Click the "Modify Disk Allocation ." link below to configure change journal size. On the Disk Allocation page, select the ...

1) Click the "Modify Disk Allocation ..." link below to configure change journal size. On the Disk Allocation page, select the Protected Server tab and click Modify, then change the space allocated.
Ensure that there is at least 300 MB of free space on the volume being protected.
2)  After the protection group is modified, click the link below to run a synchronization job with consistency check.