Ugo PARSI wrote: > Hello, > > I am having way too much problems with CMAN/DLM on a midsize cluster > (random kernel panics, freezes, random quorum dropping issues, cluster > split view, etc..) and just saw that it was more preferable to use > GULM for mid to large sized clusters and that CMAN wasn't tested on > more than 32 nodes. > > Actually, I am using the RedHat Cluster Suite only for CLVM, and some > people are saying that CLVM+GULM is supported but as I can see on the > official 'documentation' : > > http://sourceware.org/cluster/gulm/gulmusage.txt : > > 'This document does not cover setting up a block device to run on. > Mostly because CLVM doesn't work with gulm yet' > > What's the current position on that please ? > Is the documentation outdated ? Yes, it is outdated. clvmd does work with gulm. > Also, my whole infrastructure is totally virtualized (with Xen), and > it is also said that it's better to use GULM on a dedicated computer. > Anyone tried that on a dedicated virtual machine ? > 128 or 256 Megs of RAM should be enough or GULM is ressource hungry ? > gulm is resource hungry. Get as much RAM as you can ;-) I'm no expert on gulm, but I would expect that 256MB would not be enough for a cluster of over 32 nodes. -- patrick -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
