[orca-users] Tape Throughput

[Blair Zajac]

Liston Bias wrote:
> 
> On Sat, 17 Aug 2002, Blair Zajac wrote:
> 
> > Liston Bias wrote:
> > >
> > > Decided to separate tape throughput out in orcallator.se and
> > > orcallator.cfg for ease of understanding our tape backup issues.
> > >
> > > What is the best way to relay how file altered?
> >
> > Liston,
> >
> > Using the command
> >
> >     diff -u old_file new_file > patch_description.txt
> >
> > The first diff below looks like it has the old and new file reversed,
> > which makes it harder to apply.
> >
> > Also, I'll need a log file change for this to place at the top of
> > orcallator.se and in the Orca package.
> >
> > I'm working on getting Orca into Subversion source code management
> > so that people do diffs between the source code and their mods and
> > send them in for inclusion in the package.
> >
> > Once you have some data for this, adding an entry to the
> >
> >    http://www.orcaware.com/orca/docs/orcallator.html
> >
> > would be great.
> 
> I tried the diff -u option and my diff did not recognize it.  Is there a
> special diff I should be using?
> 
> I have copied all the files for the change to:
> 
>    http://www.solarisadmin.com/orca/tapes
> 
> I made the changed to 1.35 cfg/ce files and called them 1.36.  You can,
> ofcourse, change this to what number you want.  For the purposes of diff,
> I was trying to:
> 
> # diff -u orcallator.cfg-1.35.txt orcallator.cfg-1.36.txt > patch_cfg-1.36.txt
> # diff -u orcallator.se-1.35.txt orcallator.se-1.36.txt > patch_se-1.36.txt
> 
> I testing these changes this morning without any problems.  I have
> customized my cfg files here removing a lot of graphs I don't want, so I
> have tested for extented periods of time.
> 
> I also modified the verbage (change disk to st tape drives) on the
> orcallator.html docs page and include some daily graph example for host16.
> 
>   http://www.solarisadmin.com/orca/tapes/orcallator.txt
> 
> I did not bother attempting to duplicate all disk stats for tapes as we
> have no need for them here.  The tape stats that we do have are helpfull
> for identifying issues with our backup servers.  The sample graphs are
> from an E420R attach to an L700 backup unit (8 drives).
> 
> I noticed you have no indication in the .cfg what version it is.  Is there
> a reason you chose not to include this information?

Liston,

Thanks for the great work.  Your changes were committed in rev 172 into
the Orca tree.

I also took the plots you made and added them to the orcallator HTML
documentation page.  See

http://www.orcaware.com/orca/docs/orcallator.html#tape_system_wide_reads_writes_per_second
http://www.orcaware.com/orca/docs/orcallator.html#tape_system_wide_transfer_rate
http://www.orcaware.com/orca/docs/orcallator.html#tape_run_percent

Best,
Blair

-- 
Blair Zajac <blair at orcaware.com>
Plots of your system's performance - http://www.orcaware.com/orca/