Chapter 8. Clustering
Red Hat Enterprise Linux 5.9 adds support for the IBM iPDU fence device. For more information on the parameters of this fence device, refer to the Cluster Administration guide.
The Distributed Lock Manager (DLM) now allows tuning of DLM hash table sizes from the /etc/sysconfig/cman
file. The following parameters can be set in the /etc/sysconfig/cman
file:
DLM_LKBTBL_SIZE=<size_of_table> DLM_RSBTBL_SIZE=<size_of_table> DLM_DIRTBL_SIZE=<size_of_table>
/sys/kernel/config/dlm/cluster/lkbtbl_size /sys/kernel/config/dlm/cluster/rsbtbl_size /sys/kernel/config/dlm/cluster/dirtbl_size