And does advance the solution to the problem any if both HSMs have to share the same control datasets.
" Within a z/OS image, only one DFSMShsm can operate in this mode (MAIN) and any other DFSMShsm host in that image must have HOSTMODE=AUX" OK then. I guess you can do it. I'm still not sure that it really is the way to go though, backup would be better. David Elliot zSeries Software Support -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Habres, Richard J Sent: Tuesday, October 12, 2010 5:00 PM To: IBM-MAIN@bama.ua.edu Subject: Re: Two HSM's on one Lpar You can run multiple HSMs within the same lpar, but they use the same control data sets and journal. They can perform different HSM functions. You would have one started as HOSTMODE=MAIN and one or more as HOSTMODE=AUX. I am not sure if this would give you the results you are looking for, but you can find more information in the DFSMSHSM IMPLEMENTATION AND CUSTOMIZATION GUIDE Richard J Habres -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Elliot, David Sent: Tuesday, October 12, 2010 5:46 PM To: IBM-MAIN@bama.ua.edu Subject: Re: Two HSM's on one Lpar Migration is not backup. I don't think you are going to do this easily with migrated data. The location of your migrated data has to match the contents of both the MCDS and the system catalog. So having migrated data both available to the system locally and at a DR site would not really help anyone in a recovery situation. Things could get very complicated if there is a mismatch. The time to create an offsite backup is prior to migration when HSM (or a separate job) does the backup. See if the HSM FRBACKUP command helps. David Elliot zSeries Software Support -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Mark Jacobs Sent: Tuesday, October 12, 2010 4:19 PM To: IBM-MAIN@bama.ua.edu Subject: Re: Two HSM's on one Lpar This client only has one lpar. Mark Jacobs -----Original Message----- From: IBM Mainframe Discussion List on behalf of Ted MacNEIL Sent: Tue 10/12/2010 5:18 PM To: IBM-MAIN@bama.ua.edu Subject: Re: Two HSM's on one Lpar >One of our clients wants selected migrated data to be dual copied and available at a DR situation. >We're trying to see if we can do so without duplicating the entire ML2 inventory which would be expensive. I've seen it done, but I don't remember the details. Again, as previously posted, you can have only one HSM per LPAR. I think you can do it by running different configs on separate LPARS (but, don't quote me). Do you have a second lpar? - I'm a SuperHero with neither powers, nor motivation! 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