There are a lot of options today compared to just a few years back when the choices were a second standby machine or tape drives.  Now, depending on the device (workstation or server -- or application on that server), we can choose options similar to the home methods above, or we can mirror or standby-virtualize the whole workstation or server.  What do I mean?

Take, for example, your laptop/desktop, email and your email server at work.  If your laptop/desktop crashes and takes two days to get it back to the way it was when it was originally assigned to you – or you wait for a replacement -- there are costs involved:

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Eric Williams