Standby/Dataguard - how is it, really...

My organization is conservative. We are wondering who is using Standy/Dataguard as a true DR solution at a remote DR vendor. I am interested in 1) type of circuit to DR (T1, T3, bandwidth, etc.), 2)distance from primary to standby (approx. mi./city names), 3) Oracle version and OS/version, 4) how many DBs, 5) how much "peak" archive log are you pushing (MB/GB per hr, 6) what is the best/average/worst latency, 7) general opinions/comments.
Thank you very much for your time.

DELETED
Sorry. Read that as system password the first time. The wifi password needs to be reset in your router, then on your devices. How to do it depends on which router you have.
In the Airport Extreme, use Airport Utility to get into the router. Double click the base station then choose edit. Select the wireless tab. Enter the new password there.

Similar Messages

Multiple Standby Dataguard Configuration

Hi,
Sorry if this has been posted before, but I could not find the answer.
I have a Primary site (PRIM) and one Standby site(STBY1). The standby receives archive log changes from the primary. Also using dataguard to manage the Standby.
I would like to create another standby (STBY2) and use the current standby (STBY1) to send changes to the other standby (STBY2).
I've read the section on Cascade Redo Log Destinations in Section D of the Dataguard doc, but it really doesnt show how this is configured.
I assume that my standby (STBY1) would need a the log_archive_dest_2 set to the service that points to the second standby (STBY2).
My question is.. Do I need to be using Maximum Availibilty and send redo logs vice archive logs? How do I configure dataguard? Is the second standby (STBY2) another site in the dataguard configuration?
Thanks,
Roland

I'm curious, is there a reason that you wouldn't want PRIM to supply the changes to both STBY1 and STBY2? In the configuration you're describing, if there was a failure on STBY1, you couldn't fail over from PRIM to STBY2...
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

How can I REALLY downgrade my iCloud storage? HELP!

How can I REALLY downgrade my iCloud storage? Apple is trying to scam ppl out of $$. They will NOT allow you to downgrade per their instructions. It ALWAYS says the iCloud manager is not available, try later. Here is what my email says:
This is a reminder that on 03/03/2015 you will be charged $10.99 for your 20 GB storage plan using your Visa •••• (deleted). If you do not wish to be charged, you can cancel by downgrading to the free storage plan from your iOS device, Mac or PC.
The iCloud Team
I'm so disappointed that all my products are currently Apple and now I down't trust them as far as I can throw them. There is already a class action suit in Florida for the icon taking up 23% of users' available space, now they are trying to charge me $$ yearly when I do NOT need the space? Shame, Apple.. Steve Jobs must be rolling in his grave about your unethical business practices... This does NOT work:
You can also cancel or downgrade your storage plan at any time. For a full refund, contact iCloud Supportwithin 15 days of an upgrade or within 45 days after a yearly payment. Partial refunds are available where required by law. Learn more about iCloud storage plans or get help using Cloud storage.
No... the "done" button will not light up, and it says the iCloud manager is "not available at this time. Try again later." This is a known problem... fix it.
<Edited By Host>

Thank you Roger! Going into my iTunes at least allowed me to delete my credit card info so they can't charge it. In the meantime, after 2 calls I finally got connected to a Senior Advisor from Apple who was able to manually go into my account and remove the automatic charge to my credit card. After sharing my screen, she was able to see the issue many others are having being unable to downgrade. There is a bug in the system that tells you the manage storage is "unavailable at this time". She followed me through several of these threads and realized it is actually an issue. She took all the relevant information and will submit a bug fix request. She even admitted that goal and apple were having an issue syncing to the correct time zone at that there was no know fix at this time. While frustrating, the honesty was refreshing.
Thank you SO much for you quick response on this! My apologies for my tone; this was my first time using this forum. I went through Apple support and didn't realize that there are no Apple employees on here. I was on the line with someone from customer service that wasn't as helpful at the time and was very frustrated..
Thanks again for your help! To all others having this problem, keep calling Apple tech support until you get a Senior Advisor - they will help!! The advisor even told me to tell people to call in and that they need to manually downgrade on their end until they get this issue resolved.

Logical Standby Dataguard experience. Robust? Reliable?

DBAs,
Need sharing from all of your experience using logical standby Dataguard in 10gR2 or 11gR1. Do you feel that this logical standby technology requires high operational overhead (e.g. lots of problems, bugs, not so robust, error prone, etc). Transaction load is rather high for my environment.
I only use physical standby so far.
Thanks in advance

Hi - first you need to know the purpose of requiring a logical standby.
If it's for active standby - you might consider active dataguard in 11g.
Also you have to go through the doc for the list of limitation/s (regarding db objects) on logical standby - there's quite a few of them.
A well maintained/monitored system will have no additional admin overhead (maybe not initially) than the orhers.
cheers.
Lovell.

How do I *really* turn off all email communication?

I have all my communication options set to NO but I still get emails when someone posts to a topic I started. How do I *really* turn off all email communication?

Have you tried all options described in Frank Caggiano's User Tip:
Stopping emails from ASC
Regards
Léonie

How do a really delete books from iBook store (not just hide them)?

How do a really delete books from iBook store (not just hide them)?

What do you mean? They do show in the Purchased items in iTunes. Click on the three little dots ... to the right of the last icon showing in the top left to get the list of other iTunes categories (like books). Click on Books, and then on Purchased:
Cheers,
GB

9.2.0.6 DataGuard - how to "break" replication, make standby "standalone"

Hi All,
I have an existing 9.2.0.6.0 DataGuard environment, where currently I just have one primary and one physical standby database. I am planning to add in another physical standby database, but then at some point, I want to "break" the dataguard replication to this one, and basically take it out of the DataGuard environment, and have it run as a standalone database. I am not talking about putting it into "open read-only" mode, I want to completely remove it from the DataGuard replication, and have it up and running as a standalone db. Is that even possible? I don't see anything mentioned about this in the official DataGuard documentation.
If anyone has any thoughts on the best way to do this, I'd really appreciate it!!
Thanks,
Brad

Actually, both... here is my potential plan:
1. Put a copy of the production database onto the new hardware, and instantiate it into the DataGuard configuration as a new physical standby database.
2. "Break" the dataguard replication, so that the new database on the new hardware becomes a standalone database, separate from DataGuard. At this point, we can test out some of the application against this database. The testing could last up to a few weeks.
3. Once we are happy with the testing, then we need to re-create this database as a backup from production, and get it back into the DataGuard replication as a standby. When it is time to cutover the production system, then we do a DataGuard Switchover, so that the database on the new hardware becomes the new primary database, replicating out.
Does that sound feasible? I think I can take care of all of those steps, the only one that I don't really know how to do is step 2, where we "break" the dataguard replication, and bring up the database on the new hardware as a fully stand-alone db.
Thanks,
Brad

Oracle 9i database software upgrade issue with standby (Dataguard) database

All,
I have encountered a problem in upgrading the Oracle software on 2 of our databases in-house. The databases in question here are using Dataguard, so one is set to primary and one is set to standby. The version that they are/were starting at is 9.2.0.7.
I was able to install and complete the 9.2.0.8 and 9.2.0.8 OCT CPU patches on the primary database, however when I moved to working on the standby database, I am got an error when attempting to follow step 6 of the post installation tasks:
Enter the following SQL*Plus commands:
SQL> STARTUP MIGRATE
SQL> SPOOL patch.log
SQL> @ORACLE_BASE\ORACLE_HOME\rdbms\admin\catpatch.sql
SQL> SPOOL OFF
(Please note that this is my first experience with working with Dataguard, so my methods in updating might have been a bit off-base.)
If I attempt to startup the standby database in MIGRADE mode, I get the following error (which is expected):
ORA-01666: controlfile is for a standby database
If I try to run the catpatch.sql script, even after mounting the database in standby mode, I receive the additional error:
ORA-01219: database not open: queries allowed on fixed tables/views only
My question here is, how do I get the standby database to allow me to finish the software upgrade process, so that both versions of Oracle match on the primary and standby databases? :)
(I did try some research on Metalink, but only found an article detailing how to upgrade your dataguard database from 9i to 10g, which did not look especially helpful in this case...)
Thank you!
-Sabrina

Depending on the kind of Dataguard you currently have, physical or logical, there are two useful metalinks notes:
Upgrading to 10g with a Physical Standby in Place
Doc ID: Note:278521.1
Upgrading to 10g with a Logical Standby in Place
Doc ID: Note:278108.1
~ Madrid
http://hrivera99.blogspot.com/

TIME MACHINE - How does it really work?

Dear Mac users and Apple;
I am new to Mac. For most of my life I used Windows OS. One of the cool features on my new iMac 24'' is TM. In the past I used to use Norton Ghost for creating back ups and safeguarding my data.
Though there is a lot of info on www.apple.com and in the forums I can not find any satisfactory information about the true way of how Time Machine (TM) works.
Below I describe all my concerns, but in order to put them into perspective here is what I was used to on PC while using Norton Ghost. I would run a one time back up of my whole system drive (C:) and other drive (D:) which had my documents on it and then schedule regular back ups (weekly in my case). These were incremental back ups which only " added" the files which changed in the mean time. Of course, this method also meant that anything done between the back ups was at risk of being lost until next back up took place.
When I stated using TM, I assumed a lot of how it works based on my experience described above. However, I ran across this forum http://discussions.apple.com/thread.jspa?messageID=6096304&#6096304 and got pretty confused as to how it really works. I searched for explanations but all I find is us users guessing. I believe Apple should provide its customers with clear explanation and documentation how TM works.
If you read the long formum thread you will understand what I am talking about. If not here is a rough summary.
A guy backed up his data using TM, then after checking it is there he deleted the originals from the source drive only to find out later that the back ups were deleted from TM as well.
The thread goes on and these are the questions I have as a result - I kindly beg you to answer them for me:
1. TM does 1st back up of the whole Mac, at first - correct? This data stays until TM runs out of space on the back up drive, correct?
2.)TM does hourly back ups which are kept for 24 hrs (one day), then only a daily back up stays - which one out of the 24 is considered the daly back up? Or is it a separate back up?
3.)TM does daily back ups which stay for a month then are deleted?
4.)TM does weekly back up and this back up stays until TM runs out of space on the back up destination drive, correct? If yes, when does it take place?( 7days from the initial back up and then again each 7 days?
5.) If I create a file and then delete it before hourly back up stores it, it is not backed up at all, correct?
6.) If I create a file and then delete it once it was backed up by the hourly back up is it stored for 24 hours (one day) and then deleted?
7.) If I create a file and delete it once it was backed up by the daily backup, it stays for a month in the back ups of TM but then is deleted?
8.) If I create a file and it is backed up by the weekly back up, then is deleted - it resides in the weekly back up until TM runs out of space on the destination back up drive and deletes the original weekly back up, correct?
From this, if my assumptions above are right, it means that only files backed up by the weekly back up are kept until back up destination drive has space left. Then it would mean that it is important for me to know when the weekly back up takes place, so that I know that "now is the time and the files I have on my source drive now will stay in the target back up drive as long as it has space".
Further, it would mean that the hourly and daily back ups are kind of temporary back ups which give me the chance to restore the file within 24 hrs if backed up in the hourly back up, or restore it within one month if backed up by the daily back up. If backed up by the weekly back up, then it can be restored any time as long as the back up drive is not full. Is that correct?
IF I do a forced back up (Ctrl click on TM in the dock and then order it " Back up now") is this a back up which stays until back up external disk is full or is it a temporary back up (like the hourly and/or daily)?
Another issue is as follows: If I delete an application from my hard drive BUT it was backed up in the past by TM - can that application be launched automatically without first asking for my (users) permission from the TM's back up on the eternal hard drive? E.g. I install Adobe reader - it is backed up by TM. Then I uninstall it. Then, I download a PDF document, click it to open - does Adobe reader open from the TM back up? If NOT - great, that is how I expect it to work. If YES, then does it warn me about being opened from TM back up? YES it does warn me - great work apple. NO it does not - why? If the later is the case then if you exchange Adobe reader for spyware or malware or a virus, you have a vulnerability how viruses etc. can be reintroduced to system from TM back ups even after cleaned from the original hard disk. Please let me know how it really works.

1. TM does 1st back up of the whole Mac, at first - correct? This data stays until TM runs out of space on the back up drive, correct?
Respectively right and wrong. Out of all the hourly backups it makes, TM keeps only the first of each day for longer than 24 hours and one (presumably the first) of each week longer than one month. Any data which is not part of one of the retained backups is lost. Clearly this may happen long before the drive runs out of space and TM begins deleting the retained backups (oldest first).
2.)TM does hourly back ups which are kept for 24 hrs (one day), then only a daily back up stays - which one out of the 24 is considered the daly back up? Or is it a separate back up?
TM keeps only the first backup of each day for longer than 24 hours. When you bring up a daily backup in TM's browser, you will see on the big shiny black bar along the bottom not only the date but the precise time of the backup you are looking at.
3.)TM does daily back ups which stay for a month then are deleted?
One per week is retained (presumably the first but Apple isn't saying and I haven't seen that confirmed by anyone yet). The others are deleted.
4.)TM does weekly back up and this back up stays until TM runs out of space on the back up destination drive, correct? If yes, when does it take place?( 7days from the initial back up and then again each 7 days?
Don't know about timing. By analogy with the daily backups I would guess first of the week. But remember this is not a separate backup, it is one of the original hourly backups which survives the progressive culling process.
5.) If I create a file and then delete it before hourly back up stores it, it is not backed up at all, correct?
Correct.
6.) If I create a file and then delete it once it was backed up by the hourly back up is it stored for 24 hours (one day) and then deleted?
It is stored for at least 24 hours. If it was never on the first backup of any day it will not survive longer. Otherwise it will.
7.) If I create a file and delete it once it was backed up by the daily backup, it stays for a month in the back ups of TM but then is deleted?
If it was in the first backup of any day then it will be in the backup with that date so long as that backup is retained (at least 30 days and until the drive is full if that day is retained as the weekly backup).
8.) If I create a file and it is backed up by the weekly back up, then is deleted - it resides in the weekly back up until TM runs out of space on the destination back up drive and deletes the original weekly back up, correct?
If it is in the backup chosen as the weekly backup it will be available until that backup is deleted by TM for lack of space.
From this, if my assumptions above are right, it means that only files backed up by the weekly back up are kept until back up destination drive has space left. Then it would mean that it is important for me to know when the weekly back up takes place, so that I know that "now is the time and the files I have on my source drive now will stay in the target back up drive as long as it has space".
I wouldn't advise thinking like this. If you wish to retain long term a particular file TM is not the answer. You should separately archive it outside TM. As has been pointed out elsewhere, you could just copy it to the drive TM is running on, but outside TM's backup folder (however note that this will reduce the space available for TM's backups).
Further, it would mean that the hourly and daily back ups are kind of temporary back ups which give me the chance to restore the file within 24 hrs if backed up in the hourly back up, or restore it within one month if backed up by the daily back up. If backed up by the weekly back up, then it can be restored any time as long as the back up drive is not full. Is that correct?
Correct.
IF I do a forced back up (Ctrl click on TM in the dock and then order it " Back up now") is this a back up which stays until back up external disk is full or is it a temporary back up (like the hourly and/or daily)?
Good question. I have no reason to think that forced backups are priviledged in any way, but who knows? Anyone got any comment?
I install Adobe reader - it is backed up by TM. Then I uninstall it. Then, I download a PDF document, click it to open - does Adobe reader open from the TM back up?
Nothing in the backups is available to you until you have restored it. Interesting question is: if an application is restored, are any other files its original installer would have placed in the system and are needed to run it restored as well? One would like to think so but maybe that's too hard for TM? I would recommend that any major application that has been disinstalled be reinstalled from the original disks rather than relying on TM. Of course, if you've just accidently trashed an application file you can restore it from TM no problem.
Only after restoring it from TM can you use it.
Hope these comments help and anyone with more info adds their piece. TM is proving more confusing than it looked at first glance!

Standby-dataguard

Hi
people talk about the standby database and the dataguard.what is the actual difference between the standby database and the datagaurd.Does both of them indicate the same or there is any difference between them in their name and in their functionality.
Regards
Aram

When people talk about a standby database they are referring to a "physical" or "logical" replica of the primary database. A physical standby database is one that is an exact match to the primary. Oracle "redo" logs are copied and applied to the standby so they are identical block for block. A logical standby database is not identical structurally. It could have the same data but the databases themselves could be different (different OS, different Oracle versions,etc)
Now when people talk about Data Guard, they are talking about an Oracle product to create, administer, and monitor a physical standby database.
Standby databases are a solution. Data Guard is software to support it, but you don't necessarily have to use Data Guard to have a standby database.
Look here for more details:
http://www.oracle.com/technology/deploy/availability/htdocs/DataGuardOverview.html

Switchover logical standby dataguard

hi
we are using oracle9i on enterprise linux 3 . our primary and logical database are not located remotely but are two different servers.
now i need to know the steps that i need to perform in order to switch my primary database to standby database and vice versa . i tried few things but was unsuccessful.
according to my concept what we need to do is
Make sure no data is arriving and the applied and newest_scn are equal.
change the database role of the respective database .
make changes in initialization parameter file to change the primary dest as standby and vice versa .
and then start logical standby apply .
Is thier something that i am missing i tried few things from net but was not able to understand the logic and was unsuccessful .
THANKS

OEM>Tools>Database Applications>Dataguard Manager.
Select primary>Disable
Select secondary>Enable

How to send really Chinese word, not the string "&# number " to web browser

Each Chinese word on page sending to web browser is translated to a string in form "&#<number>" by default, it's a problem when Chinese word is included in url. How to specify sending really Chinese word, not the string "&#<number>" to web browser?

Thanks that seems to make much more sense, still having some troubles though.
Ok so now the majority of it seems to be working and it seems to be sending the String just fine. And I'm having it send the String to the BufferedWriter "out" and then using the newLine() method to send a carriage return but the BufferedReader on "in" seems to not detect the carriage return.
I have it doing a readLine() so that (as I understand it) it should be blocking, waiting until an end of line character so I assume each call of newLine() should have it pick up something but a quick breakpoint shows that it never stops blocking on readLine().
I assume the connection is fine because the application running as server uses the socket object returned by the accept() method.
Is there something I've perhaps misunderstood about the BufferedReader's readLine() method?
Here's the new version of my netbeans project:
http://rapidshare.com/files/371224512/KerazehDood.rar
Also on a different line of questioning, I'm just wondering about socket convention.
I was thinking it'd be useful in a game similar to what I'm attempting to make to not only send player position information but also client keypress information, I was just wondering, if you're doing something like that would it be frowned upon to use two separate ports? I think it would make the implementation far more legible and easy to structure but wasn't sure if applications usually try to stick to only one port or not.
Thanks.
Edited by: ThePermster on Apr 2, 2010 10:54 AM

How can we really delete all artifacts in workspace 9.3.1.?

Is there a way to really delete all artifacts (all published oce's, bqy's, docs, WA reports, folders, subfolders, etc) from workspace 9.3.1?
I noticed that deleting a folder does not remove the subfolders and docs from workspace but just makes it invisible. They still exist in the database. If you are able to recreate the sqame folder again (and with alcm you can) the artifact which were invisible are back again.
Because of this "bug" but also after multiple ALCM imports our testenvironment seems to have problems whic I like to solve by deleting all content and reimporting them with ALCM from file export from production.
Detlev

Oracle "advises" to use the Interactive reporting JDK. Using the categorydelete program sample.
Well as this is fairly new to me I ask some advise from you experts :-)
I've been reading most parts of the developersguide now.
As far as I see I have to edit/ create a /cf file when I want to run a batch driver program.
I am able to run the program (at least it does not complain obout java or other errors anymore. But the batch_file.cf is not yet ready to do what I like to do.
Any one got a sample to run a recursive deletion of all content?
Hope to read from you.
Detlev

How do I *REALLY* change the date on photos?

I'm having trouble with this, and I'm sure there has to be a fix.
Let's say I took a group of photos last week. But oops, I forgot to set the date and time on my camera. So when I import the photos, iPhoto places them under April 2004 instead of June 2007.
No problem. I select all the photos, do a batch change on the date, and they now "appear" to be taken in June 2007.
But they weren't really changed. If you view the info for the photos, you'll see that they are still marked as April 2004 for the original date.
So basically iPhoto has set-up some type of filter to show the photos in 2007, even though the computer still believes they are from 2004.
This became a big problem when I imported my library to my new Mac. Perhaps I did something incorrectly, but I had quite a few imported photos that reverted back to their Original date, instead of the fake one I had set up in iPhoto. So my Library was a mess and I had to re-organize my collection.
This problem would be avoided if iPhoto really and truly changed the date timestamp on my pictures, as I asked.
I've downloaded several programs that offer photo meta editing. None of them did the job. They just changed the photo "Date Modified" to be June 2007. But if you look at their properties, they still show 2004 as the Original Date.
Mac OS X is a very smart system. Surely there is some way to truly force change the dates on photos. Afterall, they are just data in themselves. I can't imagine there isn't a way.
Can you help? Is there a work-around in iPhoto or OSX, or a separate program I can download?
Thanks!
MacBook Pro Mac OS X (10.4.10) iPhoto 6.0.6
MacBook Pro Mac OS X (10.4.10) iPhoto 6.0.6

Jon:
Dragging the thumbnails to the desktop and exporting are essentially the same process, producing copies of the full sized image file. Exporting gives you other options, however. Once you get the photos out of iPhoto you can run PhotoInfo on them and then import as new files. iPhoto will see those new files with the correct date. If you try running PhotoInfo on files already in iPhoto, you can change the EXIF Capture Date in the file but iPhoto won't recognize the changes.
Do you Twango?
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've written an Automator workflow application (requires Tiger), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.

Time Machine and File Vault - How does it REALLY work?

Good afternoon,
I ran some tests and I can't figure out exactly how Time Machine behaves with Filevault.. here's what I did:
I ran a backup manually. It backed up about 265megabytes. This was right after iTunes downloaded an update for my iPhone. This is weird, because that is stored in Library/iTunes/iPhone Software updates, which is in my FileVault user data.
I ran a second backup right after. It backed up 726Kb. Sounds like not much has changed.
Then, I copied a folder (mp3 album) from my NAS to a folder called Time Machine Test in my home folder.. 91megabytes of files.
I started a backup. Sure enough, it backed up about 91megabytes.
After the backup completed, I mounted the Sparsebundle file, and my files were there. I could copy them back properly.
Can someone explain to me exactly what TM can backup while logged in, and what gets backed up only when I log off?
It seems to me like actual files are being backed up, while the complete encrypted sparsebundle is backed up at logoff only. But if that's the case, why isn't there an option to restore individual files other than by mountaing the TM volume manually?
Thanks

infrid wrote: We shouldn't accept this as a price we pay for using other operating system features. Gepeto is quite right : it's unnacceptable, and Apple should sort it out.
Hmm. I guess it depends on whether you want your Time Machine backups to be encrypted or not.
If you use a whole disk encryption solution like PGP, Time Machine works fine when logged-in but all your data is backed-up as though encryption were not present, because one you have booted, the encryption is invisible to applications including Time Machine.
If you enable FileVault, and remove your Home Directory from the exclusions, TM will back up the files in the same way when you're logged in but they will be unencrypted on the backup drive.
With FileVault enabled and Home Directory excluded, it is not the FILES that are being backed up, but the encrypted VOLUME which is essentially one big file containing all the individual files in your Home Directory. It's similar to a TrueCrypt encrypted volume in this sense. It needs to be backed up unmounted which is why it only happens when you log off.
The only thing Apple could do would be to create an encrypted volume for the TM backup and synchronize that with your FileVault volume. Not quote the same thing as Time Machine though.
Message was edited by: Gledders

Standby/Dataguard - how is it, really...

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