The only supported way to share file systems between images using MVS-only methods is between LPARs in a sysplex using shared HFS. You can, in theory (but I believe is not supported) share file systems in read-only mode between images in different plexes. Other options include SMB/NFS sharing, which requires TCP/IP connectivity. Sharing read/write between different plexes is incredibly dangerous; the only reason I can imagine you haven't had problems before now is because that file system wasn't written to on a regular basis/at all.
--- Kevin McKenzie External Phone: 845-435-8282, Tie-line: 8-295-8282 z/OS BCP SVT, Dept FXKA, Bldg 706/2D38 From: "Dazzo, Matt" <[email protected]> To: [email protected] Date: 05/05/2009 10:52 AM Subject: HFS file Sharing z1.9 Sent by: IBM Mainframe Discussion List <[email protected]> We are running a monplex 2 lpar environment, with a few shared DASD volumes for system folks, GRS=NONE is configured on both lpars. One lpar running zos1.7 and one running zos1.9. There are 3 HFS files that are shared between the 2 lpars on the volumes that are online to both system, this configuration was set up by someone no longer here. We tested z1.9 in both lpars this past weekend, when we ipl'd the 2nd lpar with z1.9 we noticed the msg below popped up on the other lpar. I have read chapter-9 on file sharing in the USS planning guide and found most if not all info about file sharing was sysplex related unless I missed something, is our current set up invalid for file sharing? Thanks Matt *IGW027E HFS SYS1.OMVS.SHARED.CICSTS 094 SYNC WRITE-PROTECT ERROR. RC=00000024 RSN=5B26000D IGW020I HFS WRITE-PROTECT ERROR DETECTED 095 DATA SET: SYS1.OMVS.SHARED.DB2 HAS BEEN MOUNTED R/W ON ANOTHER SYSTEM: MVS1 DATE/TIME: 03/14/2009 19:33:58.627724 THE EXPECTED CONTROL INFORMATION IS: MVS1 DATE/TIME: 03/08/2009 03:18:21.428000 FILE SYSTEM OPERATIONS ARE DISABLED UNTIL UNMOUNT AND MOUNT Matt Dazzo Sr. MVS Systems Admin Publishers Clearing House 516-944-4816 [email protected] ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
