Disk ACEE Protection information

Products

• Disk Backup and Restore - MVS
• DISK BACKUP AND RESTORE- ADD-ON OPTIO
• DISK BACKUP AND RESTORE

Issue/Introduction

Where to find an explanation or more details about the note regarding ACEE protection using RACF's ACEECHK that is listed in the z/OS Compatibility Matrix for Disk 12.5 on z/OS.V2R4 under link - 
https://ftpdocs.broadcom.com/phpdocs/0/MSPSaccount/COMPAT/zos_compat.HTML  :

If ACEE protection enabled using RACF's ACEECHK, you also need to add Disk to the exclusion list.  
The ACEE is modified for System Administration mode and other Auto-Restore functions.  

Environment

Release : Disk Backup and Restore 12.5

Resolution

The ACEE protection is not activated by default in RACF.
If your site has enabled the RACF ACEE with SETROPTS CLASSACT(ACEECHK) and also plan to enable Disk USERMOD5, 
then be aware that message IRR421I will be issued for each step in a Disk job.

Sample message:
IRR421I ACEE modification detected for user XXXX in address space ID 0x0000003E running under user XXXXX and job name IVP01RPT while program ADSMI002 is running.
        The RACF function detecting the modification is IRRRCK00.
        Rsn=0x40000000. (ACEEPRIV is ON). Occurrences 1.
        Resource=WWWWW.STG.DISK.IVP.PDS(DATASET). Call chain: ADSMI002 

Refer the message IRR421I -
Refer to the tech doc for Installing Disk Under IBM RACF .

Top Secret does not Support ACEECHK and there are no details of when it might support it.