Hey folks, I'm in the process of implementing a GFS cluster. A quick over of our hardware:
1 Apple xraid (with plans to bring the two others into the SAN after testing)SA 3 Dell (2x 1950 / 1x 2950) boxes, running RHEL4u5 Qlogic SANbox Qlogic HBAs lvscan of SAN volume group ACTIVE '/dev/hq-san/nlp_qa' [700.00 GB] inherit ACTIVE '/dev/hq-san/prod_reports' [1000.00 GB] inherit ACTIVE '/dev/hq-san/cam_development' [500.00 GB] inherit ACTIVE '/dev/hq-san/nlp_development' [500.00 GB] inherit ACTIVE '/dev/hq-san/svn_users' [1.50 TB] inherit We run a mixed environment of RHEL4.5 and RHEL5.1. We're currently in the process of developing a plan to shorten the OS lifecycle so we can have all of our cluster nodes in a more homogenous RHEL5.1 environement. Anyhow, we plan to scale to about 3-5x our current storage capacity and 3-4x our current server count within the next several months. That said, I need to decide know the parameters to use when creating journals--number of journals and size. I could not find any information about how the number of journals affects performance. What kind of performance impact would I see by creating 9-12 journals that we will eventually need? If the size of the filesystem is smaller than the logical volume, can the number of journals be increased? What about journal size impacting performance? If information on this already exists, could someone point me to it? Shawn -- Linux-cluster mailing list Linux-cluster@redhat.com https://www.redhat.com/mailman/listinfo/linux-cluster
