Backing up multiple computers over a wireless network

[olds]

Is there a back up device that will automatically back up computers over a wireless network?
Vista and XP machines. I suspect we will add a Windows 7 laptop to the mix.
TIA

Found a box I can plug into my router and do it wirelessly but I am looking for something with built in wireless. My router is at my HT and I don't want another item cluttering up the area.
http://www.westerndigital.com/en/products/Products.asp?DriveID=587

 

[DivideBYZero]

I can attest to the effectiveness of a Windows Home Server. Does Wake on Lan to bring devices out of slumber to back them up and now the agent supports Windows 7.

I have the notification add in, too, so when a backup or any other error fails I get an Email to my BlackBerry with the alert details.

 

[olds]

What are the cpu/ram specs on the machine?

 

[DivideBYZero]

I built one with 2Gb RAM, 2Tb storage, with a Dual core Celeron E1400. Runs great! I used powerline ethernet adapters to hide it away in a closet.

 

[JackMDS]

Wireless is just a substitue to wire, the backup software does not care wire or wirelessas long as there is a Network connection.

However given the sped and stability of a Wireless connection it is Not the best way to backup.

I use Acronis True Image, it has a special tool to validate a backup file.

So when ever I backup through Wireless, I run the validation too after the backup is done to make sure that I have a valid file.

 

[Emulex]

if you used nfs over udp you could probably get better resiliency than smb over tcp. i just don't bother as to have a backup abort 30 minutes in due to a wifi drop is a pisser. use a wire man.

 

[Engineer]

Does Wake on Lan to bring devices out of slumber to back them up and now the agent supports Windows 7.

Wake on Lan does't work on wireless clients as far as I know.

 

[DivideBYZero]

Wake on Lan does't work on wireless clients as far as I know.

Good point. I think the WHS Agent is doing the 'awakening' as it knows the backup window. I need to test this as I sometimes leave one of my backup up lappies on wire, but then again I have had no warning emails about lack of backup regarding it since it's been off wire over the holidays. Hmm.