[SLE] Hard Drive thrashing?
Hello Linux folks. On my Linux server I set up masquerading and firewall for our internal network. When my wife or myself browsing Internet from any other PC behing the firewall the Linux server's hard drive is thrashing all the time. Does somebody know if it's normal? Does it have something to do with receiving and transmitting datagrams for our internal network? Thanks in advance, Alex -- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/
Is squid or some other web caching proggie running? Alexander Daniloff wrote:
Hello Linux folks. On my Linux server I set up masquerading and firewall for our internal network. When my wife or myself browsing Internet from any other PC behing the firewall the Linux server's hard drive is thrashing all the time. Does somebody know if it's normal? Does it have something to do with receiving and transmitting datagrams for our internal network? Thanks in advance, Alex
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How much main memory (RAM) is in the machine?
What are the major programs that run on the machine? Allot of processes run
on the machine? (ps aux | wc -l)
What this "typically" sounds like, is you are running out of RAM and Linux
is forced to swap out programs and data from main memory onto hard disk so
that it can have enough RAM for the program that needs to execute "next".
If it in fact is a memory problem you can do a couple things about it
1). buy more main memory (check out http://www.pricewatch.com or you
favorite memory dealer)
2). "Tweak" your system so only programs that are need are running (and
taking memory). Waste not, want not. Check out the "Small
memory mini-howto" http://www.linuxdoc.org/HOWTO/mini/Small-Memory.html
Also do a `ps aux | more` and look at all the programs running. Do you need
all of these programs running on a firewall / proxy machine? For example
you probably don't need a full blown KDE desktop with Netscape running 24/7
on a 486 machine that does nothing but filter network packets. Kill X/KDE
and just use the command line. (This is just an example, I don't know what,
if anything you are running on the machine).
If it is a workstation/server you will have to take into account "what is
more important?" Is it better to use Kmail and slow down the entire
networks IO or use elm and have no bottlenecks.
How much memory (CPU specs would be nice to) is in the firewall machine?
What else is it used for (if anything). I am willing to bet it is a memory
problem or more correctly a lack of.
Jack
----- Original Message -----
From: Alexander Daniloff
Hello Linux folks. On my Linux server I set up masquerading and firewall for our internal network. When my wife or myself browsing Internet from any other PC behing the firewall the Linux server's hard drive is thrashing all the time. Does somebody know if it's normal? Does it have something to do with receiving and transmitting datagrams for our internal network? Thanks in advance, Alex
-- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/
-- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/
Check for heavy logging. Usually these are in the /var/log/
directory. These need to be flushed to disk often.
HTH,
Jeffrey
Quoting Alexander Daniloff
Hello Linux folks. On my Linux server I set up masquerading and firewall for our internal network. When my wife or myself browsing Internet from any other PC behing the firewall the Linux server's hard drive is thrashing all the time. Does somebody know if it's normal? Does it have something to do with receiving and transmitting datagrams for our internal network? Thanks in advance, Alex
-- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/
participants (4)
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alex@daniloff.com
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jbarnett@axil.netmate.com
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mhtexcollins@austin.rr.com
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muskrat@texas.net