[ale] dd - how long should it take?

[Jonathan Glass]

Hmmm. How about a ufsdump piped through SSH to a dump file?  I do that
nightly, and the 65GB of data takes less less than 3 hours.  My 2-7GB
incrementals (every other hour) take about 20 minutes.  Of course, I'm
pulling off an E250 w/2x275 and 1GB of RAM, and like 150GB of RAID
5...so that may change the numbers a bit.

Good luck.

Jonathan

On Fri, 2004-03-05 at 14:59, J.M. Taylor wrote:
> Greetings ALErs
> 
> Anybody ever been crazy/desperate enough to dd a 9gb SCSI disk?
> We've had a dd going on a Sun 450 for hours now.  dd as far as I know 
> doesn't offer verbose, so it's just quietly sitting there.  *Something* is 
> happening between the disks b/c the little green lights are flickering on 
> them.  
> 
> This has 4 400Mhz processors (but during dd only one would be used, 
> afaik).  No idea the amount of ram, except that it's over 1Gb.  We used a 
> 1024 block size..the disk we're dd'ing from is giving us some going-bad 
> warnings so we don't want to access it too much for fear of it outright 
> dying.  Any advice on how long this should take would be...calming. :)
> 
> Thanks
> jenn
-- 
Jonathan Glass
Systems Support Specialist II
Institute for Bioengineering & Bioscience
Georgia Institute of Technology
Email: jonathan.glass at ibb.gatech.edu
Office: 404-385-0127
Fax: 404-894-2291