What is the minimum size of a Journal when using Distributed Consistency Groups?

The minimum configurable size for a single Dell RecoverPoint journal volume is 20 GB. This is a fixed system limit. While a Distributed Consistency Group requires a separate journal for each copy (e.g., one at the production site and one at a remote site), the minimum size of each individual journal remains 20 GB. The question asks for the minimum size of "a Journal" (singular), not the total combined journal capacity for the group. Therefore, the absolute minimum size for any single journal is 20 GB.

A. 80 GB: This is a valid journal size but far exceeds the required system minimum.
B. 40 GB: This represents the minimum total journal capacity for a basic two-site distributed group (20 GB per copy), not the minimum size of a single journal volume.
D. 10 GB: This is below the system-enforced minimum size of 20 GB for any RecoverPoint journal volume.

1. Dell EMC RecoverPoint for Virtual Machines 5.3 Administrator's Guide. In the section "Journal volume considerations," the guide states, "The minimum size of a journal volume is 20 GB." (Page 113).

2. Dell EMC RecoverPoint for Virtual Machines 5.3 Scale and Performance Guide. In the "Journal Sizing" section, it is specified that "The minimum journal size is 20 GB." (Page 10).

3. Dell EMC RecoverPoint Deploying RecoverPoint with VNX Family, Unity, VPLEX, and XtremIO Technical Notes. The "System Limits" table for RecoverPoint consistently lists the "Minimum journal volume size per copy" as 20 GB. (Page 10).