Fernando,
Replies included in your original mail, but in addition:
Parallel server is a separately priced option from Oracle and it is pricey.
Second you may need specific software from you OS vendor to coordinate the file
sharing between the servers, again an additional expense.
Dick Goulet
____________________Reply Separator____________________
Author: "Fernando Papa" <[EMAIL PROTECTED]>
Date: 5/30/2001 2:07 PM
Hi everybody!
I have some questions about parallel server. Now we have only one instance
"stand-alone" (no parallel), but we are thinking to switch to parallel
server because we have a couple of sparc 3500 and nobody are using it, and
we think it's good for increase our processing power.
The problem is I didn't work with parallel server and I have a lot of
questions about it:
1) Is mandatory to use raw devices for control files, redo logs & data
files?
--> Data files yes, redo and control files can be on cooked file system.
2) How we transfer our cooked data files to raw devices data files?
import/export? or exist another better (fast) method?
--> To the best of my knowledge your going to have to rebuild the database from
scratch so imp/exp is your only option.
3) If I start with only one node, performance will be the same of one single
instance (no parallel)?
--> Yes and NO, raw devices run a little faster than cooked files since the OS's
buffer cache is not in the middle.
4) Somebody know how to work with raw devices under solaris? any link? I try
to found someting in metalink but there's no samples...
--> Working with raw devices is very different from cooked file systems. If you
don't have an experienced Unix admin you could be in serious trouble.
5) What about backup? I can't put tablespaces in backup mode and copy with
cp... maybe it's time to use rman?
--> Rman can handle the backups, but a file system level backup is different.
CP does not work anymore, nor does fbackup, or tar. You'll need specialized
software for the purpose.
Thanks in advance!
--
Fernando O. Papa
DBA
El Sitio - Infraestructura
(54-11) 4339-3854
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