thanks for ur advise.
When doing the below, i supposed the transaction logs chained are not broken as there's no full backup by arc serve.
1. Daily full db backup to filesystem via SQL Maintenance Plan
2. Hourly db transaction logs backup to tape via arc serve.
So i'm just curious with arc serve, is there an options to just restore the transaction logs backup to file system?
After that, I can use the transaction logs backup with the full backup via maintenance plan to perform point in time recovery?