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Thread: Disk Cloning Speed Issues
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- Join Date
- Dec 2006
Disk Cloning Speed Issues
dd if=/dev/sda | gzip -cf | curl -u USER:PASS ftp://HOST/PATH/image.gz -T -
Everything goes great for the first 2 GBs or so and I get speeds around 10-20 Mbps between the machine I'm imaging and the FTP server. After that, however, speeds drop to about 1 Mbps and don't recover.
Is this an issue with gzip only able to feed curl at that pace or is it **** performance from my FTP? Any tips for optimizing each program? Perhaps adding a "bs=1k" flag to dd or decreasing the level of encryption on gzip? The goal here is a balance between speed and file size (as it always is). I have a lot of disk space so more speed is what I'm after.