Browse Prior Art Database

Method for assigning collocated object data to a specific media type

IP.com Disclosure Number: IPCOM000032692D
Original Publication Date: 2004-Nov-10
Included in the Prior Art Database: 2004-Nov-10
Document File: 1 page(s) / 29K

Publishing Venue

IBM

Abstract

Disclosed is a method for allowing a customer to collocate object data to a specific media type utilizing the tape management system's pooling support.

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Method for assigning collocated object data to a specific media type

Disclosed is a method for assigning collocated object data to a specific media type by one global application specification. This method allows the z/OS* DFSMSdfp* OAM (Object Access Method) tape customers to add the object storage group name as the low-level qualifier to the existing OAM data set names (OAM.PRIMARY.DATA.sgname, OAM.BACKUP.DATA.sgname and OAM.BACKUP2.DATA.sgname) by optionally specifying a global parameter. The object storage group name identifies collocated object data. The system's tape management system can parse the low-level qualifier, the object storage group name, to use as criteria for determining what set of tapes (pool of tapes) should be used for a particular scratch mount, resulting in the appropriate tape pool name being appended to the mount message. Multiple tape pools can then be defined with different media types and if the length of the media is important can be defined separating longer and shorter media and also WORM (write-once read many) and rewritable media.

In order for an installation to optionally use the OAM tape data set name format with the object storage group name appended, a keyword, DSNWITHSGNAME, is added to the SETOAM statement in the CBROAMxx member of PARMLIB. This specification globally impacts all newly allocated OAM object tape data set names for the system when writing from load point. If the global specification DSNWITHSGNAME is specifie...