Re: Split a Replica Job Into Two

That is correct.  The initial scan / setup takes several hours to do.  But 
once the archives are made, the scan completes in a matter of 30 seconds or 
less.  Then whatever needs replicated takes an indeterminate amount of time.
On Thursday, April 18, 2024 at 1:11:29 AM UTC-5 Tõivo Leedjärv wrote:

> I believe Brian was referring to the initial scan after the archive files 
> are removed. The entire contents of the replica must be scanned then. This 
> is always going to take time because it is bound by the storage speed and 
> the entire 190 GB is read in. After the initial scan it will be mostly a 
> metadata scan and should complete in seconds.
>
>
> On Wed, 17 Apr 2024 at 23:09, Eberhard W Lisse <[email protected]> wrote:
>
>> I have been using Unison for more than 20 years, mainly on Macs, but also 
>> a little on Windows and Ubuntu and currently have 65 GB home directory on 3 
>> Desktops and 2 Laptops in an Intel and Silicon mix (all Mac). I use 
>> Homebrew and unison -version shows 2.53.4 (ocaml 4.14.1)
>>
>> Reconstruction of the archives takes around 30 seconds on the same WiFi. 
>> From the outside it takes perhaps a minute or less. I am convinced that 
>> tripling the size will not make this much worse.
>>
>> Making Backup of the Backup sounds silly to me. Rather upgrade on all 
>> sides and see what that does.
>>
>> el
>>
>> --  
>> Sent from my iPhone
>> On Apr 17, 2024 at 20:27 +0200, 'Brian Spraker' via unison-users <
>> [email protected]>, wrote:
>>
>> That is a good idea.. and then potentially script something that makes a 
>> backup once a week.
>>
>> On Wednesday, April 17, 2024 at 12:49:38 PM UTC-5 [email protected] 
>> wrote:
>>
>>> "'Brian Spraker' via unison-users" <[email protected]> writes:
>>> > The storage is up to about 190 GB now. Over the past few months, the
>>> > archive files are getting corrupt. This requires that the archive file 
>>> on
>>> > both systems be deleted - and the whole replica has to start over 
>>> again.
>>> > The first time the archive files are set up, it takes several hours for
>>> > Unison to scan and set up.
>>>
>>> One cheat you can do is that once you get a Unison run to complete
>>> successfully, copy the archive files to a safe place. (Probably the
>>> simplest is to copy ~/.unison whole.) If the archive files get
>>> corrupted, you can replace them with a copy of the saved version.
>>> Unison will still have to do extra checking when it is run next with the
>>> restored archives, but likely a lot less work than it would take to
>>> recreate them completely.
>>>
>>> Dale
>>>
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>

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