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RE: Rman disk performance

From: DENNIS WILLIAMS <DWILLIAMS_at_LIFETOUCH.COM>
Date: Thu, 21 Aug 2003 11:39:39 -0800
Message-ID: <F001.005CC025.20030821113939@fatcity.com>


Brian

   I think that is about the performance we get. Maybe faster than what we get.

   One idea would be to

Dennis Williams
DBA, 80%OCP, 100% DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com <mailto:dwilliams_at_lifetouch.com>

copy some big files using file system commands like "cp" and see what the performance is. My guess is that would be your theoretical upper limit.  

-----Original Message-----

Sent: Thursday, August 21, 2003 12:10 PM To: Multiple recipients of list ORACLE-L

Anybady have values of how many GIGS per HOUR they can Backup and RESTORE the database
using RMAN backup to disk.  

What kind of machine, Memory, storage?  

  1. I am using cheap network attached disk
  2. I am getting about 40 Gigs an hour for Backup
  3. I am getting about 34 Gigs an hour for Restore
  4. 350 Meg of SGA on an Hp9000

Anybody find a good way to improve performance other than increasing channels?  

Cheers,
Thanks for any help  

Brian Spears
Sr. DBA
bspears_at_limitedbrands.com
DC4 (614)577-2677
DC3 (614)415-1398
Limitedbrands
TECHNOLOGY SERVICES
-----Original Message-----

Sent: Thursday, August 21, 2003 12:24 PM To: Multiple recipients of list ORACLE-L

Thanks Julio,  

But that didnt work either..  

Maybe I need to reinstall both Linux and 9i.  

Thanks  

Anjan

-----Original Message-----

QuijadaReina, Julio C
Sent: Wednesday, August 20, 2003 7:54 PM To: Multiple recipients of list ORACLE-L

Anjan,  

Kind of strange there is no lib32 dir under your $ORACLE_HOME. Hummm.... try setting the following on the user's .profile or on your user's shell startup file:  

LD_LIBRARY_PATH = $ORACLE_HOME/lib

LD_LIBRARY_PATH_64 = $ORACLE_HOME/lib  

Maybe oracle is looking for 64 bit library files!  

Julio  

-----Original Message-----

Sent: Wednesday, August 20, 2003 3:05 PM To: Multiple recipients of list ORACLE-L  

Gurus,  

Would appreciate any help that I can get on this...  

I have 9.2.0.1 on redhat 9 ...  

However I cannot seen to start the agent on the server...  

agentctl start just bails out.. no messages...  

This what I see in the dbsnmp.nohup  

/db/app/oracle/product/9.2.0/bin/dbsnmp: error while loading shared libraries: libvppdc.so: cannot open shared object file: No such file or directory
Agent exited at Wed Aug 20 12:33:26 CDT 2003 with return value 127 Agent thrashing. Exiting dbsnmpwd at Wed Aug 20 12:33:26 CDT 2003  

libvppdc.so file exists in the location ORACLE_HOME/lib and it is a 32 bit file..    

Thanks in advance...  

Anjan

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Author: DENNIS WILLIAMS
  INET: DWILLIAMS_at_LIFETOUCH.COM

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Received on Thu Aug 21 2003 - 14:39:39 CDT

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