Hi:
I will detailed describe a serious problem we are facing with one of our servers, and I thank a lot in advance if someone who already
has experienced such a problem could help us.
Summarizing, we had an email Server running under LINUX, which we replaced by a better machine. Instead of having better
performance and better service levels, we have some error messages besides seeing higher load average times and slowing down.
I will now describe the former and the new environments as well as the real problem:
FORMER:
Processor: Pentium IV 1.8 Ghz Main Board: Asus P4V533 Memory: 1 GB DDR HD: Seagate IDE 40 GB Network: Encore
Operating System: Linux Red Hat 8
Some additional software: Apache, Qpopper, Sendmail, Pop-before-Smtp, SpamAssassin
NEW:
Processor: Pentium IV 3.0 Ghz HT FSB 800 MainBoard: Asus P4V800 Memory: 1 GB DDR PC3200 (400 mhz) HD: Seagate Serial ATA 120 GB Network: Intel Pila 8460
Operating System: Linux Fedora Core2, Kernel 2.6.6-1.435smp Some additional software: Apache, Qpopper, Sendmail, Relayer, SpamAssassin
PROBLEM:
On the former environment we had, of course, moments of great peak, where those Load Average Times (commands uptime or top)
went to incredible 30.x and higher. But, normally, although it had great activity for it was an emails server, it worked with good
service levels.
But now, with a really more powerfull machine and a brand new operating system, we are facing those terrible times practically all
the day long. And we feel that our daily common operations like reading/sending emails, SSH, Ftp, ordinary Linux commands are
sensibly delaying with poor response times. Besides this, dmesg command is showing lots of occurrences of error messages like
this:
hdg: dma_timer_expiry: dma status == 0x24 hdg: DMA interrupt recovery hdg: lost interrupt
So, please, if someone could see on this report details a reason or what the problem could be, please, help us as soon as possible,
for we are in real troubles, because this is a very critical server for us.
Thanks.
Mario Lima./ ____________________________ Multisites - Provedor de Soluções http://www.multisites.com.br PABX: (0xx11) 5594-1811
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