Originally posted by StratComm
Distributed networks FTW. Rather than your hard-drive moving online, I'd actually see parts of the web infiltrating our PCs.
Right. Centralised data storage is
not where technology is going. There used to be things called NCs (actually, they're still used) which had no local storage and were basically dumb terminals.
Why do most businesses use PCs? Because if the network goes down, all the NCs go down too and no one gets any work done. No so with PCs.
Centralised storage has one major disadvantage: if it goes down, all the data stored on it becomes inaccessible.
Redundant data storage is inefficient, is it? What's a RAID array for, then? What's the point of backups?
The way technology is going is this:
1) Distributed redundant storage, using a system such as BitTorrent to retrieve a particular piece of data.
2) Servers acting as switchboxes, temporary storage and indexes rather than actual data storage.
3) Increasing the rate at which data can be accessed remotely,
without relying on bandwidth, using methods such as caching, multiply-redundant storage, etc.
Finally, local access will always be many times faster than remote access. Most hard drives can transfer data at about 90MB/sec. SATA can deliver up to 300MB/sec (theoretical), which is already faster than a 3-disk RAID-0 array.
Contrast that with Gigabit ethernet. How often does that come even
near theoretical speeds? Cat6 cable may be capable of those speeds when it's still in the carton, but once it's been bent around corners, run alongside power cables and cabletied to ducting its signal-carrying abilities have decreased. Furthermore, even 1Gb/sec is only 125MB/sec, half the speed of SATA. And SATA only provides for one node: the PC it's in. Gigabit backbones have to cope with traffic for many users, decreasing speed even more. Assuming a 2Gb/sec connection to a village, that's probably 600 people making use of a single connection. Including network overhead you're looking at about 1Mb/sec each, or 125KB/sec. Pathetic.
Face it: remote access is not going to be faster than local access, period. The logistics alone make it impossible. Technology can only go so far towards mitigating that.