Backup and Restore › How to Implement a Security File Backup and Recovery Plan › Create a Backup Security File on DASD

Create a Backup Security File on DASD

To begin your efforts to implement a security file backup and recovery plan, create the backup file.

We recommend that you place the backup file on a DASD that is not the same volume, unit, and channel path as the security file. When you use this method, the backup security file remains available if a failure occurs on the security file volume.

Important! When a security file is shared by multiple CPUs, only one system should be configured for BACKUP. That is, your backup file should not be shared between CPUs.

Follow these steps:

1. Edit the CAKOJCL0 member TSSMAINB.

   The CAKOJCL0 data set is available in the yourHLQ.SAMPJCL data set that was installed during product installation (where yourHLQ specifies the data set prefix for the site).

   • Ensure that the CYLS and BLOCKS parameters are identical to the CYLS and BLOCKS parameters that TSSMAINS uses to create the security file.
   • Ensure that the backup security file is the same BLKSIZE as the primary security file.
   • Leave the SECPARMS contents unchanged from the values used in TSSMAINS.
   • (Optional) Edit the ID parameter in the SECBACK member (if you want a different ID for the file).

     Your entry can contain up to eight characters. The default is ID=BACKUP.

     Important! If you change this value, your value must clearly indicate that this file is the backup security file.

   • For the VSAM file, use IDCAMS to create a separate backup VSAM file. Sample JCL is provided in CAKOJCL0 member VSAMDEF6. Specify the backup VSAM file on the VSAMFILE DD statement.

   The member is updated.

2. Run TSSMAINB.

   CA Top Secret allocates the backup security file.

3. Run VSAMDEF6.

   CA Top Secret allocates the backup VSAM file.

4. Add the following JCL statement to TSS started task procedure:

   //BACKUP    DD     DISP=SHR,DSN=backup_file
   //VSAMBKUP  DD     DISP=SHR,DSN=backup_VSAM_file
   

   backup_file

   Specifies the name of the backup security file.

   backup_VSAM_file

   Specifies the name of the backup VSAM file.