Yes, there is, but you run into data integrity problems, and data synchronization problems. If you make /usr read-only to all the systems sharing it, you can avoid both of those problems, until it comes time to add/change/remove something. Then, you're looking at methods to circumvent the problems that can cause, or re-booting all the systems at the same time to pick up the changes. (You may not need to reboot, but taking the system down to single user mode so that the file system can be unmounted and re-mounted is as close as you can get without actually rebooting.) One possibility would be to have multiple copies of /usr, and update the VM guest's CP directories to point to the most recent one so that when the system is shutdown, logged off, and back on again, it will pick up the new file system. Unless you're talking about enough images being run that DASD space is still conserved, it's kind of pointless. I don't think three images would qualify for me to deal with that hassle. NFS/GFS/XFS start looking a lot better at this point.
Mark Post -----Original Message----- From: Rama Vykunta [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 07, 2002 4:07 PM To: [EMAIL PROTECTED] Subject: Re: sharing the disk space Is there any other way without using the NFS, like something that I can do with the VM or the OS to make these partitions visible to the other images. Thanks. > I have 3 Linux Images (RH, Turbo, SuSE) on the same 390 system and I want > to know if there is a way for all three of them to share the same disk > space (I mean to share a partition between all of them). And if there is a > way, I would like to know how I can do it. How about exporting the space through NFS to the other two images?
