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This is exactly what CSE is meant for. Yes, we use it. CSE + Dirmaint shared directory + Shared disk == not quite a cluster. (I'm still holding on for cluster level split brain protection, as well as the nifty live migration in the someday SSI) - -- Pat Feller, Paul wrote: > We do that across several lpars. We run with a shared directory (DIRMAINT). > We have put code in place to verify that the Linux guest is not running on > another lpar. > > Paul Feller > AIT Mainframe Technical Support > > -----Original Message----- > From: The IBM z/VM Operating System [mailto:[email protected]] On > Behalf Of Robert J McCarthy > Sent: Monday, November 16, 2009 3:08 PM > To: [email protected] > Subject: Shared DASD across multiple VM lpars > > We have a growing VM/Linux environment with currently about 75 linux guests > spread across three VM lpars. All DASD is defined as shared. All of the > linux guests have been defined as TCPIP Layer 2; so that we can easily move > guests between lpars for performance/maintenance reasons. Each guests has > unique mini-disks for the linux 191 and DASD swap spaces. Is it advisable > to share the full volumes that these mini-disks reside on, across VM lpars; > assuming of course, that a linux guest is completely shutdown and logged > off of one lpar before it is restarted on another ? > Bob -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAksCDVMACgkQNObCqA8uBswUKwCgnIji3CF6qc1Wa+CPVF0DluJZ 3FUAn1nOzGRObXt/SAZZ7sG0OXBW4fWW =Em78 -----END PGP SIGNATURE-----
