Having worked in the support sell for dedup appliances in the past year or so I've learned that there's a great lack of understanding with regards to Ethernet technologies. A common example of it is a customer who replaces a vintage VTL appliance once you get your "fast" NAS based backup appliance. They read a marketing and advertising document stating that this new NAS dedup appliance can do approximately 650 MB/s, purchase it and connect it for their LAN using multiple 1 GbE ports. They start backups to discover that their performance is well below those of both the or 4 GBs fiber channel VTL that they had just replaced. Eventually they've created an appointment to the vendor complaining concerning the speed.
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