nick: May 2011 Archives

mantle crashed

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Today mantle crashed today and stopped in the bios with the error "HT Link SYNC Error". It booted up normally after power cycling, and we have emailed Supermicro to investigate this error. When we know everybody is back up and things are all ok again, we will upate this post. Thanks, and email if you are still having trouble.

ipv6 routing move

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Tonight I moved the ipv6 routing to our newer software router, as we did with ipv4 last Thursday. It looks like its working. Email and let us know if you are having any trouble. Thanks!

network problems at svtix

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After the problems with packet loss that started during the server move, we moved the routing from our hp layer 3 switch to our linux router we were using for bgp. It helped alot, but it has realtek ethernet chipsets (supermicro X7SLA motherboard) that are also starting to have problems. Earlier this week we noticed the kernel saying "
[891920.491578] NETDEV WATCHDOG: eth0: transmit timed out
[891920.516542] r8169: eth0: link up
" about every 20 minutes. At about 10:30 this morning it started to do that every few minutes and there is much higher packet loss to the linux router starting at the same time. 

We've been planning to setup another dedicated pc router with intel chipsets (supermicro X7SBL) this week, so that should be ready today. Hopefully it will fix things enough so we can work more on moving the rest of the xen servers to market post tower which should also help decrease the network load.

Update: We've upgraded the kernel on the router to 2.6.32 from 2.6.26 and so far its helping.

Update: We're all finished moving to this linux router now, and things seem to be working. Email support if you are still having trouble. Thanks!

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This page is a archive of recent entries written by nick in May 2011.

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