How to move TM backups from Local drive to the NAS

This might be a better option: http://sphardy.com/web/readynas/migrati ... -readynas/

Hi,
Thanks for the link but I tried this method and it does not work.
This wont work if the TM volume on the NAS is smaller than the USB volume I am trying to copy from.
Mac disk utility will only restore to a bigger disk.....and I think they both have to be formatted the same...i.e., both Mac OS Extended (journaled) since I cant change the format on my USB drive and that is the format I used on that drive.

I have a 2TB Mac OS Extended (journaled) disk in a USB drive connected to my Mac. In the past I used this drive (as a single 2TB volume) for my TM backups. I have used up about 750GB of it already. I also used ths disk to store other stuff which I have moved to the NAS now.

I have created an 1TB TM volume on my NAS and so I want to copy all my old backups from this 2TB disk into my 1TB TM volume on my NAS so that old backups will be available via the NAS.
When I have succeeded in doing this, I will put the 2TB disk that is in my USB drive in a bay slot on the NAS since it uses a HCL compliant disk.
I know the best solution is to just keep the USB disk for backups and for any future backups just use the NAS. But I want to put everything on the NAS and then expand the volume with this 2TB disk.

Sorry to be so negative, and I really want to be positive but every time I try to do something with this Pro 6 it doesn't seem to want to work or its too bloody hard.

The only reason it would not work is if the destination sparsebundle is configured to be too small for the amount of *data* to be transferred as disk utility effectively 'reformats' the sparsebundle. Therefore initial formats are irrelevant as is the physical size of the source volume.

You don't state how this failed to work - have you actually tried it?

FYI: I have 5 macs (3 Lion, 2 Snow Leopard) backing up to a ReadyNAS where all the sparsebundles were initialised using the method I linked to

Hmmm.
Yes tried it several times.
I find I have to SSH into the NAS and "rm -rf /c/.timemachine/.Apple* mymac.sparsebundle", then turn on/off TM support in fronview every time I try it.
As I said, my USB drive volume currently has a sparsebundle of 750GB. The volume I created on the NAS (via frontview) is 1TB. So it is 250GB bigger than my USB based sparsebundle.
WIth this config, I start TM, login to user ReadyNAS, start a backup and then break out of it after say 50Mb has been copied and close down TM. I then unmount all my AFP drives and manually mount the ReadyNAS volume as user ReadyNAS. Then I start up disk Utility, I click the sparsebundle on the NAS and see that it is Mac OS Extended (Case-sensitive, journaled). My USB sparsebundle is NOT case sensative so in disk Utility I chose to Erase the TM sparsebundle and reformat with Mac OS Extended (journaled). When I do this, disk Utility unmounts the TM volume and throws up an error message : Volume Erase Failed: POSIX reports: The operation couldn’t be completed. Operation not permitted.
I then have to go back to the rm -rf as above and start over.

Remove the sparsebundle, start a TM backup again and then via SSH do

ls -laR /c/.timemachine

Check the ownership and permissions for the sparsebundle that is created.

What version of RAIDiator are you running and what version of Mac OS X?

Everything seems to be owned by user ReadyNAS, group nogroup.

/c/.timemachine/mymac.sparsebundle:
total 28
drwx--S--- 4 ReadyNAS nogroup 4096 2011-11-23 17:19 .
drwxr-xr-x 8 ReadyNAS root 4096 2011-11-23 17:19 ..
drwx--S--- 2 ReadyNAS nogroup 4096 2011-11-23 17:09 .AppleDouble
drwx--S--- 3 ReadyNAS nogroup 4096 2011-11-23 17:10 bands
-rw-r--r-- 1 ReadyNAS nogroup 532 2011-11-23 17:09 com.apple.TimeMachine.MachineID.plist
-rw-r--r-- 1 ReadyNAS nogroup 499 2011-11-23 15:16 Info.bckup
-rw-r--r-- 1 ReadyNAS nogroup 499 2011-11-23 15:16 Info.plist
-rwx------ 1 ReadyNAS nogroup 0 2011-11-23 15:16 token

Its a new Pro 6. Running RAIDiator 4.2.19. The Mac is a MacBook Pro running Snow Leopard 10.6.8.