[Beowulf] NFS+XFS+SMP on kernel 2.6

Suvendra Nath Dutta sdutta at cfa.harvard.edu
Tue Jun 14 19:38:36 PDT 2005

We set up a 160 node cluster with a dual processor head node with 2GB 
RAM. The head node also has two RAID devices attached to two SCSI 
cards. These have a XFS filesystem on them and are NFS exported to the 
cluster. The head node runs very low on memory (7-8 MB). And today I 
ran into a kernel bug that crashed the system. Google suggests that I 
should upgrade to kernel 2.6.11, but that sounds very unpleasant. I am 
thinking of putting the raid boxes on a different box. Will separating 
the file-server and the head node give me back stability on the head 


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