Peter Machell wrote: > On 03/04/2006, at 5:46 PM, Tim Churches wrote: >> >> Hmm, I always though the cable (which is completely different >> technology to the more common ADSL or ADSL2 "broadband" connection) >> provided symmetrical speed - but I may hve been mistaken. > > No, 256k is as good as it gets. Was increased from 128k last year. > That's why a remote connection is much nicer on a 512/512 ADSL than on > Cable.
Yes, you and David More are completely correct - I get no more than 256kbit/s upload speed. > Be careful running services on privileged ports (< 1028) on Optus cable. > I got caught and 'banned for life'. Nope, I don't do that. Only run services on higher ports, hidden by knockd. Regarding Amazon S3, I tried some uploads from a machine with a commercial grade "direct" T1 Internet connection (or perhaps even faster, not sure). Anyway, over 200 kbytes per second upload and download speed to and from Amazon S3 was possible - so that's about 1.2GB per hour. I also retried download using my domestic Optus Cable connection and got about 160 kbytes per sec. So it looks like the rate-limiting factor for storage on Amazon S3 is the speed of one's Internet connection - the same is likely to be true of the forthcoming competitors such as Google Gdrive and OmniDrive. So on a 512/512 ADSL connection, one might achieve perhaps 40 or 50 kbytes per second upload speed - say 40. That's about 150 MB per hour, or about 18 hours to upload a 3GB encrypted backup file. That's still feasible, particularly if done weekly, on a weekend (although there is no reason why it couldn't be run during business hours). Waiting 18 or 24 hours to get your backup back in the event that you needed would be a bit annoying, however, so it would only be good as second-tier offsite backup storage, in case the surgery burnt down or similar disaster. You would still want more readily-accessible locally-stored backups to enable faster recovery in the event of a server failure or the like. The other question is: do ISPs cap and/or charge by upload volume? Some do, some don't I think. Is that correct? Tim C _______________________________________________ Gpcg_talk mailing list [email protected] http://ozdocit.org/cgi-bin/mailman/listinfo/gpcg_talk
