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Chapter 7. SafeAccess Migration Facility
The SafeAccess Migration Facility is used to perform the one time task of migrating minidisks to SFS. Once minidisks have been migrated, SafeAccess keeps track of and simulates these minidisks. The migration process is performed in three phases.
The first phase, the collection phase, gathers information about all of the minidisks on the system and stores the information in a file called SACMIGR MASTER. The SACMIGR MASTER file is used by the second and third phases of the migration process. The collection phase, called SACMIGR COLLECT, requires the CP source directory file as input. It uses the source directory to determine the existing minidisks. It then links and accesses each disk to gather information used to create the SACMIGR MASTER file. Optionaly, data from the SafeAccess Data Collection facility may be used to add information to the SACMIGR MASTER file.
The second phase, the selection phase, uses selection criteria supplied by you to select minidisks for migration. You build a SACMIGR SELECT file containing SELECT and FROMSELECTED records that are used to process the SACMIGR MASTER file. Information about the minidisks that are selected is written to the SACMIGR SELECTED output file. The SACMIGR SELECTED file is used in the third phase. You may manually edit the SACMIGR SELECTED file to fine tune the selection of minidisks to be migrated.
The third phase, the migration phase, peforms the tasks required to migrate each of the minidisks in the SACMIGR SELECTED file to SFS. Each of the three SACMIGR phases is documented in more detail later in this chapter.
Preparing for Migration
SafeAccess migration should be performed from a userid that has access to all of the data needed by SACMIGR and also all of the authorizations required to perform the migration process. See the requirements listed for each phase of the migration process later in this chapter.
The SFS filepool(s) that will be the target of the migrated data should contain enough space to house the data to be migrated. Information about the size of the data on each minidisk is listed in the SACMIGR MASTER file after running the collection phase. This information may be used to determine how much disk space is required in the SFS filepool.
Minidisks to be migrated should not be in use during the migration phase. If a user has a minidisk linked r/w during SACMIGR MIGRATE, the minidisk will not be migrated.
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