If you¹re using IPoIB, you can use standard TCP/IP diagnostic tools the same way you would on an Ethernet link (ifconfig, ping, traceroute, telnet, etc.)
If you¹re using a copper-to-optical converter in your data path as well, the Emcore MIAs have link lights on them which will tell you if a physical link is present (check the documentation). I know with STP InfiniBand connectors, there is some ambiguity about terminology with some vendors and manufacturers, and the fibre arrangement doesn¹t provide a lot of wiggle room. Klaus On 1/7/08 7:56 PM, "Changer Van" <[EMAIL PROTECTED]>did etch on stone tablets: > > > On Jan 8, 2008 1:35 AM, Isaac Huang <[EMAIL PROTECTED]> wrote: >> On Mon, Jan 07, 2008 at 06:20:52PM +0800, Changer Van wrote: >>> > ...... >>> > # dmesg >>> > >>> > LustreError: 4273:0:(viblnd.c:1890:kibnal_startup()) >>> > >>> > Can't find an active port on InfiniHost_III_Ex0 >> >> It meant that viblnd couldn't find a port whose link state was active >> on the hca InfiniHost_III_Ex0, i.e. no link on the device was usable. >> >> Was there any other error messages from viblnd before this one? > There was no error messages but a related message > like 'ADDRCONF(NETDEV_UP):ipoib0: link is not ready'. >> Did you see this problem on just one node? > There are four nodes which can not mount the lustre system. > The other nodes can mount the lustre but got the following error messages: > > # dmesg > divert: not allocating divert_blk for non-ethernet device ipoib0 > ERROR : IPOIB_UD : ipoib_ud_find_dev_by_dst:(ipoib_ud_arp.c): > ip_route_output_key(127.0.0.1 <http://127.0.0.1> ) failed > new: ipoib_allow_arp_joins: 1 > ERROR : IPOIB_UD : ipoib_ud_find_dev_by_dst:(ipoib_ud_arp.c): > ip_route_output_key(11.0.0.4 <http://11.0.0.4> ) failed > ERROR : IPOIB_UD : ipoib_ud_find_dev_by_dst:(ipoib_ud_arp.c): > ip_route_output_key(11.0.0.4 <http://11.0.0.4> ) failed > ERROR : IPOIB_UD : ipoib_ud_find_dev_by_dst:(ipoib_ud_arp.c): > ip_route_output_key(11.0.0.4 <http://11.0.0.4> ) failed > > How can I check the link on the device? Thanks in advance.
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