Time Machine issues with OS X 10.11 El Capitan

[HarryS]

Not sure this problem is related to El Capitano. I have two Macs using TimeMachine (for years), one running 10.10.5 and one running 10.11.2 (El Capitano). Both TimeMachine backups stopped working after updating the Qnap to 4.2 (from 4.1.4).

I do not see any activity from Qnap on this thread. Is this a "help yourself - we won't" forum and do I need to use a different channel for support?

- Harry

[schumaku]

Not sure this problem is related to El Capitano.

Me neither. Our El Capitan (currently on 10.11.3 Beta) Macs (various MBA, MBP, iMac) are round robin backup to a Time Capsule, a TS-119 (4.2.0 20151118), a TS-231 (4.2.0 20151118), and a TS-451 (4.2.1 20151222) daily.

I do not see any activity from Qnap on this thread. Is this a "help yourself - we won't" forum and do I need to use a different channel for support?

This is a community forum, not a support channel.

Regards,
-Kurt.

[HarryS]

Got it working again...

Entering

Code: Select all

tmutil destinationinfo

gave me this output:

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==================================================
Name        : TMBackup
Kind          : Network
URL           : afp://TimeMachine@MYQNAP(TimeMachine)._afpovertcp._tcp.local./TMBackup

Since updating to Qnap 4.2 this URL didn't work anymore.
Adding a new link with an adjusted link adds a new (and working) Backup Disk:

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sudo tmutil setdestination -a afp://TimeMachine:PASSWORD@MYQNAP/TMBackup

Replace MYQNAP by your devices name and PASSWORD by the TimeMachine password as set in the Qnap Time Machine front end (Backup xy). "sudo" requires you to enter the admin password of your Mac.

Another "tmutil destinationinfo" gave me this output:

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==================================================
Name          : TMBackup
Kind          : Network
URL           : afp://TimeMachine@MYQNAP(TimeMachine)._afpovertcp._tcp.local./TMBackup
====================================================
Name          : TMBackup
Kind          : Network
URL           : afp://TimeMachine@MYQNAP/TMBackup

Opening TimeMachine Preferences will show you both the old (not working) and the new Backup Disk. It is safe to remove the old one using the TM Preferences.
Trigger a new Backup and it should work. The old backup will be used, so this will not be a full backup. I have not found a way to add the working afp URL using the standard TM Mac front end...

I hope this helps.

- Harry

[salil_kh]

I had a similar issue. I am using the latest beta firmware version 4.2.1 dated 22 Dec 2015.

TimeMachine backups were working until I enabled myQNAPCloud. It started to fail ( unable to locate the backup on the NAS) after I setup the cloud sync. However, after disabling myQNAPCloud it started working again( I had to uncheck and check UPnP discovery services and Bonjour Services under Control Panel >> Network Services >> Service Discovery and also disable/enable TimeMachine settings under Backup Station >> Time Machine, before I could get the TimeMachine backups working again on my Mac).

I am using Mac OS X El Capitan version 10.11.2

Please let us know if anyone has got both myQNAPCloud and TimeMachine backups working at the same time. Any tips on the setup would help!

Thanks,
Salil

[xs-]

Same issue here HarryS' solution is a good one to verify.
My macbook had MYQNAP.local set as hostname. Either El Capitan or the latest QNAP fw doesn't do the .local part anymore.

[creyc]

Thanks HarryS, worked perfectly!

[steve25]

Thanks HarryS worked for me also.

[adriang]

Unfortunately this didn't work for me and now I can't seem to disconnect from NAS(AFP) as timemachine. When I try to do it in Finder, it automatically reconnects as timemachine. Does anyone know how I can fix this?

[tiagondelgado]

Failed to open session. (error 64)
The backup destination could not be added.

[nottooloud]

After it tries to connect, is there a Disconnect option? If there is, do that, and then Connect As.

[fazioestop]

Deleting all the file in .AppleDB worked for me too.
Here all the steps:
Open terminal and connect via ssh
--> ssh admin@qnapname

Write yes if ask for a confirmation and then input the admin user password

Then write the commands:
--> /share/TMBackup/.AppleDB/
Check the file list inside the folder
--> ls -a
I had these files:
__db.001
__db.002
__db.003
__db.004
cnid2.db

Then remove all the files in the folder (be sure your path is [/share/TMBackup/.AppleDB])
--> rm -rf *
Or delete manually each single file with:
--> rm filename

DONE.
Retry to reconfigure your time machine it should work now!
Tested with Os Sierra