From personal experience, I've seen none of these problems in the UK. Granted, our peak population density is about half that of big cities in the US (New York vs. London), but our national population density is an order of magnitude greater (1000 sq/mi (england) vs around 80 (USA) - or 650 sq/mi (UK) vs 80 (US)).
Seems to me that AT&T's network is just a bit crap. We have a bit more experience of running GSM networks over here!
Having said all that, O2 have had some spectacular cock ups on their data network recently, although not related to coverage/dropped calls.
The article makes an assumption that data flow within an ISPs network is free. That is not always the case. Take for example an ADSL connection. The ADSL infrastructure (metallic path, DSLAM, etc.) is often (especially in the case of non-unbundled local loops) provided by a different company from the ISP. The ISP pays this provider per byte of data that flows over the connection to and from the end user.
TimeMachine is a backup tool, not really a live versioning tool. That makes having a second volume a requirement. If you don't understand that, then you don't understand what backups are for.
I can think a few good cases for "backing up" to the same physical device.
Here are the reasons I back up data my employer's data:
Hardware failure. Disks die, tapes fail, etc. RAID helps guard against this, but it doesn't help you guard against disks that fail silently (ie, they corrupt data rather than return an error). Backups to the same device are generally useless in this case.
Software failure (bugs). Your OS writes garbage to the filesystem, or your application writes garbage. Backups to the same device can sometimes protect against data-loss in this case.
User error. User deletes files. Backups to the same device are good in this case.
Operator error. I delete files. Of course, this never happens! If it ever did, backups to the same device would probably mean I could restore the data quickly.
Copy-on-write is quite a misnomer here (even if Sun use that term). It is a Transactional filesystem. Blocks are not copied upon write, they are only written and then the transaction log is updated. It's far more clever than old-fashined COW schemes. It can be compared with NetApp's WAFL filesystem.
The currency is pounds sterling, but most places will accept euro's, at least in London.
Maybe I don't mix in the right circles, but I have never seen anyone spend a Euro in a shop in the UK, in London or not. I guess the tourist spots in London might.
Veritas VxFS has had this for years. Snapshotting has been implemented in the Linux LVM layer for ages. This is just another way to do it.
I don't know anything about the technical implementation of Vista Shadow Copies or Apple's Time Machine, but if it's anything like ZFS then I'll be impressed. I believe there are rumours about the next release of OS X using ZFS (which was developed by Sun), but I'll believe it when I see it.
Maybe they realised it was a waste of time because it doesn't work.
This may just be my experience, but I haven't come across a single CD (including some which are explicitly marked as having some sort of "Copy Protection" on them) which didn't rip first time in my PC. There's nothing special about my drive (I've used an old Matsushita DVD drive and a Plextor DVD Re-writer). Maybe it's because I am running Linux, but as far as I can tell, CD-Ex on Windows would work equally well as anything I am using under Linux.
When I say "silent" I mean "silent and vibrate". If I set a land-line to not ring, then there is no way for me to know that I have an incoming call. My mobile will vibrate discreetly in my pocket. There's no way for my land-line to do the same.
Also, 1471 will only give you the incoming number of the last call.
I wouldn't have a land-line at all except that I require it for my ADSL. It's expensive and not useful to me.
I get all the features of my mobile on my land line by diverting my land number to my mobile.
OK, now to compare the features of my landline to a non-CLI enabled, non voicemail enabled, non-ringer adjustable mobile phone...
Good luck finding one. I have a ready supply of land-line phones with none of these features (I'll let you have voicemail as it is provided by the network).
So, unless you turn it off or leave it behind, you are always at someone beck and call.
I have a few tactics for not being interrupted;
Turn the phone off. I use this when I absolutely must not be interrupted. I don't do this often.
Set to silent and ignore. I use this when I don't want to be interrupted but I do want to know I received a call. That way I can get back to the person when it is convenient for me. I use this less frequently.
Set to silent and evaluate the call when it rings. I use this more when I am happy to be interrupted. I will likely answer the call so long as it announces the CLI to me. If you hide or don't send CLI me when you ring, I am very unlikely to answer - leave me a voicemail. If I don't want to speak to you, I will not answer - leave me a voicemail. I use this very frequently.
Set the phone to ring. If I am expecting a phone call from some one that I really don't want to miss (especially if I am in a different room from my phone), I set it to ring. I don't use this very often.
This gives me four ways to screen incoming calls that I wouldn't have with a non-CLI enabled, non voicemail enabled "land" line. With a land line my options are;
Unplug phone. I will miss all calls and I will be unaware that received any.
Ignore phone. I will miss all calls. I will be aware that I received calls, but I will not be aware who rang (unless I use something like BT 1471).
Answer the phone.
I prefer the choices that a mobile gives me.
Re:So, they replaced init.
on
Ubuntu 6.10 is Out
·
· Score: 5, Informative
The four candidates were Solaris SMF, Apple's launchd, the LSB initserv/chkconfig tools and initNG.
The first two of these suffer from inescapable licence problems, which is relatively unfortunate as both have features that are somewhat appealing though neither quite fix our problems. Having whichever system we use being adopted as a Linux-wide standard would not be possible if we chose either of these two systems.
and also from discussion further down the page;
NabLa: [WWW] Apple's launchd has been [WWW] released recently under the Apache license. Would that resolve those "inescapable licence problems"? Looks like a very interesting possibility now.
ScottJamesRemnant: it still doesn't meet our requirements, so would be only a base for our own work. We've already implemented enough that it'd be a backwards step to start again based on launchd. Also the new launchd licence may not be GPL compatible, so it would still not be ideal
jec : I think that the licence (apache 2.0) is GPL compatible. But if work is already advanced on your own solution, then great! Just hope that Redhat/SuSE/Debian will adopt it...
ThomMay: it's not - [WWW] the FSF mark it as incompatible.
Indeed, Socket F has 1207 pins. There are some snippets of information and some more links available at http://en.wikipedia.org/wiki/Socket_F. We're delaying the upgrade of our cluster to wait for Socket F systems to become available (so we can compare them against Intel's latest offering at that point).
You want the latest and greatest features, but you aren't willing to cope with changing your hardware to keep up?
CPU manufacturers don't change interface designs for fun. It costs them time and money to design a new interface. They do it because the market demands new technology.
Besides, looking at recent history, Socket A, 940 and 939 have had roughly 3 years. Socket 754 was a red herring that no one in their right mind should have bought if they were looking for platform longevity.
If you compare AMD's socket strategy to Intel's (http://www.tom.womack.net/x86FAQ/faq_time.html), AMD look pretty good at developing platforms with good "socket longevity"
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From personal experience, I've seen none of these problems in the UK. Granted, our peak population density is about half that of big cities in the US (New York vs. London), but our national population density is an order of magnitude greater (1000 sq/mi (england) vs around 80 (USA) - or 650 sq/mi (UK) vs 80 (US)).
Seems to me that AT&T's network is just a bit crap. We have a bit more experience of running GSM networks over here!
Having said all that, O2 have had some spectacular cock ups on their data network recently, although not related to coverage/dropped calls.
So this thing is so advanced that it can time travel into the past and delay its own repairs?
Mozilla Weave does similar stuff... http://labs.mozilla.com/2007/12/introducing-weave/
I've been using it for a while and it's pretty good, even though it's still under lots of development.
Try looking at market cap instead;
WMT: nearly 200 Billion.
AAPL: nearly 120 Billion.
Comparisons between individual share value are pretty meaningless.
The blog is at http://www.gisdwatch.com/
The article makes an assumption that data flow within an ISPs network is free. That is not always the case. Take for example an ADSL connection. The ADSL infrastructure (metallic path, DSLAM, etc.) is often (especially in the case of non-unbundled local loops) provided by a different company from the ISP. The ISP pays this provider per byte of data that flows over the connection to and from the end user.
Aaaiiiiiieeeeee! My world has just exploded!
Good luck proving that. Previous cases are against you here.
Yes, they are. If it can receive TV signals, then you need a license.
I can think a few good cases for "backing up" to the same physical device.
Here are the reasons I back up data my employer's data:
A correction:
Copy-on-write is quite a misnomer here (even if Sun use that term). It is a Transactional filesystem. Blocks are not copied upon write, they are only written and then the transaction log is updated. It's far more clever than old-fashined COW schemes. It can be compared with NetApp's WAFL filesystem.
Maybe I don't mix in the right circles, but I have never seen anyone spend a Euro in a shop in the UK, in London or not. I guess the tourist spots in London might.
Go away MacTroll...
Veritas VxFS has had this for years. Snapshotting has been implemented in the Linux LVM layer for ages. This is just another way to do it.
I don't know anything about the technical implementation of Vista Shadow Copies or Apple's Time Machine, but if it's anything like ZFS then I'll be impressed. I believe there are rumours about the next release of OS X using ZFS (which was developed by Sun), but I'll believe it when I see it.
Maybe they realised it was a waste of time because it doesn't work.
This may just be my experience, but I haven't come across a single CD (including some which are explicitly marked as having some sort of "Copy Protection" on them) which didn't rip first time in my PC. There's nothing special about my drive (I've used an old Matsushita DVD drive and a Plextor DVD Re-writer). Maybe it's because I am running Linux, but as far as I can tell, CD-Ex on Windows would work equally well as anything I am using under Linux.
You deserve everything you get if you use grey listing at your site. It's an ugly, ugly hack.
Curse that headline. I thought this was going to be an article about the inner workings of some extreme version of Buckaroo!.
I was so disappointed when I found out it was about a sci-fi film.
Buck-A-Rooooo!
I'm not at home much - so I just divert my home phone to my mobile - gaining all the features of my mobile in one go :)
Sorry, I should have made my self clearer.
When I say "silent" I mean "silent and vibrate". If I set a land-line to not ring, then there is no way for me to know that I have an incoming call. My mobile will vibrate discreetly in my pocket. There's no way for my land-line to do the same.
Also, 1471 will only give you the incoming number of the last call.
I wouldn't have a land-line at all except that I require it for my ADSL. It's expensive and not useful to me.
I get all the features of my mobile on my land line by diverting my land number to my mobile.
Good luck finding one. I have a ready supply of land-line phones with none of these features (I'll let you have voicemail as it is provided by the network).
That's why my voicemail says "Send me an e-mail"!
I have a few tactics for not being interrupted;
This gives me four ways to screen incoming calls that I wouldn't have with a non-CLI enabled, non voicemail enabled "land" line. With a land line my options are;
I prefer the choices that a mobile gives me.
It doesn't take much to find out via the ubuntu wiki - https://wiki.ubuntu.com/ReplacementInit has lots of information on the whole implementation.
With regards to launchd, that page says;
and also from discussion further down the page;
Maybe I'm biased. I work in the High Performance Compute sector and we can never get enough CPU cycles!
Indeed, Socket F has 1207 pins. There are some snippets of information and some more links available at http://en.wikipedia.org/wiki/Socket_F. We're delaying the upgrade of our cluster to wait for Socket F systems to become available (so we can compare them against Intel's latest offering at that point).
You want the latest and greatest features, but you aren't willing to cope with changing your hardware to keep up?
CPU manufacturers don't change interface designs for fun. It costs them time and money to design a new interface. They do it because the market demands new technology.
Besides, looking at recent history, Socket A, 940 and 939 have had roughly 3 years. Socket 754 was a red herring that no one in their right mind should have bought if they were looking for platform longevity.
If you compare AMD's socket strategy to Intel's (http://www.tom.womack.net/x86FAQ/faq_time.html), AMD look pretty good at developing platforms with good "socket longevity"
One of my friends learned to do this "just in case" she had a stroke.
Some people are weird.