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#4862 - 10/10/09 07:54 AM Copying compressed files under Snow Leopard
MicroMatTech3 Offline


Registered: 08/04/09
There is a blog posting by the developer of Super Duper! that has some interesting details about what happens to compressed files when they are copied by Snow Leopard using different copying engines:

Individual file compression under Snow Leopard is not maintained on the backup
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#4938 - 10/13/09 09:29 AM Re: Copying compressed files under Snow Leopard [Re: MicroMatTech3]
jchuzi Online


Registered: 08/04/09
Loc: New York State
This issue has been fixed with the SuperDuper 2.6.2 Update.
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Jon

OS 10.14.3, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365

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#4939 - 10/13/09 09:58 AM Re: Copying compressed files under Snow Leopard [Re: MicroMatTech3]
joemikeb Online

Moderator

Registered: 08/04/09
Loc: Fort Worth, Texas
Very interesting and Shirt Pocket Software is to be commended for discovering and, as JChusi pointed out, correcting in the SuperDuper 2.6.2 update.

However, what happens with Carbon Copy Cloner, Time Machine, Silverkeeper, et. al. — even drag and drop copies of compressed files remains an open question. confused I wonder too about disk space allocation when compressed files are copied to the iDisk. confused With a 50th anniversary party staring me in the face this Friday, it is safe to say my wife is not going to allow me time to experiment with this, but hopefully someone else will have sufficient intellectual curiosity and time to test using other copy methods.

I look forward to seeing the results of such testing.
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joemikeb • moderator

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#4940 - 10/13/09 10:15 AM Re: Copying compressed files under Snow Leopard [Re: joemikeb]
jchuzi Online


Registered: 08/04/09
Loc: New York State
Happy 50th, Joe. Please extend my best wishes to the missus. smile

Some marriages don't last 50 minutes, let alone 50 years. (My 42nd will be in January).
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Jon

OS 10.14.3, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365

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#4955 - 10/13/09 06:04 PM Re: Copying compressed files under Snow Leopard [Re: joemikeb]
macnerd10 Offline


Registered: 08/04/09
Loc: Los Angeles, CA
Happy birthday, Joe! My best wishes for another 50!
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Alex
3.1 GHz 13" MacBook Pro 2015, 8 GB RAM, OS 10.11.2, Office 2011, TimeWarner Cable
2.8 GHz Xeon Mac Pro 2010, 16 GB RAM, OS 10.11.2, Office 2011, LAN

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#4969 - 10/14/09 12:47 AM Re: Copying compressed files under Snow Leopard [Re: macnerd10]
artie505 Online


Registered: 08/04/09
> Happy birthday, Joe! My best wishes for another 50!

That's anniversary, Alex.


Edited by cyn (10/14/09 07:08 AM)
Edit Reason: Extraneous comment removed.
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In Memory Of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire

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#4970 - 10/14/09 12:50 AM Re: Copying compressed files under Snow Leopard [Re: joemikeb]
artie505 Online


Registered: 08/04/09
Wow...quite a milestone!

Congrats, both from me and on behalf of all who haven't seen your post.
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The new Great Equalizer is the SEND button.

In Memory Of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire

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#4983 - 10/14/09 11:52 AM Re: Copying compressed files under Snow Leopard [Re: artie505]
macnerd10 Offline


Registered: 08/04/09
Loc: Los Angeles, CA
Thanks, Artie! I really got confused; just thought our Joe is a young guy; in fact he is! Could not even think of a gold anniversary... blush
Joe, sorry for the confusion and happy, happy anniversary!
I only had a 20th this year...
_________________________
Alex
3.1 GHz 13" MacBook Pro 2015, 8 GB RAM, OS 10.11.2, Office 2011, TimeWarner Cable
2.8 GHz Xeon Mac Pro 2010, 16 GB RAM, OS 10.11.2, Office 2011, LAN

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#5005 - 10/14/09 04:41 PM Re: Copying compressed files under Snow Leopard [Re: MicroMatTech3]
dkmarsh Offline

Moderator

Registered: 08/04/09

You might find some of John Siracusa's discussion of compression under Snow Leopard to be of interest (scroll down to Installation footprint).
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dkmarsh • member, FineTunedMac Co-op Board of Directors

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Moderator:  alternaut, dkmarsh, joemikeb