Tim Smith <reply_in_group@xxxxxxxxxxxxxxxx> writes:
> In article <20070714210154.32d76b83@workstation>, ed <ed@xxxxxxxxxxx>
> wrote:
>> > > Vista keeps something called a shad°©ow copy that backs up your work
>> > > in the unused space on the hard drive. It°Øs designed to prevent
> ....
>>
>> If you alter a file, I imagine it has to copy the whole lot.
>
> Why would you imagine that?
Because Ed is clueless on anything to do with programming or Operating
Systems. He makes it up as he goes along.
>> This is such a stupid move. The harddisk is the bottle neck on most
Yes. If they did that. At the worst case they might have a delta file or
periodic copies.
>> computers. In many cases 1gib network cards can push data faster than
>> the disks, why would anyone want to make things slower? It really
>> shouldn't be part of the install.
They don't want to make anything slower. Why would they *want* to make
things slower. Oh. Hang on. You're making things up as you go along. I
forgot.
>>
>> Imagine, something like a BDB file having to be replaced hundreds of
>> times when records are updated, supposing with something like a
>> timestamp column. When a transaction is closed then the file has to be
>> copied.
Imagine a red hot poker thrust vigorously up your left nostril and then
doused with sulphuric acid. Equally unlikely to happen, but since we're
playing "lets make things up" it seems equally a apt.
>>
>> What about the registry also? Wouldn't this have to be copied time and
>> time again as it's being updated? Jesus, it's so stupid to do this by
>> default. I don't mind the idea of shadow copies, in some cases it
>> might
Yes....
>> be useful, on something like /var/www or /var/log, /etc and /home, but
>> for a registry, and /usr that's just stupid.
What *are* you talking about?
>
> It's not slow on other systems that do similar things (Linux with LVM2,
> OS X Leopard with Time Machine), so why do you assume that it must be
> slow on Windows?
Because he's making it up as he goes along.
But just for completeness:
,----
| Shadow copy is automatically turned on in Windows Vista and creates
| copies on a scheduled basis of files that have changed. Since only
| incremental changes are saved, minimal disk space is used for shadow
| copies.
`----
http://www.microsoft.com/windows/products/windowsvista/features/details/shadowcopy.mspx
Ho hum.
--
In specially marked packages only.
|
|
