ONBAR and HDR

Hi all, we are trying to setup an Disaster Recovery site and thought we would use HDR to replicate data between Production instance and the secondary server on DBAR ( Disaster Backup And Recovery ) site. Assume that If I had HDR up and running for some time and after a while if HDR breaks down ( Network Failure ) for two hours and logical Logs are backed up using onbar) to Storage Manger. What happens If I want to bring HDR back online and doesn't have logs on the disk?. As the manuals says, if we start HDR after breakdown Secondary server prompts to restore the logical logs from a tape. How can I restore the logs if Iam using onbar. As onbar looks into sysutils of secondary database server and if it cannot find information about the logs what does it do?. Environment: Informix Dynamic Server 7.3 UC8 IBM-AIX 4.3.2 Backup's using onbar to ADSM Distributed Storage Manager I would appreciate if you guys could help me out and correct me if Iam missing any thing. Thanks & Regards, Ranga Potluri