IBM DASD Emulation Optical 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 migrated to secondary disk storage, a SYSOUT group continues to reside there until deleted, or until it expires from ERO disk retention. ERO disk retention is specified by the DGENS, DCOPIES, or DRETPD ERO table statements.
How the Product Retrieves 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. If you are using CA View under VM/CMS, you must use the L command or the /LOAD function; you cannot retrieve data from optical disk by selecting it within CA View.
How the Product Defines Optical Disk Data Sets
When migrating SYSOUT groups to optical disk storage, CA View creates a separate data set for each SYSOUT group migrated. The data sets are allocated using the unit name specified in the DSK2PARM initialization parameter. CA View writes the data in compressed format in blocks, using the block size specified in the DSK2PARM parameter.
Optical Disk Naming Conventions
The data sets are assigned names in the form:
  • 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
Deleting Optical Disk Data Sets
As part of its backup cycle, CA View deletes any data set that is 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.