As an aside, if that iPhoto library has been imported into a Photos library, 
you’ll see the old and new libraries in your pictures folder showing as 
identical sizes.

If you delete the old iPhoto library, it won’t free up that amount of space 
because the images held within are ‘hard linked’ to their position in the new 
Photos library. 

It’s so when creating the new Photos library the system doesn’t have to 
duplicate all the data, it just points to the folder where the file should 
exist in the new library. The file exists technically in two places but only 
once on the drive.

Sam


MacAmbulance Ltd.
Providing Affordable Mac/PC Support and Web Development

Sam Mullen
+44 (0)7747778022
[email protected]
www.macambulance.co.uk
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On 2 Nov 2017, at 15:52, [email protected] wrote:

Well after a few minutes explaining to the Genius and discovering through Get 
info that the vm file had been created on the day I upgraded to High Sierra on 
his advice I deleted the file and all seems well.
Re Superduper - I have noticed there’s a beta but may wait for full release and 
stick with just Time Machine until then.

Incidentally, people may not have realised that High Sierra has a new handy 
memory usage helper (go to About the Mac and click on Storage). I have 
discovered that I have an old iPhoto library taking up 16GB which I can safely 
delete.
Nick

> On 2 Nov 2017, at 12:28, Sam - MacAmbulance <[email protected]> wrote:
> 
> They say support is coming, it’s in beta testing at the moment
> 
> Sam
> 
> 
> MacAmbulance Ltd.
> Providing Affordable Mac/PC Support and Web Development
> 
> Sam Mullen
> +44 (0)7747778022
> [email protected]
> www.macambulance.co.uk
> MacAmbulance Ltd. is a registered company in England & Wales, registration 
> number 8466597
> 
> This email is intended solely for the addressed recipients and may contain 
> privileged or confidential information.
> If you have received this email in error please notify the sender and delete 
> the email immediately.
> 
> 
> 
> On 2 Nov 2017, at 11:16, [email protected] wrote:
> 
> Hi Jason,
> Thanks for the explanation. Have always trusted SDuper to be on top of things 
> (from my point of view!) but obviously not the case at the moment.
> Nick
> 
>> On 2 Nov 2017, at 10:56, Jason Davies <[email protected]> wrote:
>> 
>> High Sierra updated the way disk are formatted, essentially, bringing in a 
>> new system called APFS. This was a bit like stealing Superduper's map of the 
>> tube and telling it to visit every tube station in 24 hours;)
>> 
>> If you have an SSD start-up, High Sierra would have moved you to APFS.
>> 
>> So for now, it's a case of make sure you have another back-up eg Time 
>> Machine running as Superduper is not promising to back up all your files.
>> 
>> cheers
>> J
>> 
>> On 2 Nov 2017, at 9:39, [email protected] wrote:
>> 
>> Just seen this on the Shirt Pocket/Superduper website which may explain why 
>> I couldn’t backup not that I understand the file systems.
>> 
>> 
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