Hello Whoa dd. That's low level. I tired using dd to mirror hard disks, but if my memory serves me right it required as much disk space as your needed to mirror. This is not a problem if you are going from drive to drive, but if you only have disk drive connection and you need to swap out the src drive to insert the dest drive you need the disk space for the intermediate storage.
i.e. you dd a 1 gb drive, you need 1 gb to store the image. Even if the drive only has 20MB's of files stored on it. With tar, it will backup only 20MB's and then with compression you might only need 10MB's of disk space to store the image and not a whopping 1 GB. One last thing, if you have two 1 GB drives and the number of sectors, cylinders, and heads or different (ie. different geometry), I don't think it works well. Or, if you have bad blocks on the destination drive I'm not sure if it will use them or not. i'm only sticking my neck out on this topic, because I'm not 100% about this. If you have different experiences with dd, please correct me so I will know. JD Tom Bryan <[EMAIL PROTECTED]>@trilug.org on 02/25/2002 02:35:14 PM Please respond to [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] To: [EMAIL PROTECTED] cc: Subject: Re: [TriLUG] making a disk image On Tuesday 26 February 2002 08:45 am, Ben Pitzer wrote: > Any thoughts you might have on a good disk imaging software would be > helpful. Thanks! man dd ---Tom _______________________________________________ TriLUG mailing list http://www.trilug.org/mailman/listinfo/trilug
