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View Full Version : [ubuntu] eSATA speed = USB speed



Dave In Sidney
April 22nd, 2009, 11:16 PM
I just added an ACOMData 1TB external drive to the system as a backup device. As the server's MB (MSI K7N2 Delta-L) doesn't natively support eSATA, I use an ST-Lab PCI:eSATA card that also drives an internal SATA drive (there's also an internal IDE drive in the case).

I ran 2 tests backing up the same file structure with rsync - first via USB 2.0 and then via eSATA - and both generated roughly the same speeds (2.3 MBytes/sec) from a very lightly used Hardy Heron server.

The backups are mainly JPGs and OGGs so I don't expect compression is required.

Any thoughts as to how to get the value that eSATA promises?

TIA,
Dave

Dave In Sidney
May 2nd, 2009, 11:03 PM
Resolved. After writing this I realized I was using compression in rsync.