Disaster recovery (dr) asset sizing for front end terabyte (fetb) consumption

A system comprising:

• a processor;
• and memory configured to store one or more sequences of instructions which, when executed by the processor, cause the processor to carry out the steps of:
• identifying writers that are present on a host, the writers being associated with a copy service on the host and the identification comprising names of the writers, and writer types as being one of system or application writers;
• for each writer identified as a system writer, calculating a size of the system writer and checking whether a volume associated with the system writer comprises system data;
• when the volume comprises system data, marking the volume as a critical volume and obtaining a size of the critical volume;
• and
• maintaining a tally summing the sizes of the system writer and critical volume.

A computer program product, comprising a non-transitory computer-readable medium having a computer-readable program code embodied therein, the computer-readable program code adapted to be executed by one or more processors to implement a method comprising:

• identifying writers that are present on a host, the writers being associated with a copy service on the host and the identification comprising names of the writers, and writer types as being one of system or application writers;
• for each writer identified as a system writer, calculating a size of the system writer and checking whether a volume associated with the system writer comprises system data;
• when the volume comprises system data, marking the volume as a critical volume and obtaining a size of the critical volume;
• and
• maintaining a tally summing the sizes of the system writer and critical volume.