Re: [CentOS] Tape drive throughput

[Rodrigo Barbosa <rodrigob@xxxxxxxxxxxx>]

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On Fri, Jun 09, 2006 at 06:29:41PM -0500, Steve wrote:
> >Actually, what IS the application he is using ?
> >
> Good question.
> 
> Let's assume that he is using "BackMeUpNow Proprietary Editition(tm)" 
> newly ported from Win32 and running under Winelib. 
> 
> Another strategy, then, might be to do something like:
> 
> # Clear the cache
> dd if=/dev/hda of=/dev/null bs=1M count=2048
> 
> # Run the backup utility
> ./BackMeUpNowProForLinux
> 
> 
> And then monitor it with:
> 
> vmstat 60
> 
> What gets written to tape has to be read from disk first, right?

I'm not sure that would be enough. To get anything with at least 90%
accuracy, he would have to run it for a good time. And considering other
processes might mess up with the disk, it can give him problems.

Unless he is running at runlevel 1, when those occurences will be much
more rare.

[]s

PS: Aren't we getting too much offtopic here ? If you want, we can move
this discussion to the linux-practices list, or even simply offlist,
then come back here with any conclusions (tentative or not).

- -- 
Rodrigo Barbosa
"Quid quid Latine dictum sit, altum viditur"
"Be excellent to each other ..." - Bill & Ted (Wyld Stallyns)

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