Ok, thanks for that Ronni. Yes I feel too that I have a
disproportionate number of issues and likely to be caused by me. My
Dad also indicated a doubling in size of his Saprsebundle (700GB to
~1.4TB) following the first backup following his Yosemite upgrade.
I had my external drive attached as I always do which contains my
iTunes and iPhoto libraries. Perhaps if I did a MBP backup first
WITHOUT the external drive attached and then introduced the external
drive afterwards that may have made a difference.  
Fortunately it is all academic now as I blew away the Sparesbundle and
in the process of rebuilding from scratch (it was in the process still
this morning when I left for work (at around 550 of 725GB)) so
hopefully completed when I return home tonight.
On the upside I like the refreshing new look of Yosemite and the
lovely mountain scenes from Yosemite National Park included in the
desktop image library.
Regards
Pete...

----- Original Message -----
From: [email protected]
To:"WAMUG" 
Cc:
Sent:Tue, 21 Oct 2014 13:20:50 +0800
Subject:Re: Yosemite - Time Machine backup

 Hi Peter, 
  I then shut down iTunes in readiness for kicking off the backup.
When I switched on TM, it commences by "Preparing Backup", I expected
this to take a while and it did. A while later I got an error message
saying backup drive too small for this backup. I was expecting an
incremental backup not a full backup of the ~720GB of data I have all
over again. I thought here we go again.  
 I took a look in Finder at the Sparesebundle file and there was a
4.5GB sparsebundle file there and no sign of the previous ~630GB
Mavericks based Sparesebundle.   
 I've never known anyone to have so many problems/issues with Time
Machine backups / Time Capsule as you're experienced. I have used Time
Machine first on a 2TB Time Capsule before changing to a 3TB Time
Capsule with my current backups history going back to January 2012.
I've never had any problems with my 'Simultaneous Dual-Band 802.11n
Wi-Fi Network' or 'Time Machine backups' to either Time Capsule. 
 I did a final SD Bootable Backup & a TM Backup prior to installing
Yosemite (as I always do before any upgrade of the OS). I kept TWO
copies of the 5.17GB  "Install OS X Yosemite.app" - one on my Desktop
that I used to install Yosemite and another copy in my "Installers
Folder". After installation completed I went through the normal steps
of signing in to Apple ID/iCloud/Messages etc - updating databases (by
opening all Apple Apps), upgrading applications, repairing
permissions, and testing that everything worked correctly for a couple
of days before turning on Time Machine to backup. 
 Time Machine 'Preparing Backup' took a bit longer than normal (as
expected) as it read the new operating system, plus TM had not backed
up for two days. The backup went ahead and completed without any
problem. The backup was 31.90GB (which is what I expected). I tested
the backup to see the changes I had made working for two days and all
was correct. 
 So I don't have any idea 'why' or  'how' your previous  ~630GB
Mavericks Time Machine backup  'Sparsebundle' was deleted... A
Sparsebundle does not delete itself!! And what the heck is the 4.5GB
Sparsebundle? .... did you have anything connected to your Mac? 
 Your son's 13GB sounds fair - the Yosemite operating system is
8-10GB, I noticed my HD 'Used': space had increased quite
significantly after the installation. 
 Cheers,   Ronni

17" MacBook Pro 2.3GHz Quad-Core i7 “Thunderbolt"
2.3GHz / 8GB / 750GB @ 7200rpm HD

OS X 1010 Yosemite
Windows 7 Ultimate (under sufferance)

 On 20 Oct 2014, at 3:08 pm, [email protected] [1] wrote: 
Hi, across the weekend I did the Yosemite upgrade and it all went
seamlessly onto my 2014 MBP 13" Retina. As some may recall, I have
previously had a couple of issues with Time Machine backups during
non-related activities. Prior to doing the upgrade to Yosemite, I
forced a backup with the TC which completed successfully. I then
turned off Time Machine.
 Then I did the Update process with the machine connected via my
recently acquired Ethernet adapter. All this went fine. After the
download and prior to doing the install, I dragged the dmg file to my
desktop so it wouldn't auto delete and then _copied _the dmg to a
drive connected via my USB hub attached to my TC. All ok to here, no
issues. Then did the update of the MBP to Yosemite, this also ran with
no issues (backup still turned off). Sign in to iCloud all went fine
too. Then i did the iTunes update, a nice new front end UI, long
overdue though. 
 Then I trashed the Yosemite dmg from the desktop so as not to have a
further 5GB included in the backup when I had held over another copy
of it independently. 
 I then shut down iTunes in readiness for kicking off the backup. When
I switched on TM, it commences by "Preparing Backup", I expected this
to take a while and it did. A while later I got an error message
saying backup drive too small for this backup. I was expecting an
incremental backup not a full backup of the ~720GB of data I have all
over again. I thought here we go again.  
 I took a look in Finder at the Sparesebundle file and there was a
4.5GB sparsebundle file there and no sign of the previous ~630GB
Mavericks based Sparesebundle.  
 I probably did something wrong but wasn't too bothered as the
Sparsebundle was only a month old having previously deleted the
Sparesebundle and rebuilt from scratch just a month ago when I had the
previous problem following a Dropbox/Backup clash I caused 
 I am curious to know if there is anyone else who had a similar
experience with the Yosemite backup or might have a clue as to what I
did wrong. . 
 By contrast my 11yo son, did his update (on his 2012,13" MBP
non-retina) and then TM update was ~13GB without issue. Still a big
backup. 
 Regards 
 Pete.

  

Links:
------
[1] mailto:[email protected]

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