Currently Being ModeratedNov 11, 2013 2:37 PM (in response to Folbo)
FYI for Synology users...I started the following thread on the Synology forums in 2012.
Synology responded to the thread a few months ago stating that they made several enhancements to Time Machine stability over wifi for mac users to help resolve this issue in the DSM 4.3 beta (release July 2013). I do not have the beta to confirm it resolves the problem (not a fan of beta software). I do not think they have come out with a new stable version of DSM yet since the beta was released. However, it looks like they are trying to address the issue.
I haven't used Time Machine in 3 years due to this issue.
Currently Being ModeratedJan 2, 2014 7:50 AM (in response to Folbo)
A Partial Answer
I use a Buffalo NAS which I connect to wirelessly and keep across the road as an off-site backup. The NAS has two drives, one of which is a Time Machine and the other is a daily mirror backup using a very reliable program called ChronoSync. My thought was that using two separate systems would provide redundancy against failure. But if Time Machine is inherently unreliable, then that purpose is defeated.
Indeed, I have had the same problems with Time Machineas everyone else in this thread. I have had to rebuild it every couple of months. Because it's a huge backup (1.5 TB) that means bringing the drive back on-site and connecting it through the gigabyte ethernet. I've found that I can save time by deleting the whole backup and starting over, rather than letting Time Machine handle it all. But even then, it takes a couple of days to rebuild, during which time my data is vulnerable to an onsite accident.
It is now time to rethink my plan. Time Machine is not a reliable backup on a remote NAS but it does seem to work when the drive is connected directly. Moverover, where Time Machine really shines is when you've overwritten or deleted something you really wanted to keep. That function doesn't require it to be offsite or on a NAS. So my new plan is to run it on a large drive inside the computer itself, and then use ChronoSync for the offsite backup. I'll then use other drive in the NAS as a second ChronoSync backup, with a weekly interval instead of daily. I could also do the NAS with RAID, but I've had problems with that, too.
I, too, wish Time Machine could be more reliable.
Currently Being ModeratedFeb 25, 2014 9:04 AM (in response to skalleman)
Am I correct in assuming that you use Time Machine to back up to some drive attached over Wi-Fi (NAS)? In that case Apple has not fixed it and according to this article will never be able to.
I have given up using TM to NAS and now use it only with a USB connection. Touch wood, everything is fine so far.