[OSX-Users] Re: Time Machine tip

[Tim Chown]

As Jules implies, if you had a wired connection you should shift that volume over a 1Gbit/s link in 1-2 hours, typically.  I suspect your estimate may have been based on the wifi performance.

If you’re going through one router and no firewalls, then 50Mbit/s (20GB over an hour) seems very slow for GigE. Though I don’t know how Time Machine does its thing - maybe much of the time is taken by its processes, not the network?

Might be worth asking Seb to look at the network monitoring to see if anything’s up.

Tim

> On 29 Jun 2015, at 16:06, Christopher Gutteridge <cjg at ecs.soton.ac.uk> wrote:
> 
> traceroute to mactardis.ecs.soton.ac.uk (152.78.68.161), 64 hops max, 52 byte packets
>  1  sys2010-router.core.ecs.soton.ac.uk (152.78.69.126)  0.779 ms  0.352 ms  0.309 ms
>  2  mactardis (152.78.68.161)  0.570 ms  0.349 ms  0.331 ms
> cjg-vpn:DrupalPush cjg$ 
> 
> But remember that's with me using the machine too.
> 
> None the less, the basic approach of cutting the initial backup into chewable portions has entirely solved my problem, as a workaround, and may well be of use to others in future.
> 
> On 29/06/2015 15:43, Jules Field wrote:
>> Where are you based?
>> And what does "traceroute mactardis.ecs.soton.ac.uk" produce as output?
>> 150GB in, say, 13 hours = roughly 27 - 30 Mbits/sec.
>> Sounds on the slow side.
>> 
>> Please don't omit any top-level directories once you have a complete backup. It's a *lot* quicker to recover from a complete backup. So *do* include all your Applications and such like.
>> 
>> On 29/06/2015 15:26, Christopher Gutteridge wrote:
>>> I was using wifi the first time, and Jules asked me not to do that again :)
>>> 
>>> Wifi/wired actually didn't make much difference. My disk is full past the 200Gb mark, although it's easy to exclude some obvious junk it's still 150Gb and that estimated it was going to take >12hours!
>>> 
>>> Right now I'm adding another 20Gb incrementally to my first backup and that's just estimating it'll take around an hour which is a time span I can commit to :)
>>> 
>>> On 29/06/2015 15:23, Tim Chown wrote:
>>>> Were you using WiFi?  If so, maybe use Ethernet / a wired docking point for the Big One?  
>>>> 
>>>> Tim
>>>> 
>>>>> On 29 Jun 2015, at 15:20, Christopher Gutteridge <cjg at ecs.soton.ac.uk <mailto:cjg at ecs.soton.ac.uk>> wrote:
>>>>> 
>>>>> I've been trying to get up and running using time machine to back up my mac, but the time to do the initial 200Gig means that I would have to leave my laptop in one place for a very long time which is very inconvenient.
>>>>> 
>>>>> What seems to be working better is to exclude all the big directories, and do an initial backup, then add in a few more to the backup each time. Un-excluding higher directories on the later iterations, (eg /Users/cjg ) but still excluding (/Users/cjg/music)
>>>>> 
>>>>> -- 
>>>>> Christopher Gutteridge -- http://users.ecs.soton.ac.uk/cjg <http://users.ecs.soton.ac.uk/cjg>
>>>>> 
>>>>> University of Southampton Open Data Service: http://data.southampton.ac.uk/ <http://data.southampton.ac.uk/>
>>>>> You should read the ECS Web Team blog: http://blogs.ecs.soton.ac.uk/webteam/ <http://blogs.ecs.soton.ac.uk/webteam/>
>>>>> 
>>>> 
>>> 
>>> -- 
>>> Christopher Gutteridge -- http://users.ecs.soton.ac.uk/cjg <http://users.ecs.soton.ac.uk/cjg>
>>> 
>>> University of Southampton Open Data Service: http://data.southampton.ac.uk/ <http://data.southampton.ac.uk/>
>>> You should read the ECS Web Team blog: http://blogs.ecs.soton.ac.uk/webteam/ <http://blogs.ecs.soton.ac.uk/webteam/>
>>> 
>> 
>> Jules
>> 
>> -- 
>> Jules Field MEng MBCS CITP CEng
>> email+iMessage: Jules at ecs.soton.ac.uk <mailto:Jules at ecs.soton.ac.uk>
>> Twitter: @JulesFM
>> 
>> Senior Tutor, Postmaster
>> Electronics and Computer Science
>> University of Southampton SO17 1BJ, UK
>> 
>> 'Think globally, act locally.' - Friends of the Earth
>> 
> 
> -- 
> Christopher Gutteridge -- http://users.ecs.soton.ac.uk/cjg <http://users.ecs.soton.ac.uk/cjg>
> 
> University of Southampton Open Data Service: http://data.southampton.ac.uk/ <http://data.southampton.ac.uk/>
> You should read the ECS Web Team blog: http://blogs.ecs.soton.ac.uk/webteam/ <http://blogs.ecs.soton.ac.uk/webteam/>
> 

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