[Dirvish] Saving default.conf files
keithl at kl-ic.com
Thu Jun 9 07:37:27 PDT 2005
On Thu, Jun 09, 2005 at 11:42:32AM +0100, Dave Howorth wrote:
> I just discovered the need for a small utility to backup all my
> 'default.conf' files because otherwise that information is only stored
> in one place and could go missing! ...
Another way to do this is tar. I have all my vaults on one backup
disk (which I do a 3 way rotate on) so this is easy for me, but some
elaboration for other setups is easily possible.
My backup disk structure is like so:
Where "/backup" is the mount point. Every night, as part of the
bash script I use to wrap dirvish-runall, I do:
tar -cfp /etc/dirvish/disks/$DISK /backup/dirvish/*/*/dirvish
This saves all the default.conf (and branch) metadata on the drive.
Multiple banks on different disks could be easily handled, because
tar can take multiple arguments.
Since I rotate disks, and sometimes add a new disk to the rotation,
I use tar to very quickly set up new disks. Generally, all I have
to do is format the new drive, do a tar -xfp , chmod some of the
global permissions, then write a label file (from which I extract
the $DISK parameter above). This takes about 3 minutes, of which
2 minutes are used remembering what to do.
I do like the idea of handling this in Perl, though, because overall
I would like to eliminate dependencies on bash. Perhaps my wrapper
ought to be written in Perl, and capable of locating utilities like tar.
Keith Lofstrom keithl at keithl.com Voice (503)-520-1993
KLIC --- Keith Lofstrom Integrated Circuits --- "Your Ideas in Silicon"
Design Contracting in Bipolar and CMOS - Analog, Digital, and Scan ICs
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