power failure

[dcox...@gmail.com]

How does the XP Mode virtual pc in Windows 7 handle a power failure? Say you are working in Excel, do some edits and press save, do the changes get saved to the VHD immediately? When you look at the VHD file the date/time doesn't change. If it is not immediately saved to the VHD is the data lost in the event of a power failure?

[Mynews [ OK US EN ]]

<dcox...@gmail.com> wrote in message news:374f0de5-37ee-467d...@googlegroups.com...

> How does the XP Mode virtual pc in Windows 7 handle a power failure? Say you are working in Excel, do some edits and press save,
> do the changes get saved to the VHD immediately? When you look at the VHD file the date/time doesn't change. If it is not
> immediately saved to the VHD is the data lost in the event of a power failure?

No power, No saved

Have a good day

[Dave Warren]

In the last episode of
<374f0de5-37ee-467d...@googlegroups.com>,

At least in theory, the same as a physical machine. When the virtual OS
receives a "flush cache to disk" it passes this on to the host OS.

In practice, such commands are not issued when files are saved, but
rather, when the file system needs it to ensure file system consistency
and recoverability.

In general, it's no different than using a non-virtualized XP
environment, data is written within a second unless your drive is
extremely slow or overloaded.

And no, the VHD's date/time stamp won't change. The file is kept open,
the time stamp is only written when files are opened/closed.