I've googled for this, but everything I find tends to talk about cluster and doesn't give an example close enough that I can figure this out. I have read the Red Hat Cluster Suite Configuring and Managing a Cluster http://www.redhat.com/docs/manuals/csgfs/browse/rh-cs-en/ links from http://www.redhat.com/docs/manuals/csgfs/. (I think these are mirred on centos.org, but I read them off of redhat's site)
Basically I currently have two servers. The file server is a dell power edge 2850 with an attached power vault. The power vault's file systems are all gfs. I would like to export these to a second server via gnbd. I realize I *could* use nfs, which we do use elsewhere, but I was interested in figuring out gnbd.
On the file server if I run gnbd_export -d /dev/vg_home/lv_home -e home Then on the other server modprobe gnbd and then run gnbd_import -i fileserver the devices get created can be mounted etc (well I might need to modprobe gfs before mounting) Anyways, what's the "correct" way of having this happen on boot? I've been reading the cluster docs, but I haven't found something that makes it click for me.
Hooking up the poweredge to the powervault won't work, because eventually we're getting a third server, going to put the power vault into cluster mode and directly connect it to the powervault (thus the decision to use gfs initially, instead of just a "normal" file system and exporting via nfs).
Any help would greatly be appreciated, especially helpful links.
Thanks, Bill