There are no error messages.
The status of the volume when viewed from VEA -> Volumes tree, upon selecting the impacted volume, shows the below details on the right hand side pane for volume information.
Status: Healthy Formatting (Formatting)
File system type: RAW
Below is a sample view of an impacted Mirrored volume

When checking the Tasks pane from VEA, the Format task will be in a hung state.
The issue is identified as a defect.
A hotfix is now available for this issue in the current version(s) of the product(s) mentioned. Refer to the Hotfix link under Related Articles to obtain the hotfix needed to resolve the issue.
For Infoscale 8.0: Patch_8_0_00006_0_4119653
For Infoscale 8.0.1: Patch_8_0_10003_0_4115846
For Infoscale 8.0.2: Patch_8_0_20001_0_4129573