At 17:37 22/06/2002 -0400, geer@world.std.com wrote:
Not arguing, but the hardware cost curve for storage has a shorter halving time than the cost curve for CPU (Moore's Law) and the corresponding halving time for bandwidth is shorter still.
You've got a point. Storage is becoming less and less expensive per gigabyte, especially for IDE drives. If you're using a RAID set up, IDE doesn't cut it, SCSI is the way to go (for now). SCSI is a lot cheaper than it used to be, but it's still over $1000 for a single 70gig drive in Canada. For maximum redundancy in one rack-mount server, RAID 10 is the way to go. That means for every 1 drive, there must be an an exact duplicate. Costs can increase exponentially. That said, storage isn't the only expense when creating a large, fast and redundant file server (especially for caching). The fastest way to get data from a computer to the file server is via fibre channel. And fibre channel hardware isn't cheap. Last time I looked, a DIY RAID 10 system with 15 drives (1 hot-standby), case and fibre channel capability was ~ $30-35k. For each workstation that connects to it, there is a ~1k charge for the fibre channel client card. Don't even go near a fibre channel switch, they run $10-15k apiece, and don't handle more than 10-15 connections. Plus cabling. See, it adds up -- and that's just for one unit. To do the kind of data retention proposed in th EU, that is the kind of hardware that would be necessary. Plus a rack of tape backup drives running 24x7. Perhaps this sounds extreme, and it very well could be. My concern isn't so much based on what the law says must be retained, the penalties if the data isn't retained are what worry me. Could a system or network administrator be charged if the data is unavailable? What if their is a plausible reason (ie. hardware failed a year ago, fire)? What if the company cannot afford it? What charges are brought against the company? These questions are the reality for sysadmins in the EU. If Canada implemented a data retention law, I would be extremely concerned about my personal liability as well as corporate -- Canada already can charge a network administrator who the police believe is negligent in blocking (and removing) copyrighted software from computers he/she is responsible. It has happened. My understanding it has to do with an RCMP settlement over the PROMIS software scandal, but that's another topic. -- Steve