Transaction log backups are OK for this scenario. I would be able to backup
transaction log i.e. every 2 hours, copy tl backup to the new sever, and
restore it there. It is full database backup that I cannot apply in this
scenario, because it would take too long. So if I could set secondary
database which is restored using BCV (not native backup), to standby mode,
I'd be able to apply log shipping scenario.
Even LiteSpeed wouldn't help. This database doesn't have much text fields,
so I don't think that compression would be that good. Even if I'd get 50%
compression in database backup file and time needed to restore, it is still
500GB... BTW, BCV restore of 1TB database takes 2-3 hours. Using litespeed,
it would take hours to backup, hours to copy, and hours to restore...