Hi Kwok,
Try to set up a content repository and configure the same in both OAC0 & OAC3. then execute the storage job.
You will not able to see the option "store" unless Content repository is maintained in "SARA".
Store jobs can be executed any point of time after CR is configured no matter how old is archive file. (Condition - Archive files should exists in the file directory.)
Thanks,
Bala.