Invisible wrote:
>> Yes, there's a whole bunch of stuff going on that you, as a home user, 
>> probably won't see. Shadow copies
> 
> Added in NT over ten years ago.

I don't think so. WinXP sp1. And they weren't persistent.

>> transactional file systems
> Added in NT over ten years ago.

Uh, no. Transactional, not journaled.

>> stuff like that that lets things like your database engine running in 
>> the virtual machine know that it needs to complete all its 
>> transactions and hold off starting new ones and flush its buffers *in 
>> the virtual machine* because you're about to take a snapshot of the 
>> host's disk for backup purposes.
> 
> ....and I care because?

Well, that's what I said. As a home user, you don't care. If you're 
writing a database engine, yeah, you probably care.

A home user wouldn't also be saying "You're an idiot! You're making the 
wrong kind of Oracle backups!"

>> Or that lets you lose power halfway through upgrading a program and 
>> not have half the changes on the disk and the other half blown away. 
>> (I'm not sure how Linux handles such a thing, actually. I always 
>> assumed I had to do that sort of reliability work manually and without 
>> any support from the OS. :-)
> 
> I'd be pretty surprised if it actually works properly.

Why?

-- 
Darren New / San Diego, CA, USA (PST)

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