Backup Central

Hi All

Thank you so much for rsnapshot!

I have a tip i'd really like to share, I hope you can put it into the FAQ

'By running `du -cs *` from the snapshot_root, you can see the disk usage delta of each snapshot.
The foremost backup, daily.0 or hourly.0, will be shown as full size, with every folder there-after showing it's actual space usage.

i.e
"56367276        daily.0
1040384 daily.1
18328   daily.2
12      daily.3
8       daily.4
8       daily.5"

Cheers
Michael.

Michael Lynch wrote:
Hi All

Thank you so much for rsnapshot!

I have a tip i'd really like to share, I hope you can put it into the FAQ

'By running `du -cs *` from the snapshot_root, you can see the disk usage
delta of each snapshot.
The foremost backup, daily.0 or hourly.0, will be shown as full size, with
every folder there-after showing it's actual space usage.

i.e
"56367276 daily.0
1040384 daily.1
18328 daily.2
12 daily.3
8 daily.4
8 daily.5"

Cheers
Michael.


Thanks Michael.

Very interesting tip indeed. I was not aware about this.

If I delete "daily.3" (and shift daily.4 and daily.5) then I would
obtain exact 12K of disc space. Am I right?

Clemens



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On Mon, Jun 06, 2011 at 05:48:50PM +1000, Michael Lynch wrote:

Hi All
Thank you so much for rsnapshot!
I have a tip i'd really like to share, I hope you can put it into the
FAQ
'By running `du -cs *` from the snapshot_root, you can see the disk
usage delta of each snapshot.
The foremost backup, daily.0 or hourly.0, will be shown as full size,
with every folder there-after showing it's actual space usage.
i.e
"56367276 daily.0
1040384 daily.1
18328 daily.2
12 daily.3
8 daily.4
8 daily.5"
Cheers
Michael.

We already have this in the rsnapshot man page :-

To check the disk space used by rsnapshot, you can call it with the
"du" argument.

For example:

rsnapshot du

This will show you exactly how much disk space is taken up in the
snapshot root. This feature requires the UNIX du command to be
installed on your system, for it to support the "-csh" command line
arguments, and to be in your path. You can also override your path
settings and the flags passed to du using the cmd_du and du_args
parameters.


Should we make some changes to the man page to explain "rsnapshot du" better?

--
___________________________________________________________________________
David Keegel <djk < at > cyber.com.au> Cyber IT Solutions Pty. Ltd.
http://www.cyber.com.au/~djk/ Linux & Unix Systems Administration


------------------------------------------------------------------------------
Simplify data backup and recovery for your virtual environment with vRanger.
Installation's a snap, and flexible recovery options mean your data is safe,
secure and there when you need it. Discover what all the cheering's about.
Get your free trial download today.
http://p.sf.net/sfu/quest-dev2dev2
_______________________________________________
rsnapshot-discuss mailing list
rsnapshot-discuss < at > lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/rsnapshot-discuss

Clemens Feige wrote:
Michael Lynch wrote:
Hi All

Thank you so much for rsnapshot!

I have a tip i'd really like to share, I hope you can put it into the FAQ

'By running `du -cs *` from the snapshot_root, you can see the disk usage
delta of each snapshot.
The foremost backup, daily.0 or hourly.0, will be shown as full size, with
every folder there-after showing it's actual space usage.

i.e
"56367276 daily.0
1040384 daily.1
18328 daily.2
12 daily.3
8 daily.4
8 daily.5"

Cheers
Michael.


Thanks Michael.

Very interesting tip indeed. I was not aware about this.

If I delete "daily.3" (and shift daily.4 and daily.5) then I would
obtain exact 12K of disc space. Am I right?

Clemens


To answer my own question: No, I am not right. I did not consider the
way "du -cs" actually works.

Deleting daily.3 in the above example may free less than 12K of
disc-space, because there may be files which are hard-linked for example
with daily.4. Disc-space of those files would not be freed.

Clemens

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Gmail has lost me completley.
 
David, I missed the rsnapshot du thing!

I would therefore suggest, that it be suggested in the faq, in the same place that the space usage issue is discussed.

Or does it?

My bad



On Tue, Jun 7, 2011 at 6:44 AM, David Keegel <djk < at > cyber.com.au ([email]djk < at > cyber.com.au[/email])> wrote:

On Mon, Jun 06, 2011 at 05:48:50PM +1000, Michael Lynch wrote:

   Hi All
   Thank you so much for rsnapshot!
   I  have a tip i'd really like to share, I hope you can put it into the
   FAQ
   'By  running  `du  -cs *` from the snapshot_root, you can see the disk
   usage delta of each snapshot.
   The  foremost backup, daily.0 or hourly.0, will be shown as full size,
   with every folder there-after showing it's actual space usage.
   i.e
   "56367276        daily.0
   1040384 daily.1
   18328   daily.2
   12      daily.3
   8       daily.4
   8       daily.5"
   Cheers
   Michael.



We already have this in the rsnapshot man page :-

          To check the disk space used by rsnapshot, you can call it with the
          "du" argument.

          For example:

              rsnapshot du

          This will show you exactly how much disk space is taken up in the
          snapshot root. This feature requires the UNIX du command to be
          installed on your system, for it to support the "-csh" command line
          arguments, and to be in your path. You can also override your path
          settings and the flags passed to du using the cmd_du and du_args
          parameters.


Should we make some changes to the man page to explain "rsnapshot du" better?

--
___________________________________________________________________________
 David Keegel <djk < at > cyber.com.au ([email]djk < at > cyber.com.au[/email])>        Cyber IT Solutions Pty. Ltd.
  http://www.cyber.com.au/~djk/     Linux & Unix Systems Administration