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Re: Encrypt existing Time Machine backups?

From John Somerset <somerset@nospam.com>
Newsgroups comp.sys.mac.apps, comp.sys.mac.hardware.storage, comp.sys.mac.system
Subject Re: Encrypt existing Time Machine backups?
Date 2015-10-11 19:56 -0400
Organization A noiseless patient Spider
Message-ID <mvesrs$7l4$1@dont-email.me> (permalink)
References (4 earlier) <JsidnQBK9d-lO4fLnZ2dnUU7-TGdnZ2d@earthlink.com> <d7vnecFe519U1@mid.individual.net> <cYKdncTRMJ_uLofLnZ2dnUU7-UednZ2d@earthlink.com> <1mc4v7w.18agada1f1q1iwN%nmassello@yahoo.com> <zZSdnYL6eciIdYfLnZ2dnUU7-XWdnZ2d@earthlink.com>

Cross-posted to 3 groups.

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On 10/11/15 6:52 PM, Ant wrote:
> In comp.sys.mac.apps Neill Massello <nmassello@yahoo.com> wrote:
>> Ant <ANTant@zimage.com> wrote:
>
>>> Oh. I'll try that then.
>
>> Just be aware that doing so will convert the Time Machine disk into a
>> CoreStorage volume that can't be repartitioned with the Disk Utility
>> app. You'll have to use the diskutil command in Terminal.
>
> Also, is this true from
> https://discussions.apple.com/message/29093757#29093757's post about
> encrypted TMs making things harder to be portable, recover, etc.?:
>
> "Potentially.  Hard disks are glacial, which means the encryption isn't
> that much of an added burden.   The usual trade-offs are the loss of
> keys, difficulties with portability across operating systems, and the
> need for a long and random key for reasonable security."
>
Oh, I thought that encrypting a disk, as with Filevault, meant the whole 
disk had to be unencrypted to work. If memory can grab only what it 
needs, that sounds much faster.

I found the encryption option in the preferences of TM in El Capitan. 
It was greyed, so I guess I'd have to do what JR said.

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Thread

Encrypt existing Time Machine backups? ANTant@zimage.com (Ant) - 2015-10-11 12:37 -0500
  Re: Encrypt existing Time Machine backups? Jolly Roger <jollyroger@pobox.com> - 2015-10-11 17:45 +0000
    Re: Encrypt existing Time Machine backups? Alan Browne <alan.browne@freelunchvideotron.ca> - 2015-10-11 13:57 -0400
      Re: Encrypt existing Time Machine backups? ANTant@zimage.com (Ant) - 2015-10-11 13:05 -0500
      Re: Encrypt existing Time Machine backups? Jolly Roger <jollyroger@pobox.com> - 2015-10-11 18:07 +0000
        Re: Encrypt existing Time Machine backups? ANTant@zimage.com (Ant) - 2015-10-11 13:11 -0500
          Re: Encrypt existing Time Machine backups? Jolly Roger <jollyroger@pobox.com> - 2015-10-11 18:17 +0000
            Re: Encrypt existing Time Machine backups? ANTant@zimage.com (Ant) - 2015-10-11 14:07 -0500
              Re: Encrypt existing Time Machine backups? nmassello@yahoo.com (Neill Massello) - 2015-10-11 15:16 -0600
                Re: Encrypt existing Time Machine backups? Alan Browne <alan.browne@freelunchvideotron.ca> - 2015-10-11 17:37 -0400
                Re: Encrypt existing Time Machine backups? ANTant@zimage.com (Ant) - 2015-10-11 17:48 -0500
                Re: Encrypt existing Time Machine backups? nospam <nospam@nospam.invalid> - 2015-10-11 18:53 -0400
                Re: Encrypt existing Time Machine backups? ANTant@zimage.com (Ant) - 2015-10-11 17:58 -0500
                Re: Encrypt existing Time Machine backups? nmassello@yahoo.com (Neill Massello) - 2015-10-12 00:38 -0600
                Re: Encrypt existing Time Machine backups? nospam <nospam@nospam.invalid> - 2015-10-12 12:01 -0400
                Re: Encrypt existing Time Machine backups? nmassello@yahoo.com (Neill Massello) - 2015-10-12 00:38 -0600
                Re: Encrypt existing Time Machine backups? nospam <nospam@nospam.invalid> - 2015-10-12 12:01 -0400
                Re: Encrypt existing Time Machine backups? ANTant@zimage.com (Ant) - 2015-10-11 17:52 -0500
                Re: Encrypt existing Time Machine backups? John Somerset <somerset@nospam.com> - 2015-10-11 19:56 -0400
                Re: Encrypt existing Time Machine backups? Alan Browne <alan.browne@freelunchvideotron.ca> - 2015-10-12 08:58 -0400
                Re: Encrypt existing Time Machine backups? Alan Browne <alan.browne@freelunchvideotron.ca> - 2015-10-12 09:54 -0400
                Re: Encrypt existing Time Machine backups? John Somerset <somerset@nospam.com> - 2015-10-12 16:15 -0400
                Re: Encrypt existing Time Machine backups? Jolly Roger <jollyroger@pobox.com> - 2015-10-12 21:32 +0000
                Re: Encrypt existing Time Machine backups? Alan Browne <alan.browne@freelunchvideotron.ca> - 2015-10-12 17:39 -0400
                Re: Encrypt existing Time Machine backups? Alan Browne <alan.browne@freelunchvideotron.ca> - 2015-10-12 17:38 -0400
                Re: Encrypt existing Time Machine backups? Jolly Roger <jollyroger@pobox.com> - 2015-10-12 22:27 +0000
                Re: Encrypt existing Time Machine backups? Jolly Roger <jollyroger@pobox.com> - 2015-10-12 02:31 +0000
                Re: Encrypt existing Time Machine backups? ANTant@zimage.com (Ant) - 2015-10-13 01:58 -0500
                Re: Encrypt existing Time Machine backups? Jolly Roger <jollyroger@pobox.com> - 2015-10-13 07:09 +0000
                Re: Encrypt existing Time Machine backups? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2015-10-12 03:04 +0000

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