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?
> 

Leaving aside any other potential solutions I will answer your question
directly. The "No Index Save" attribute of your group is NOT what you
are looking for. All this means is that at the and of the client save it
will not save your client file index to tape. However, there is an
option in the pool that will prevent the index being written to disk at
all. This may make a small improvement to the backup performance but
will of course reduce the ease of your restores.

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