[Cialug] Backups with rsync

[Jonathan Bailey]

True. I can do full nightly backups (about 1.2GB each at the moment). 
Right now they're stored on a different drive in the same server. I also 
want to have an off site snapshot (don't need each nights backup - just 
the most current snapshot). My remote machine is on a 1.5mbit (DSL) 
connection. If I rsync /backup/backup-[currentdate]/ to 
/remotemachine/backup/ every night, will that give me a current snapshot?


Jon

Dave J. Hala Jr. wrote:

>I've never been a fan of incremental backups. Ever do a complete restore
>from a daily incremental backup set? If one of the backup sets is bad,
>you can be hosed.
>
>For what a cheap ide drive costs nowadays, you might as well just do a
>full backup every night and save yourself the headache. If you are
>worried about the "reliability" of the cheap ide drives, use two or
>three or four of them with software raid...
>
>Depending on how large your backup files are, you may be able to also
>store them on the CD/RW's or DVD/RW's and rotate the media out weekly,
>taking a copy off-site.
>
>If they are truly "mission" critical backups, the cost of the back-up
>system shouldn't be a factor. (It just needs to be reasonable) It just
>needs to be reliable and able to be restored quickly. 
>
>
>
>:) Dave
>
>
>On Sun, 2005-02-20 at 10:06, Jonathan Bailey wrote:
>  
>
>>I want to do incremental backups since they take less disk space in the 
>>end (full backups every Sunday for example). I'd then like to rsync 
>>those backups to another server. This is what I'm using for incremental 
>>backups now - it's not perfect, but I'm lookign for better.
>>
>> rsync -av --exclude-from=/root/rs.exclude 
>>--compare-dest=/backup/backup-$WEK/ /home/ 
>>/backup/backup-$WEK-$DATESTAMP/ > /backup/backup-$WEK-$DATESTAMP.log
>>
>>
>>
>>Jon
>>
>>
>>
>>Academician Kula wrote:
>>
>>    
>>
>>>On Sat, Feb 19, 2005 at 08:21:08PM -0600, Jonathan Bailey wrote:
>>> 
>>>
>>>      
>>>
>>>>I'm currently using rsync to do a backup every night. I'd like to do 
>>>>incremental backups, just storing the changed files every backup cycle. 
>>>>I'm thinking of a full backup on Sunday, and incremental every other day 
>>>>of the week. I know you can use --link-dest with rsync, but I don't want 
>>>>all the hard links. How can I make it back up only the changed files 
>>>>(and structure)?
>>>>   
>>>>
>>>>        
>>>>
>>>You might use find with the appropriate options to find all files
>>>changed since a certain time, and feed that list to rsync. Newer
>>>versions of rsync have a --files-from flag, which just takes a list
>>>of files to copy.   
>>>
>>>I am curious why you don't want hard links --- I've been using rsync
>>>with hard links to do backups for a while now and it seems to work
>>>well for me. Knowing a bit more about your situation may give us ideas
>>>for you to try.    
>>>
>>>
>>>
>>> 
>>>
>>>      
>>>
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