Backing Store Questions

System

1) How does one know if their data is going to a backing store
in my directory \iw-store\default\inodes I see several files with handletonode.dir being the most megs but it's date is from one month ago?

2) Once I know the answer to 1) - how does one revert back to their old data via a backing store - is their some command sequence one runs?

3) I don't believe we are running a -iwfreeze when we are doing back-ups to tape - is this a problem?

Note - as I understand backing stores - it saves your content in nodes which you then if you lose your data - restore the nodes to get your content back

Finally - I'm using TS 5.5.2 SP2 on a Windows 2000 server