Checking external hard disk has exact data copy?

Justin · Feb 10, 2007

I want to save my data to an external hard disk. I am a little worried that there might be "write errors", as I have read about that on Amazon reviews about external hard drives. What can I do to protect myself from that? And, now and again, is it worth checking if it has an exact copy? How can I do that? I.e. check if a folder on the external hard disk is an exact copy of one on my Macbook?
Thank you!
Justin

cwa107 · Feb 10, 2007

Justin said:
I want to save my data to an external hard disk. I am a little worried that there might be "write errors", as I have read about that on Amazon reviews about external hard drives. What can I do to protect myself from that? And, now and again, is it worth checking if it has an exact copy? How can I do that? I.e. check if a folder on the external hard disk is an exact copy of one on my Macbook?
Thank you!
Justin

Most backup software has some sort of write verification. I suggest SuperDuper which will actually create a bootable backup on your external drive. If there's any doubts, you can always boot from your backup drive and if it's works, it's a pretty safe bet that your backups are error-free.

Justin · Feb 10, 2007

cwa107 said:
Most backup software has some sort of write verification. I suggest SuperDuper which will actually create a bootable backup on your external drive. If there's any doubts, you can always boot from your backup drive and if it's works, it's a pretty safe bet that your backups are error-free.

Hmm, that looks interesting. For backing up my whole system that would probably be good. But, is there anything that actually checks if something is an exact copy, I mean with absolutely no errors or differences?

Checking external hard disk has exact data copy?

Justin

cwa107

Justin

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