[Beowulf] diskless booting over jumbo frames
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Amrik Singh asingh at ideeinc.comMon Apr 23 16:17:09 PDT 2007
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Hi Guys, We are trying to setup a cluster with jumbo frames in the hope that it would speed up the NFS. The problem is the booting of the diskless nodes. As the nodes boot, the kernel level IP configuration uses the default MTU size (1500). This results in their inability to mount the root partition from the NFS server as the server is configured to use the jumbo frames. We have already added "option interface-mtu 9000;" to the dhcpd.conf on the server, but the nodes ignore this option. We are using SuSE-linux 10.0 and kernel version is 2.6.13-15-smp. The MTU size on the server is set to 9000 and jumbo frames is enabled on the switch and everything works fine if we boot from the hard drive. thanks -- Amrik
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