Maximum Availability to Maximum Performance.

steps to change from Maximum Availability to Maximum Performance.
SQL> select protection_mode from v$database;
PROTECTION_MODE
MAXIMUM AVAILABILITY
we need to come down to maximum performance mode due to some performance issues..any suggestions for the steps?

Hi Raman,
Perform below steps:
1) shutdown immediate
2) Startup mount
3)SQL> ALTER DATABASE SET STANDBY DATABASE TO MAXIMIMUM PERFORMANCE;
4)SQL> ALTER DATABASE OPEN;
Note: Issue all these commands on primary server
Hope this should work
Regards,
X A H E E R

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Oracle databaguard maximum maximum availability mode

Hi All,
My database is in maximum availability mode at 9.2.0.8:
SQL> select protection_mode from v$database;
PROTECTION_MODE
MAXIMUM AVAILABILITY
SQL> show parameter log_archive_dest_2
NAME TYPE VALUE
log_archive_dest_2 string SERVICE=XXX.world LGWR SYNC
AFFIRM,
SQL>
Oracle Documentation says:
Maximum availability mode provides the highest level of data protection that is possible without affecting the availability of the primary database. This protection mode is very similar to maximum protection where a transaction will not commit until the redo data needed to recover that transaction is written to both the local (online) redo log and to at least one remote standby redo log. Unlike maximum protection mode; however, the primary database will not shut down if a fault prevents it from writing its redo data to a remote standby redo log. Instead, the primary database will operate in maximum performance mode until the fault is corrected and all log gaps have been resolved. After all log gaps have been resolved, the primary database automatically resumes operating in maximum availability mode.
and it also says.....
The NET_TIMEOUT attribute of the LOG_ARCHIVE_DEST_n parameter specifies the number of seconds the log writer process on the primary system waits for status from the network server process before terminating the network connection. The NONET_TIMEOUT attribute reverses or undoes the timeout value that you previously specified with the NET_TIMEOUT attribute.
If you do not specify the NET_TIMEOUT attribute (or if you specify the NONET_TIMEOUT attribute, the primary database can potentially stall. To avoid this situation, specify a small, nonzero value for the NET_TIMEOUT attribute so the primary database can continue operation after the user-specified timeout interval expires when waiting for status from the network server.
If the log writer process detects a network disconnection, even one that was terminated due to a network timeout, the log writer process automatically tries to reconnect to the standby database. The log writer process does this to resolve network brownouts and false network terminations. In most cases, except when the network is physically broken, the log writer process is able to automatically reconnect to the network.
The log writer process continually attempts to reconnect to the standby database for a period of time that depends on the data protection mode currently set for the primary database. Use the following time estimates as a guideline for how long the log writer process will try to reconnect to the standby database:
In maximum protection mode, the log writer process tries to reconnect for approximately 5 minutes.
In maximum availability mode, the log writer process tries to reconnect for approximately 2 minutes.
In maximum performance mode, the log writer process tries to reconnect for approximately 30 seconds.
question is:
1>Does that mean if primary database is in maximum availability mode and if there is network issue and it cannot communicate with standby database, it will freeze or stall for 2 minutes and then operate in maximum performance mode.
That freeze for 2 minutes in production is pain :(
2>Does it also mean,
In maximum performance mode primary database will freeze fro 30 seconds and then move on.
3> To convert from maximum availability to maximum performance do I need to bounce the primary database at 9.2.0.8

I guess I haven't asked the question correctly,
I have asked 2 different question:
1> do you need to mount your database to downgrade the protection mode, I needed confirmation for that at 9.2.0.8
below is link which shows how to downgrade mode:
http://www.idevelopment.info/data/Oracle/DBA_tips/Data_Guard_9i/DG_70.shtml
2> question is all together seperate,
staying in maximum availability mode what happens if you use 'LGWR ASYNC' or 'ARCH' for log shipping.
Why I am asking this question is because, oracle recommends to use 'LGWR SYNC AFFiRM' for maximum availability mode.
I have tried before 'LGWR ASYNC' or 'ARCH' in maximum availability mode and it worked.
Has any one tried 'LGWR ASYNC' or 'ARCH' in maximum protection mode. does db freezes or stalls.
3> When database stalls for 2 miuntes when it cannot connect to dataguard in maximum availability mode, I cannot see any trace files generated, nothing is written in alert log and nothing in listener.log

To convert standby from maximum performance to maximum availability

Hi,
I have configured a standby to primary (version:10.2.0). But it is in maximum protection mode. When a logswitch has been done then it is applied at the standby site.
Now I want to convert to maximum availability such that any updation should be applied at the standby.
Can I get the procedure, how should it be done.
thankyou
satyanag

hi
First add standby logfiles to database then follow these commands..
1. set LGWR,SYNC and AFFIRM attributes in the archive destination on primary database.
2. issue this command on primary in mount stage.
ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE AVAILABILITY
3. Then go to standby ..issue this command...(assuming standby in shutdown mode)
a.startup nomount
b.alter database mount standby database.
c. Alter database recover managed standby database using current logfile;
this last command will not return the cursor..it keeps running....
Now u can check by creating a table on primary ...In case any more detail required then please post the message..
hope it works for u..

Maximum Availability Architecture (MAA)

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Hi
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MAXIMUM availability with delay

Hi guys,
I am running a dataguard instance with cascaded log shipping currently in MAXIMUM AVAILABILITY mode. We have the following setup. Primary and standby in London and the cascaded standby ( ie. standby shipping logs further to another standby in New york ) is in New york. Now, I need to run the new york standby 3 hours behind. So, is it possible to run the one of the databases in the standby configuration to run behind with the DELAY parameter ? Anyone tried it ? I read in the documentation that the LOG_ARCHIVE_DEST cannot have DELAY parameter while running in MAX AVAILABILITY mode.
Can someone shed light on this ?
BTW, I don't want to change the configuration between both database here in London. They will be running with MAX AVAILABILITY. It is only from the standby to another standby in NEW YORK I wan't the LAG
Thanks in advance
Regards
Edited by: USER101 on Oct 12, 2010 5:16 PM

Hi,
You can write to standby redo logs and archive the same and now try to make a 3 hours detail using in applying the shipped archive log standby.
Also please read ARCHIVE_LAG_TARGET parameter.
Kind Regards,
Rakesh Jayappa

Siebel Maximum Availability Architecture Webinar

Oracle invites you to a webinar on Leading Practices of Application Management.
This webinar reviews best practices for the Oracle technology stack and how customers using Oracle's Siebel Customer Relationship Management are leveraging Oracle Real Application Clusters (Oracle RAC); Oracle Clusterware, including disaster recovery strategies; Oracle Enterprise Manager and Maximum Availability Architecture to get peak availability out of their Siebel implementation.
Date & Time: 1/13/2009, 11 a.m. PST / 2 p.m. EST
Presenter: Richard Exley; Consulting Member of Technical Staff, Maximum Availability Architecture
Registration: http://conference.oracle.com/imtapp/app/conf_enrollment.uix?mID=130803325
Passcode: application

Hi Chung,
I will do my best to attend. Will also pass the word along to our customer base.
R
Robert Ponder
Lead Architect and Director
Ponder Pro Serve
cell: 770.490.2767
fax: 770.412.8259
email: [email protected]
web: www.ponderproserve.com

Maximum availability during partition move

I understand that the Assistant will be able to run on 9iR2 as well as 10g.
Will the Assistant then be using dbms_redefinition in order to have maximum availability during partition moves (plus any depending index builds and MV refreshes)?

Martin,
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Lilian

Maximum bit depth-maximum render quality when dynamic linking

Hi
A bit confused by the use of Maximum bit depth and Maximum render quality as used both in Sequence Settings and also as options when rendering in AME.
1 Do you need to explicitly enable these switches in the sequence for best quality or, do you simply need to switch them on in AME when you render in Media Encoder?
2 When dynamic linking to After Effects, when should you use an 8 bit vs 16 or 32 bit working space, and, how does this bit depth interact with the maximum bit depth, maximum render quality in PPro?

Hi jbach2,
I understand your confusion. I'm like that most of the time I'm working. *chuckle* The two settings you mentioned are two completely different parameters affecting (or is it effecting) your video. You do not need to enable them within the sequence itself unless you want to preview video on you program monitor at the highest quality. I personally don't recommend it, as it's a tremendous resource hog, (the program even warns you when you try to click them) and unessecary for improving final output. Again, do not enable these options in your sequence settings if you are only wanting a high quality export. Doing so will greatly reduce your editing performance unless you have a high-end system. ...and even then I don't think its worth it unless you're editing on a huge screen with a Director who wants to see everything at a maximum quality during the edit process.
Keeping it simple...
Resizing your final output video? Use Maximum bit depth.
Starting or working with high bitdepth sources? Use Max Bit Depth.
When/where do I enable these? In the AME only. ^_^
Why?:
Enabling the Max bit and Max render only needs to be done when you are exporting. They both serve different functions.
Max Render aids in the scaling/conversion process only. My understanding is that you never need to enable the Max Render Quality (MRQ) unless you are exporting in a format/pixel ratio different from your original video. For example, when rendering a 1080p timeline out to a 480p file format, you'll want to use MRQ to ensure the best scaling with the least amount of artifacts and aliasing. If you're exporting at the same size you're working with, DON'T enable MRQ. It will just cost you time and CPU. Its only function is to do a high quality resizing of your work.
Maximum bit depth increases the color depth that your video is working with and rendering to. If you're working with video that has low color depth, then I don't believe it will matter. However, if you're working with 32 bit color on your timeline in PPro and/or After Effects, using lots of graphics, high contrast values, or color gradients, you may want to enable this option. It ultimately depends on the color depth of your source material.
The same applies to After Effects.
Create something in AE like a nice color gradient. Now switch the same project between 8,16,32 bit depth, and you will see a noticable difference in how the bit depth effects your colors and the smoothness of the gradient.
Bit depth effects how different plugins/effects change your overall image. Higher depth means more colors to work with (and incidentally, more cpu you need)
Just remember that "DEPTH" determines how many colors you can "fill your bucket with" and "QUALITY" is just that, the quality of your "resize".
http://blogs.adobe.com/VideoRoad/2010/06/understanding_color_processing.html
Check out this adobe blog for more info on color depth ^_^ Hope that helps!
----a lil excerpt from the blog i linked to above---
Now, 8-bit, 10-bit, and 12-bit color are the industry standards for recording color in a device. The vast majority of cameras use 8-bits for color. If your camera doesn’t mention the color bit depth, it’s using 8-bits per channel. Higher-end cameras use 10-bit, and they make a big deal about using “10-bit precision” in their literature. Only a select few cameras use 12-bits, like the digital cinema camera, the RED ONE.
Software like After Effects and Premiere Pro processes color images using color precision of 8-bits, 16-bits, and a special color bit depth called 32-bit floating point. You’ve probably seen these color modes in After Effects, and you’ve seen the new “32″ icons on some of the effects in Premiere Pro CS5.
jbach2 wrote:
Hi
A bit confused by the use of Maximum bit depth and Maximum render quality as used both in Sequence Settings and also as options when rendering in AME.
1 Do you need to explicitly enable these switches in the sequence for best quality or, do you simply need to switch them on in AME when you render in Media Encoder?
2 When dynamic linking to After Effects, when should you use an 8 bit vs 16 or 32 bit working space, and, how does this bit depth interact with the maximum bit depth, maximum render quality in PPro?
Message was edited by: SnJK

On a Mac, in Adobe Photoshop CC 2014, when adding audio to an edit, i get the message "Could not complete your request, because Dynamiclink is not available". When performing the exact same operation in Adobe Photoshop CC, i can add audio in the same way,

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Diff btwn Maximum Outlay and Maximum Payment

Dear Members,
I'm getting cofused with 'Maximum Outlay' and 'Maximum Payment' options in 'Payment Payables Options' window.
Can any one please explain me ,what is the exact difference in both of them by taking some simple examples !!
Thanks in advance !!
Best Regards,
Arun Reddy.

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Can IP SLA determine maximum available bandwidth?

I've searched for this information but all I come up with are articles describing how IP SLA can be used for determining any jitter and latency. By using a network monitoring tool is it possible to determine what the maximum bandwidth of a link is? If so, what data does the tool utilize to determine the link's bandwidth?
I have a gigabit Metro Ethernet link and according to the diagrams from the ISP, it looks like we're only using 100Mbit of it. The routers on each end are 3925E with the HSEC license. I appreciate any help in determining the speed of my link.

I've searched for this information but all I come up with are articles describing how IP SLA can be used for determining any jitter and latency. By using a network monitoring tool is it possible to determine what the maximum bandwidth of a link is? If so, what data does the tool utilize to determine the link's bandwidth?
I have a gigabit Metro Ethernet link and according to the diagrams from the ISP, it looks like we're only using 100Mbit of it. The routers on each end are 3925E with the HSEC license. I appreciate any help in determining the speed of my link.

Applying GI PSU in Maximum Availability Setup

We have 2 node RAC & oracle restart Physical Standby. We want to apply PSU with zero or minimal downtime. Anyone have document to accomplish it.

Hi,
You can use database rolling upgrade as mentioned below link.
http://www.oracle.com/technetwork/database/features/availability/maa-wp-11g-upgrades-made-easy-131972.pdf
Talip Hakan Ozturk
http://taliphakanozturken.wordpress.com/

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but I am a little worried about performance using
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If have understood it right, the RMAN process is single-threaded and can only exist in one instance, while the
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Regards
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Thank you for the reference. It is an interesting concept with the transportable tablespaces. I will have to read this in a little more detail. I am not sure how I get my physical standby back into place. I don't want to have to rebuild it...but maybe the document covers that as well (I didn't see it on the first read).
Thanks for the information.
Regards
Tim

Maximum Availability to Maximum Performance.

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