Exadata and DataGuard

Hi everyone,
I have a doubt with Exadata and DG. Suppose a table with different types of compression. This is, a range partitioned table with the first N partitions compressed with HCC. From N+1 to N+M the table has been partitioned with native 11.2 compression and for the last partitions with no compression. The environment consists of a primary Exadata database and a standby non-Exadata database. In case of switchover/failover, when accessing to compressed data with HCC, I should execute an alter table ... move nocompress. My question is, Could I execute the command only for partitions with HCC compression?. Really only the first partitions are compressed with such criteria and it should not be necessary a lock on the whole table, only for the first partitions.
Best regards.

In a partitioned table, "ALTER TABLE MOVE" can only be done at the partition level, not at the table level. So yes, you only need to rebuild the actual partitions with hybrid columnar compression.
Marc

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Infrastructure suggestion for Oracle RAC and Dataguard

Hello,
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Best regards,
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In terms of cost ? Perhaps.
In terms of performance? NO.
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Yes, you can have all your servers on the same box if you want, just make sure it is not a single point of failure. (Have appropriate safeguards in place in case of power failure, Data center catastrophes, etc). In case of LPARs on the same box, be aware of one server over-utilizing resources which would affect the other LPARs (configurable).
More info on Exadata: http://www.oracle.com/technetwork/server-storage/engineered-systems/exadata/dbmachine-x3-twp-1867467.pdf
If your company has a tight budget you might also look at your options with Database appliance: http://www.oracle.com/technetwork/server-storage/engineered-systems/database-appliance/documentation/oracle-db-appliance…
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Regards

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thanks
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Hi,
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http://download.oracle.com/docs/cd/B10501_01/server.920/a96653/concepts.htm#1027493

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With reference to this thread
is Dataguard and standby dbs is HA
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With RAC As i understand we have multiple instances governing a single database. So multiple node/machines governing a single database server.
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Hi Hashmi,
RAC and DataGuard are indeed different things, as you understood.
Regarding your question, there is no database server, that's the whole thing. There is one database (which resides on external redundant storage like Netapp, EMC, etc.) and there are several servers that are running the instances. Downtime will occur only if the storage crashes. And if you don't trust your storage you can have ASM redundancy, so storage failure will not cause downtime as well.
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However, the high availability is real.
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HTH
Liron Amitzi
Senior DBA consultant
[www.dbsnaps.com]

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Lets see what's missing from your request:
1. Oracle version number?
2. Physical or logical Data Guard?
3. Which Data Guard mode? Synch or Asynch?
4. Which Data Guard protection level?
5. ARCH or LGWR?
6. Which streams mode? Synch or Asynch?
7. Hotlog or Autolog?
8. Streams on the production server or the standby server?
I'm all out of guesses tonight. Please provide enough information for someone to help you.

RMAN and Dataguard (10g)

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Regards,
Timothy.

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Hi everyone,
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Hello Gurus,
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Amit_P wrote:
Hello Gurus,
Could anyone share whats the difference between Exadata and Oracle 12c database? As I searched, it's showing only 12c OEM that supports exadata environment but there is no such 12c database.
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Amit.Oracle 12c has not been released; in other words it is only vapor-ware now.

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Hello
I would like to know does exadata servers come with 11gR2 software pre-installed ?
What about the Grid Control ?
Regards
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Exadata comes with 11gR2.
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www.michaelwilsondba.info

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thanks
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A correction. Logical standby (SQL Apply) doesn't currently natively support spatial data types but sdo_geometry can be supported thru EDS by creating a logging table and two triggers and some manual work. Please check it out from My Oracle Support:
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Hi, there,
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SET SERVEROUTPUT ON
DECLARE
STATUS VARCHAR2(20);
DSTART DATE;
DSTOP DATE;
PVALUE NUMBER;
PNAME VARCHAR2(30);
BEGIN
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Regards,
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hello experts,
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thanks,
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Hi,
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br,
mrak

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We are trying to setup RMAN ( Incremental backup ) for a Dataguard system for Oracle 10G. As I am new to this can anyone help me to start the setup for this?

See "Using RMAN to Back Up and Restore Files" in "Data Guard Concepts and Administration 10g Release 2 (10.2) B14239-05"
http://docs.oracle.com/cd/B19306_01/server.102/b14239/rman.htm
More information
Re: Configuring rman for dataguard environment.
Best Regards
mseberg

Exadata and DataGuard

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