Help with Missing Cognos Content

[actcognosuser]

After a system failure, reboot some folders in Public folders have gone missing. Also the user capabilities are missing.(like no access to cognos administration , analysis studio report studio etc). Cause is still unknown.

Do the content store tables store information about the current folders on the system?

Can one of these tables be queried ?

CMOBJNAMES This table has the names of all the objects in the content store.
CMOBJPROPS7 This table stores the XML of all reports and models. This is basically to maintain the metadata about the structure of the reports and models