Hi Vinicius,

No.   There is potentially a very large difference.

"VSS Fast Restore" ("file-level") must do a byte for byte copy of the
data.
This means... it is completely dependent on the size of the files to copy.
The larger the database and log files, the longer it will take.
(Think of running the COPY command, or copying files using
Windows Explorer.)

"VSS Instant Restore" has a huge advantage over "VSS Fast Restore",
especially in large Exchange environments because it uses the
hardware-assisted volume-level copy. It does not need
to get to the granularity of the file system... and it does
not need to use operating system resources to perform the copy.

Thanks,

Del

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"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 09/17/2007
02:47:37 PM:

> Ok, I got what you said about file level and volume copy, so both type
> of restores (fast restore / instant restore) can happen in just a minute
> or two? and only difference about it is the calls? Fast restore uses S.O
> system call and instant restore uses Flashcopy?
>