-- HenningFehrmann - 24 Jul 2008

abstract

This page contains detected symptoms and the corresponding hardware problems. It is based on experiences. See the list of BrokenHardware. In some cases it helps to boot a live system. Go onto the FAI server and run ~/bin/live.sh IP_address as loki.

hardware problems

node hangs in the FAI installation

symptoms

  1. quit often you can see already Error messages while booting the CMOS
  2. boot the system with a live system, e.g., grml
  3. the write velocity on the nodes is very slow: 4k/s instead of 45 M/s, but smartctl does not return an error. * smartctl /dev/sda.. * dd if=/dev/zero of=/dev/sda.. * dstat 5
  4. try a dosboot and flash the BIOS, if the flashing tool is reports an error, exchange the

solution

Exchange the board.

ipmitool sdr shows nr everywhere

symptoms

  1. has the ipmicard or board been exchanged?

solution

Do a dosboot and flash the BIOS and the IPMI card.

ipmitool sdr reports a non-working fan

symptoms

Only one or two fans seem to be non-working.

solution

Most often the problem can be solved by simply restarting the node.

NIC 1 does not work

symptoms

  1. dhclient eth0 does not get ip address
  2. no contact to ups
  3. no SNMP contact

solution

  • is mac address being served via the dhcp server?
  • cable fine and connected?
  • motherboard exchange

DocumentationForm edit

Title How to recognize and handle known hardware issues
Description This page contains detected symptoms and the corresponding hardware problems and their solution.
Tags hardware problems solution
Category Admin
This topic: ATLAS > WebHome > GeneralDocumentation > HardwareRepair
Topic revision: 10 Feb 2012, ArthurVarkentin
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