Need to copy a 200GB directory

[mark]

My mistake. I wrote encryption when I meant compression, as I belive rsync
always compresses--but I could be mistaken about that, too!

Mark
On Jun 27, 2017 11:55 AM, "Tom Buskey" <tom at buskey.name> wrote:

> rsync doesn't encrypt if there's no remote, as in this case.
>
> To be pedantic, rsync to remotes uses ssh by default but it can use rsh
> which has no encryption.  Some older versions of SSH allowed you to specify
> the encryption.  I recall using XOR encryption for faster operation where
> security was not needed.
>
> Encryption typically does some compression.  If you compress 2x, you're
> doubling the bits through the pipe in the same time.  If the
> encryption/compression computation at either end is faster than than the
> uncompressed bandwidth, you'll have faster throughput.  That's very typical
> on newer multicore, high GHz CPUs.
>
> On Mon, Jun 26, 2017 at 4:11 PM, mark <prgrmr at gmail.com> wrote:
>
>> Locally, cp is faster because you cannot make rsync not encrypt, but the
>> restart-from-where-it-stopped feature of rsync makes it worth the wait.
>>
>> Mark
>> On Jun 26, 2017 3:18 PM, "Charles Farinella" <
>> cfarinella at appropriatesolutions.com> wrote:
>>
>>> We need to copy a large (200+GB) directory from one filesystem to
>>> another, both locally mounted.
>>>
>>> I'm unsure as to what I should use to do this, cp, rsync, dd?
>>>
>>> Any suggestions appreciated.
>>>
>>> Thanks.
>>>
>>> --charlie
>>>
>>> Charlie Farinella
>>> Systems Administrator
>>> Appropriate Solutions, Inc.
>>> 1-603-924-6079 <(603)%20924-6079>
>>>
>>> _______________________________________________
>>> gnhlug-discuss mailing list
>>> gnhlug-discuss at mail.gnhlug.org
>>> http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
>>>
>>>
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>
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