OAM Drivers

CA View migrates a SYSOUT group to optical disk when all of the following are true:
CA View migrates a SYSOUT group to optical disk when all of the following are true:
  • The SYSOUT group is archived on primary disk.
  • The SYSOUT group has or will have permanent retention status.
  • The number of days since the SYSOUT group was archived exceeds the DSK2DAYS initialization parameter.
After a SYSOUT group is migrated to secondary disk storage, it continues to reside there until it is either deleted or it expires from ERO disk retention. ERO disk retention is specified by the DGENS, DCOPIES, or DRETPD ERO table statements.
Retrieving SYSOUT Data from Optical Disk
When you select a SYSOUT group that shows a status of DSK2, PDK2, or PRM2 (all of which indicate optical disk secondary storage), CA View enables you to view or print the SYSOUT group directly.
If necessary, you can explicitly request to load the SYSOUT group back to the primary disk database using the L line command online or by using the /LOAD function when executing in batch using SARBCH.
How the Product Defines Optical Disk Objects
When migrating SYSOUT groups to optical disk storage (that is, OAM), CA View creates one or more objects for each SYSOUT group migrated. An object is stored in compressed format in a unit of up to 100 logical blocks of 32,760 bytes each; all objects, except for the last, are stored as 100 logical blocks, or 3,276,000 bytes.
Naming Optical Disk Objects
The collection name used for all objects in a single CA View database is as follows:
The object names have the format:
  • index
    Specifies the high-level index naming prefix as defined by the DSK2PARM initialization parameter
  • ddddddd
    Specifies the optical sequence number for the SYSOUT group
  • ggggggg
    Specifies the generation number for the SYSOUT group
  • ooooooo
    Specifies a sequential number starting with 1, used to identify each member of a SYSOUT group
User exit SARD05UX can be coded to modify the collection names. For more information about user exit, see the comments in the SARD05UX source code for specifications.
Deleting Optical Disk Objects
As part of its backup cycle, CA View deletes any objects that are no longer needed. This determination is based either on the global settings specified in the initialization parameters or on the entries in the Expanded Retention Option (ERO) table.