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10.6: Set up Time Machine on a NAS
Authored by: Clarky_X on May 08, '10 06:16:29AM

Can people help me here please. I am a bit techy but not THAT techy. I have a Thecus YES box NAS (N2100). I think I have the drives formatted as EXT3 or something. I have 2x 320GB drives in a raid array so they are mirrored. I have 4 users on the NAS that correspond to the 4 users on my Macbook which is running snow leopard. I have a folder on the NAS called backups which I think only my user account has access to but once I have this working I can add everyone else's account to.

My macbook has a 160GB HDD which has about 35GB free. On the NAS of the 320GB I have 120GB free. So for starters, will TM create a 125GB image that won't fit on the NAS or will it be compressed, I assume it will be compressed otherwise I may as well just copy everything to the NAS.

Anyway, I started by reading this thread and also the thread at http://forums.mactalk.com.au/14/70801-time-machine-backup-nas.html but although I managed to run the command that allows TM so see the NAS as a valid drive, I got an error running the hdutil command and have no idea where to go now. See below.

My mac computer name is "Stephen’s MacBook" and when I ran TM after step 1 on the aussie forum a file was created called "Stephen’s MacBook.tmp.sparsebundle".
I used the mac address of my airport card as found from system preferences network info.

The hdutil commands I ran in terminal were
hdiutil create -library SPUD -size 120g -fs Journaled HFS+ -type SPARSEBUNDLE "backup macbook" Stephen’s MacBook_xxxxxxxxxxxx.sparsebundle (mac addr removed but I didn't put the : in)
hdiutil create -size 120g -type SPARSEBUNDLE -nospotlight -volname "nasTMBak" -fs HFS+J -verbose ~/Desktop/Stephen’s MacBook_xxxxxxxxxxxx.sparsebundle -imagekey sparse-band-size=131072

and the error I got was
hdiutil: create: Only one image can be created at a time.
hdiutil: create: returning 0
Usage: hdiutil create <sizespec> [options] <imagepath>
hdiutil create -help

I don't understand what the verbose bit is, I don't understand what volname I need to use and I don't understand what the 131072 bit is.

If someone can give me a succinct explanation of what I need to do to progress to get TM to backup my macbook wirelessly to my Thecus NAS then please post reply.

Thanks all.



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10.6: Set up Time Machine on a NAS
Authored by: jcraigfletcher on May 19, '10 02:49:39AM

I found that with Snow Leopard the System UUID was necessary (on an SMB NAS). See this

http://www.insanelymac.com/forum/index.php?showtopic=184462

After I had the System UUID properly set Time Machine worked properly.



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10.6: Set up Time Machine on a NAS
Authored by: Clarky_X on Aug 23, '10 12:28:38PM

How big does the sparse bundle image need to be?
My nas has 320gb drive but only 114 free and my mac has 160 gb drive but 130 used.
I am assuming time machine compresses the backup file?



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