3 Replies Latest reply: Mar 24, 2013 1:46 AM by LaPastenague
MGPowell Level 1 Level 1 (0 points)

My time machine used to work well connected from my Macbook Pro (10.8.3) connected to my Synology NAS then suddenly stopped working a while ago.

I have finally got around to looking at it but cannot seem to get it to rework


I folloed all instructions on the http://pondini.org/TM/A4.html full reset option but without success.


I can view all the previous backups on the NAS by entering Time Machine but when trying to backup again now continually get "Looking for Backup Disk...."


Any ideas?

  • 1. Re: Time Machine "Looking for Backup Disk...." to Synology NAS
    LaPastenague Level 8 Level 8 (35,375 points)

    This happens when you backup to a non-apple device.. actually a TC in particular is the only apple supported network device for TM.


    Did you try a reboot of the whole network.. and you can verify the backups .. see A5 in pondiini.


    The same thing happens even on a USB drive plugged into an Airport Extreme. It can work fine for ages and then just suddenly refuses to connect. 


    See http://pondini.org/TM/Airport.html


    Did this happen when you updated to 10.8.3.. does the date of the last backup correspond to the update? It would not surprise me if they did some little tweak that took out your non-authorised backup method.


    Now I have not tried it but lots of these issues started with Lion when the security level in AFP was changed. Security for a file protocol is irrelevant on your local network so really only relevant to using BTMM and iCloud.. which was also introduced with Lion.. that is when everything went to pot.


    I would look at the Synology as running better at the older level of security and making the adjustments required on your computer.


    See http://support.apple.com/kb/ht4700


    I have a NAS and I have the same issue happen a couple of times. I am still using Snow Leopard though so the above suggestion is not a cure all.. I think you just have to accept that Apple builds a walled garden.. if you try and step out of the garden.. anything over the wall.. can be expected to behave badly on occasions. Set up another folder on the synology and start a new TM backup. Or use CCC or superduper etc..

  • 2. Re: Time Machine "Looking for Backup Disk...." to Synology NAS
    MGPowell Level 1 Level 1 (0 points)

    Am now getting the following error message


    The backup disk image “/Volumes/Marks Data-1/Mark Powell’s MacBook Pro.sparsebundle” is already in use.


    Any ideas?


    or do you think still inked to the AFP security issues above?

  • 3. Re: Time Machine "Looking for Backup Disk...." to Synology NAS
    LaPastenague Level 8 Level 8 (35,375 points)

    It is standard error for TM.. stupid thing.. sorry.. you need to eject the sparsebundle...


    See C12 here for more info.




    Try just rebooting the Synology.. I thought it was a TC fault more than a Mac fault.. but there you go.