Incidents like this make me wonder - where does backup ever end? <snip>
Back in the my mainframe days, we would use three backups; A, B, and C.
Backups were done daily:
A --> Today
B --> Yesterday
C --> Two days ago
When tomorrow comes, then:
A --> B
B --> C
C --> A
A was kept off site a long ways away.
B was kept off site a short ways away.
C was kept on site.
The backups rotated in that manner. So you always had three days backup at any given time. The offsite was used for safety in case the building collapsed, flooded, etc.
Today, I use this system:
- I alternatively clone to an external HD on a weekly basis.
- I use Carbonite to backup real time if you will.
Many photographers burn a CD/DVD of their shoot. Just like developing film, you have the negatives. With digital you have the CD/DVDs.
The problem with having your backups at the same location is that they can be stolen or destroyed, then you have nothing. By doing your own offsite or using a commercial service, provides a good redundant backup.
If its just one click followed by a "scrape" type sound then the drive spins thats ok.
If its a "click click click click" sound its dying and you need to backup what you have now.
Yes, all drives make noise of some sort. Some are louder than others as well.
I attached an audio (MP3) clip in my post above if you want to hear a Mac start up and have a mechanical HD failure. I figured since it went, I should record it.
