My recommendation to you is to consider Linux for the NFS server platform, if you already have Linux under z/VM then deploy the NFS servers under z/VM. The reason I would suggest this is the level of NFS development currently is most focused in that area, I am unsure what other UNIXes are supported in your organization.
If you have multiple production z/VM instances on separate CEC's consider using a cluster filesystem for the underlying storage. With SLES the OCFS2 software would be my recommendation while RHEL provides GFS. With the cluster filesystem you'll then use something like heartbeat to provide for the failover mechanism. We currently have clustered NFS servers providing shares to Linux z/VM, Linux x86, Linux ppc and AIX clients in multiple environments. I have supported NFS servers since the first release on SunOS and have worked with various cluster filesystems including GPFS on AIX, AFS and OCFS for Oracle RAC. Start out by examining the following doc... http://www.novell.com/documentation/sles10/pdfdoc/heartbeat/heartbeat.pdf It has examples including NFS servers. Good luck. -- john "CHAPLIN, JAMES (CTR)" <james.chap...@as To sociates.dhs.gov> [email protected] Sent by: Linux on cc 390 Port <[email protected] Subject IST.EDU> How to set up a common USER home directory across multiple zLinux 12/23/2009 04:33 Guests PM Please respond to Linux on 390 Port <[email protected] IST.EDU> We want to create a central location for all zLinux server's user home directory located on a common server (using NFS?) with some method of failover if that server is down. Is there a file system that crosses different servers that can be mounted by one system as the user home file system, and then can fail over to another system if that (NFS holding the Home Directories) server goes down? Right now as I understand NFS, if we use an NFS to hold user home directories, if the hosting server is taken down, no one can log into any of the other zLinux guests. Can anyone point me to a sample or documentation to resolve this? James Chaplin Systems Programmer, MVS, zVM & zLinux Base Technologies, Inc Supporting the zSeries Platform Team ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
