Protecting data during pool shortages
To protect data from reading and writing to the DP-VOL when the pool is full, you can apply access attributes to a volume. To do this, you need to enable the Data Retention Utility by ensuring the license is installed and by using system option mode 729. This protection method applies a Protect attribute to the DP-VOL to protect volumes against write operations when the pool is full. See Assigning an access attribute to a volume for more details.
The Protect attribute is applied to the DP-VOL and is used in conjunction with other software products. When the Protect attribute is applied to the DP-VOL, Permitted appears in the S-VOL field and 0 day appears in the Validation field of the Data Retention Utility window. However, when the Protect attribute is added to the DP-VOL with the S-VOL unacceptable attribute available in the Data Retention Utility, Not Permitted appears in the S-VOL field in the Data Retention window.