and then after a few
seconds, it comes back. This happens every few minutes, so it is becoming
rather annoying.
When I check the disks, I get
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 182G 42G 131G 25% /
tmpfs 505M 0 505M 0% /lib/init/rw
udev 500M 140K 500M 1% /dev
tmpfs 505M 0 505M 0% /dev/shm
/dev/sdb1 230G 146G 72G 67% /mnt/sdb
So I am not running out of disk space.
When I run top, I get this output:
Tasks: 90 total, 3 running, 87 sleeping, 0 stopped, 0 zombie
Cpu(s): 7.0%us, 3.0%sy, 0.0%ni, 82.7%id, 6.6%wa, 0.3%hi, 0.3%si,
0.0%st
Mem: 1032748k total, 1013748k used, 19000k free, 242992k buffers
Swap: 2017272k total, 1040k used, 2016232k free, 473584k cached
So I am not running a process that is taking over the CPU.
How should I go about diagnosing this problem?
Thanks!
Mark
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