[rsnapshot-discuss] To link-dest or not

[Gandalf Corvotempesta]

What do you suggest, using link-dest with rsync or the plain old "cp -al"?

I'm seeing "cp -al" taking hours (with high load on backup server) for
some hosts.
The same with rsync link-dest doesn't happens but obviously the rsync
phase is longer.

[c***@ccs.covici.com]

I would never do without syndest and syncfirst, unless you have a very
broke rsync that won't do hardlinks.

Post by Gandalf Corvotempesta
What do you suggest, using link-dest with rsync or the plain old "cp -al"?
I'm seeing "cp -al" taking hours (with high load on backup server) for
some hosts.
The same with rsync link-dest doesn't happens but obviously the rsync
phase is longer.
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[Gandalf Corvotempesta]

Post by c***@ccs.covici.com
I would never do without syndest and syncfirst, unless you have a very
broke rsync that won't do hardlinks.

So are you suggesting to use the "link-dest" and skip the "cp -al" ?

[c***@ccs.covici.com]

Post by Gandalf Corvotempesta

Post by c***@ccs.covici.com
I would never do without syndest and syncfirst, unless you have a very
broke rsync that won't do hardlinks.

So are you suggesting to use the "link-dest" and skip the "cp -al" ?

Absolutely.

[Gandalf Corvotempesta]

Post by c***@ccs.covici.com
Absolutely.

Can you explain me why ? There are different opinions about this

[c***@ccs.covici.com]

Post by Gandalf Corvotempesta

Post by c***@ccs.covici.com
Absolutely.

Can you explain me why ? There are different opinions about this

I think its probably much faster to use rsync, and it has worked well
for me -- I think I only tried the cp -l briefly.

[Gandalf Corvotempesta]

Post by c***@ccs.covici.com
I think its probably much faster to use rsync, and it has worked well
for me -- I think I only tried the cp -l briefly.

Could you please share the rsnapshot log ? i would like to double check
the exact steps that rsnapshot does with link-dest, mine seems a bit strange.

[Phill Edwards]

Post by c***@ccs.covici.com

Post by Gandalf Corvotempesta

Post by c***@ccs.covici.com
I would never do without syndest and syncfirst, unless you have a very
broke rsync that won't do hardlinks.

So are you suggesting to use the "link-dest" and skip the "cp -al" ?

Absolutely.

I'm not really sure exactly what's being suggested here. Are you
recommending to set link_dest to 1 and sync_first to 1 in rsnapshot.conf?

[c***@ccs.covici.com]

Post by Phill Edwards

Post by c***@ccs.covici.com

Post by Gandalf Corvotempesta

Post by c***@ccs.covici.com
I would never do without syndest and syncfirst, unless you have a very
broke rsync that won't do hardlinks.

So are you suggesting to use the "link-dest" and skip the "cp -al" ?

Absolutely.

I'm not really sure exactly what's being suggested here. Are you
recommending to set link_dest to 1 and sync_first to 1 in rsnapshot.conf?

Yes, that is what I suggest.