> -----Original Message----- > From: [email protected] [mailto:[email protected]] > On Behalf Of Nikola Savic > Sent: Tuesday, February 15, 2011 3:09 PM > To: linux clustering > Subject: Re: [Linux-cluster] Cluster with shared storage on low budget > > Jeff Sturm wrote: > > We actually resize volumes often. Some of our storage volumes have 30 > > LUNs or more. We have so many because we've virtualized most of our > > infrastructure, and some of the hosts are single-purpose hosts. > > > > Can you please provide more information on how storage is organized? > > Are you using SAN or local hard disks in nodes? Is there mirroring of data and how is > it implemented in your system?
To answer your questions, these nodes are paravirtualized under the Xen hypervisor. The physical volumes are kept on a central storage server (commercial SAN appliance), organized into a clustered volume group by CLVM. Out of that volume group we have 30+ logical volumes, each of which are simple filesystem images, mounted as the root filesystem on one of the virtual hosts. -Jeff -- Linux-cluster mailing list [email protected] https://www.redhat.com/mailman/listinfo/linux-cluster
