This may not be the case, but the same thing happened to me and it was
a network card misconfiguration. The card was on autonegotiate and the
switch port it was on was set at 100 Full duplex. The backup process would
give less than 100Kb/s. When I configured the switch port to autoneg the
speed bumped immediatelly to several megs/sec. 

Cheers,
Athanasios

On Tue, Jul 19, 2005 at 12:36:12PM -0400, Randy Doering wrote:

> Greetings, I'm in the midst of trying to get a full backup of a file system
> that is alittle of 4 TB and contains more than 132 Million files.
> 
> When I started this yesterday, I noticed it was backing up at around 20-22
> MB/s, and I started to calculate how many hours this would take after it
> had filled the first tape.
> 
> Well, today it is backing up at 150-190 KB/s and the System CPU is pegged.
> At this rate, we looking at at least a month to get this backup finished.
> We have concluded that the system is trying to keep the index information
> and that is the reason for the slow down.
> 
> I have noticed a button in the Group that is called: "No Index Save". So,
> what does this button actually mean?
> 
> We are in the middle of moving the file systems from an HP-EVA based file
> system to an EMC Centerra, and was planning on restoring to the EMC
> Centerra.
> 
> So, will using the "No Index Save" speed things along and more importantly
> will I be able to restore?
> 
> Thanks,
> Randy
> 
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