Start with the hardware, specifically the shared disk. See if the performance of concurrent r/ws from two nodes is slower than from any one node. You can run hdparm -t concurrently from the two nodes. Or if you have no data on the disks, use a destructive variation of the same.
The other thing to look into would be the network. Ensure that you are using a private gige channel. Higher network latencies can cause slowdowns especially if the two nodes are ping ponging control of the same lock resource. That's as far as I can go with the info provided. If the above does not help, email with more details. Federico Renzetti wrote:
Hi all, I have 2 RHEL4ES - 2.6.9-42.ELsmp with qla2340 and DS4300 with OCFS 1.2.5 installed. With one node of the cluster everything is alright. When I mount the same partition on the 2 nodes read/write performances slow down. Does anybody know a suggestion for this? thx in advance _______________________________________________ Ocfs2-users mailing list [email protected] http://oss.oracle.com/mailman/listinfo/ocfs2-users
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