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DD copy excluding empty blocks?

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Special Forums Hardware Filesystems, Disks and Memory DD copy excluding empty blocks?
# 1  
Old 12-06-2008
DD copy excluding empty blocks?
I'm not 100% sure if this was the right place to post in but here i go:

I'm attempting to migrate a physical windows disk onto my SAN through the use of the dd copy command. I'm booting into knoppix, running dd, and then bringing the server back up into windows running on the SAN. Everything boots just fine, but what I realized is the dd command is copying the empty blocks on the disk. Not only is this greatly extending the time of the copy, but I'm losing my thin provisioning, which is a key benefit of having the SAN. I'd really like to make this a working solution so my question is: Is there any way to do a dd copy without copying the empty blocks on the drive?

Oh and resizing the partition before the copy is not an option
# 2  
Old 12-06-2008
no. dd copies all blocks from a device. you should use another cloning solution or restore from a backup.
# 3  
Old 01-06-2009
Try ntfsclone.
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