As we've merged companies, our catalog environment has become very mixed. We have catalogs on both SMS & Non-SMS volumes. Of the catalogs on the SMS volumes, some are in a systems dataset SMS pool and some are in standard production pools with lots of VSAM dataset - even VSAM clusters that belong to those catalogs.
The catalogs in the standard production SMS pools also have a standard management class which has auto-backup enabled. Backups occur daily. We've never had a backup related issue, but I've never recovered a catalog from these backups either. Per the redbook "ICF Catalog Backup & Recovery - A Practical Guide", HSM is listed as under the "Backup Utilities" section. I quote: "If the catalog resides on a SMS volume, the mangement class is used to control the backup frequency & the # of backup copies retained. This allows you to define different management classes to achieve your needs for the backup frequency, and the # of backups you want to retain for different catalogs. SMS invokes DFSMShsm, which in turn uses IDCAMS EXPORT to perform the backup. Aliases are included in the backup copy." - any mis-spellings are my own. >From the zOS1.7 "Managing Catalogs" manual: Although a catalog contains entries for SMS-managed data, the catalog itself does not have to be SMS-managed, but it is recommended that catalogs containing entries for SMS-managed data also be SMS-managed As to the problem Kees listed below, I seem to remember something about this from the early days of ICF catalogs, but haven't seen anything more recent. I did a quick check through a couple of the manuals & didn't find anything on this as a restriction, but to be honest I don't have the time available today to do a full blown search. ddk ////////////////////////////////////////////////// >>There used to be (warnings of) problems when mixing ICF catalogs and >>VSAM dataset on the same volumes. >>IIRC there was a possibility of a deadly embrace when clusters from one >>ICF catalog existed on the volume of the other ICF catalog and clusters >>of the second ICF catalog existed on the volume of the first ICF >>catalog. ************************************************************************************** This e-mail message and all attachments transmitted with it may contain legally privileged and/or confidential information intended solely for the use of the addressee(s). If the reader of this message is not the intended recipient, you are hereby notified that any reading, dissemination, distribution, copying, forwarding or other use of this message or its attachments is strictly prohibited. If you have received this message in error, please notify the sender immediately and delete this message and all copies and backups thereof. Thank you. ************************************************************************************** ---------------------------------------------------------------------- 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
