Re: Netbackup on a RAC

I agree with Alex--sounds like this is someone doing a little CYA so they can 
say "I told you so" later. 

I've seen networked backup solutions work fine for databases of several 100s of 
Gb without problems. I don't think it has to do with Netbackup and it certainly 
doesn't have to do with RAC. I would advocate his suggestion of creating a 
dedicated network just for backup traffic. Probably IP over FC or at least 
jumbo frames over gigabit. At least that way you don't impact other things by 
doing backups and the backup duration isn't affected (as much) by other things 
like data loads or other network-intensive activities.

Dan

----- Original Message ----
Implement large databases requiring backup on standalone
servers.  Do not use a shared or LPAR environment.
 

An effective backup of a large database requires access to
either a dedicated offnet NIC or a tape attached HBA.
 

Right now, we have a project which is having to reinstall to
another server since they implemented on a shared IO environment.
 

This database has been quoted to me as 30g.  If
RAC/AIX/LPAR is feasible at all at our software level (enquiry has been
submitted to the vendor), that doesnt sound too bad.
 

IF this is QA and there is a larger Prod component planned,
or any other project planned with a large database,  don t implement it
this way.  Use a standalone server.
 

I will save this email so we can all remember that this was
mentioned.
 

  
 

Michael Kline
 

Midlothian,
 VA   23112
 

O: 804.744.1545
 

Fax: 804.763.0114

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