MVT was not broken. Are you still running it? ________________________________________ From: IBM Mainframe Discussion List [[email protected]] On Behalf Of John Mattson [[email protected]] Sent: Wednesday, April 28, 2010 3:44 PM To: [email protected] Subject: Re: ZFS
If HFS ain't broke... why "fix" it? Bruce Burgdoff <[email protected]> Sent by: IBM Mainframe Discussion List <[email protected]> 04/27/2010 10:15 AM Please respond to IBM Mainframe Discussion List <[email protected]> Expire Date: 04/27/2012 To [email protected] cc Subject ZFS Our upcoming migration from HFS to zFS for the root file systems is causing a new problem for us. The previous maintenance method was to keep the HFS root file system on the sysres with all other non-VSAM SMPE-target files. All datasets were implicitly cataloged at IPL time. By replacing the SYSRES volume a total replacement or back-off of maintenance was just an IPL away. We currently are running from a single mod 27 sysres. The rest of the HFS/ZFS file systems will be mounted from other non-SMPE impacted volumes. The zFS file systems on the other hand is subject to the special volume ownership and naming requirements of VSAM. We can no-longer use a simple full volume copies to transfer the test SYSRES to production. Further it looks like a second dump will need to be done of the test zFS root files and then a restore with the RENAMEU option run made under the production master catalog. We may even have to put the zFS files on separate sysres volumes which are "owned" by the production system catalog structure. Does this make sense or what are some other ideas to maintain the new zFS root files? ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
