Originally posted by mike2000
take a cold back for system before your remove the archive

and yeap "rm" will do the trick
Why whats the need of taking a cold backup ??

As for the question. You need to find out when the last few backups were taken. Keep the archive for last two (or three) backup and remove the rest of the archive logs. To be on the safer side copy them on some tape drives (not all but say archived log 1 week older than your 3rd last backup) and then remove the archived logs.

HTH