Data Backup/Storage Using an NAS with Mac OS X and Windows

Solution 1:

In order to use the drive for both purposes, you would need to partition it into two. In my breakdown below, partition 1 is for moving data and partition 2 is for Time Machine, but this can be swapped around if you prefer.

I would recommend formatting the partition on which you access data on in ExFAT. It is newer than FAT and does not have the 4GB file size limit. It can be read and written to on both Mac (Snow Leopard and later) and Windows (Vista and later, XP with a supplementary download). This allows for easy transfer between both platforms.

I would read up on the formats that the router supports, as I cannot access an ExFAT drive connected to it. If that does not work, the best option for connecting from both platforms is FAT, but keep in mind that there is a 4GB file limit.

The other partition can then be formatted in the HFS+J format as Ethan mentioned in his comment.

In order to get the drive working remotely, I first set mine up on my Mac and started a backup. I then cancelled this and deleted it. I then attached it to my Airport Extreme and then browsed to it through Finder. I needed to access the drive before Time Machine would pick it up (on both my iMac and Air). I cannot say whether the router you link to will work in the same way or not. Please be aware that the way I am doing it is not recommended or supported by Apple and if you do a similar approach, you do so at your own risk.

Solution 2:

The G-drive is targeted at professional who needs a rugged enclosure.

For the same amount of money you can get a NAS with Time Machine support. Search for names like Synology/Thecus/WD/Seagate - pick what you like/need.

For my personal needs I just have a HP microserver and put Linux on it - works really well.

Solution 3:

Partition your disk locally first. You can't partition it while its on the network ^(easily). Use Disk Utility, click the name of your drive (not a partition) and go to the Partition tab. Click the + and adjust the size as you wish. Then, name it and change the format to MS-DOS (FAT). Click Apply to apply your changes.

Then, adding onto Alain's answer, here is a detailed explanation and instructions in Terminal on how to setup a network-attached storage device with Time Machine.

It's more complicated than it might seem, but here's a rundown of the steps provided by the above link:

Make sure that the network device is mounted. Then, open Finder and at the menu bar, click Go > Network. Double-click your storage device and enter any authentication details if needed.

You'll need to find the name of your computer on the network. Go to System Preferences > Sharing and make a note of what it says as "Computer Name."

Enter Terminal. You can find it in /Applications/Utilities.
Run defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 1 to allow Time Machine to work with devices that it normally doesn't.

Next, we'll need to find the MAC address of your computer. Run ifconfig en0 | grep ether

The output should look like ether XX:XX:XX:XX:XX:XX - make a note of everything after ether.

Next, we'll have to create a .sparsebundle for Time Machine. Read this carefully, as this is a pivotal step in the setup process.

Still in Terminal, run hdiutil create -size 100g -fs HFS+J -volname "Time Machine" NAME_XXXXXXXXXXXX.sparsebundle - where NAME is the name of your computer (all spaces will be dashes) and the X's are your MAC address without colons.

Also, make sure that the -size argument is the space you want to create for your Time Machine. This will make the partition in HFS+J however large you want. In this particular command example, we have created a 100 GB partition for Time Machine.

You can replace -size 100g with anything you want ( 50g, 150g, even OVER 9000g [but only if your NAS has this much capacity])

Next, run rsync -aE NAME_XXXXXXXXXXXX.sparsebundle /Volumes/DRIVE/. - where DRIVE is the name of your storage drive. Remember that NAME is your computer name with dashes and the X's are your MAC address without colons.

You can also simply type rsync -aE NAME_XXXXXXXXXXXX.sparsebundle and drag in your network drive icon from Finder; it'll automatically enter its name after. This step might take a few moments. Wait for it to finish; you'll know when it prints Your-Mac-Name:~ Username$ again.

Final Terminal command: rm -rf NAME_XXXXXXXXXXXX.sparsebundle to remove the copy of the .sparsebundle from your computer. After this, you can close Terminal (whew).

You can start backing up as normal now. Go to System Preferences > Time Machine and click Choose Backup Disk... and select your network drive.

Although it will show the drive's full capacity, Time Machine will be limited to the size specified in the step where you ran hdiutil create by the -size argument.

Time Machine will start backing up.