Database copy Limitations

Why There is a limitation on 16 Mailbox Database copies ?
What is the Logic behind it . Why can't we have more than 16 ?
I know its by default but want to know why it is like this ?

The maximum allowed is a windows limitation:
http://support.microsoft.com/kb/288778
Windows 2012 allows allows for up to 64 nodes, but the Exchange team decided to stick with 16 max for now.
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Correct.
I would ask why do you want more than 16 copies of a given database, can you provide the underlying business requirement please?
Cheers,
Rhoderick
Microsoft Senior Exchange PFE
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Similar Messages

Database limit warning when creating database copy

Exchange 2010 Standard SP3 RU3.
2 Server mailbox DAG.
I have 5 mailbox databases mounted. I have a copy of each database. WHen I try to create a copy for the 5th mailbox database I get the following warning "Server has reached the maximum database limit of 5.
Looking at my server, There was an old database that was never used in the exchange directory but its not listed in the EMC.
Is it possible that information about an old database still exists in AD? Where can I verify in Adsiedit what exchange databases it sees?

Hi,
One server limited to 5 databases in Exchange 2010 Standard edition.
So, from the description of your screenshot I summary the following information:
The following databases stayed on NASD-MBX1:
Mailbox Database Admin
Mailbox Database Faculty
Mailbox Database Faculty Large
Mailbox Database Faculty Medium
Mailbox Database Faculty Small (Mounted)
The following databases stayed on NASD-MBX2:
Mailbox Database Admin (Mounted)
Mailbox Database Faculty (Mounted)
Mailbox Database Faculty Large (Mounted)
Mailbox Database Faculty Medium (Mounted)
Public Folder Database (It should be here, right?) (Mounted)
Now, if we try to make a copy of “Mailbox Database Faculty Small”,
it will be available as a passive database copy on NASD-MBX2. However, there are five Database mounted on NASD-MBX2 including the Public Folder Database. So it will
get the error “Server has reached the maximum database limit of 5”. We can delete the Public Folder Database to test it.
In ADSIEdit, please refer the following image to find these databases.
Best Regards.

Db links and database copy

Oracle 11.1
The Production database (A) has an application owner schema (C) with a private database link to a secure HR/payroll type Oracle database (B). Since it is a private db link, even users with "select any table" on (A) are unable to query across the link. Only C@A is able to access the secure data in B and that is as it should be.
But when database A is copied over to a QA/UAT environment (D), passwords are changed and many other people have access to schema C.
Question: In this scenario, if someone logs in to C@D, would he be able to use the db link to access the secure data in (B)? i.e.are the db link credentials preserved during the database copy? If so, how would this be prevented?
Thanks

1) Yes, the db link credentials are preserved during the database copy.
2) a) Change the credentials to connect to a userid in the target database with limited permissions, or b) Point the db link to the corresponding development/stage database or c) remove the db link.
:p

Failed to Manually Seed the Mailbox Database Copy on Exchange 2013

Hi,
I tried to manually seed the mailbox database copy via exchange shell by run this command
Update-MailboxDatabaseCopy –Identity “DB_name\Server” -sourceserver "Name Server" –DeleteExistingFiles.
However, i got the error message whereas shown below.
A parameter cannot be found that matches parameter name 'identity'.
    + CategoryInfo          : InvalidArgument: (:) [Update-MailboxDatabaseCopy], ParameterBindingException
    + FullyQualifiedErrorId : NamedParameterNotFound,Update-MailboxDatabaseCopy
    + PSComputerName        : XXXX.abc.XXX
Any ideas?

I hope database is in suspended state and not in failed state.
Make sure EMS is running As Administrator.
http://technet.microsoft.com/en-us/library/dd335201(v=exchg.150).aspx
Cheers,
Gulab Prasad,
Technology Consultant
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Javascript error in BEx after system database copy

Hello,
we made a database copy of our BW 3.1 system on another hardware. After having done everything described in the How-To-Guide "Enable SAP BW Web functionality", we called the BEx via URL. The login screen displays and also the Report menu, but there occur JavaScript errors on the page, that didn't occur in the copy master. E.g.
"SAPBWSSgdo is null or not an object" or
"SAPBWItemCatalog undefined".
These errors prevent the choice menu for BW report value options to be displayed, which is quite annoying. Does anybody know where the error might come from? Are there any components required by BEx which weren't copied with the database copy?
Thanks for your help in advance,
Volker Hofmann

Hi Beat,
thanks you're helping me! The MIME-Repository objects like JS-Files, stylesheets and images can be read. The strange thing is:
The J2EE engine is hosted by a provider. When they're calling the BEx web reports, they're displayed correctly. But when we call them (via proxy!), the error occurs. Even the application management doesn't know where the error comes from, after having checked if the proxy caches old data. The error is still not resolved...
Do you have another idea?
Regards,
Volker

What should be done to include the current controlfile in the database copy

Hi
When trying to create a copy of the database it always fails copying the controlfile
What should be done to include the current controlfile in the database copy with the %b format
RMAN> backup as copy database format 'd:\backup\%b'
2> ;
Starting backup at 13-SEP-10
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
input datafile file number=00001 name=D:\ORACLE\ORADATA\ORCL\SYSTEM01.DBF
output file name=D:\BACKUP\SYSTEM01.DBF tag=TAG20100913T204940 RECID=16 STAMP=729636617
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:45
channel ORA_DISK_1: starting datafile copy
input datafile file number=00003 name=D:\ORACLE\ORADATA\ORCL\UNDOTBS01.DBF
output file name=D:\BACKUP\UNDOTBS01.DBF tag=TAG20100913T204940 RECID=17 STAMP=729636660
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:35
channel ORA_DISK_1: starting datafile copy
input datafile file number=00002 name=D:\ORACLE\ORADATA\ORCL\SYSAUX01.DBF
output file name=D:\BACKUP\SYSAUX01.DBF tag=TAG20100913T204940 RECID=18 STAMP=729636692
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:35
channel ORA_DISK_1: starting datafile copy
*copying current *control file**
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 09/13/2010 20:51:36
ORA-19715: invalid format b for generated name
ORA-27302: failure occurred at: slgpn
continuing other job steps, job failed will not be re-run
channel ORA_DISK_1: starting datafile copy
input datafile file number=00004 name=D:\ORACLE\ORADATA\ORCL\USERS01.DBF
output file name=D:\BACKUP\USERS01.DBF tag=TAG20100913T204940 RECID=19 STAMP=729636697
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:01
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
*including current SPFILE in backup set*
channel ORA_DISK_1: starting piece 1 at 13-SEP-10
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 09/13/2010 20:51:38
ORA-19715: invalid format b for generated name
ORA-27302: failure occurred at: slgpnEdited by: hrishy on Sep 13, 2010 8:26 AM

hrishy wrote:
Allright your trick configure controlfile autobackup on does the trick but i am cluless why it worksWhy clueless? That's a documented and a perfectly normal behavior!
http://download.oracle.com/docs/cd/E11882_01/backup.112/e10642/rcmconfb.htm#BRADV89408
HTH
Aman....

Mailbox Database Copy Status Failed

We have 2 Exchange 2010 servers. We run a DAG. Recently I have noticed that database copy DB2 which is located on Exch-1 is showing "Failed". Database copy DB1 which is located on Exch-2 is showing Healthy. I searched online
for information regarding the issue with the failed database copy. I found information that led me to run these commands.
Suspend-MailboxDatabaseCopy -Identity “Mailbox Database XXXXX\Server Name”
Update-MailboxDatabaseCopy -Identity “Mailbox Database XXXXX\Server Name” -DeleteExistingFiles
It went thru the seeding process and completed but the database copy still shows "Failed". Copy Q Length is 19. I have refreshed the console. What else do I need to do to correct this? I did recently shut down Exch-2 server
for maintenance. thanks

Hi,
It's glade to hear the good news. Thanks for your updating.
Best regards,
Belinda
Belinda Ma
TechNet Community Support

SQL Developer Database Copy truncates DATE columns

Hope someone can help me. I want to copy all object from one schema to another schema in my Database. I have used the "tools - Database Copy" utility and it copies all of the objects and data however when I query the DATE columns in the destination schema the time element has been truncated? Why has this happened?
tab_h contains a column h_date of type DATE
Query
SELECT TO_CHAR(H_DATE, 'MM-DD-YYYY HH24:MI:SS') from tab_h;
returns
02-07-2012 09:54:14
from the source table
yet returns
02-07-2012 00:00:00
from destination schema? This is the case for all DATE columns in the tables.
I noticed this was happening in 3.0.04.34 and I upgraded to 3.1.07.42 and it still happens.
Thank you

Maybe there's a problem getting the OS settings right; try to add this to \sqldeveloper\bin\sqldeveloper.conf:
AddVMOption -Duser.region=USIf that works, you can try others closer to you.
Hope that helps,
K.

What are Pre Database Copy and Post data base copy activity list, Pre Migration and Post Migration activity list from SAP BW 7.0 to SAP BW 7.4 SPS6.

BW on HANA : Pre Database Copy and Post data base copy activity list, Pre Migration and Post Migration activity list from SAP BW 7.0 to SAP BW 7.4 SPS6.
We are trying to copy database from SAP BW7.0 to SAP BW on HANA 7.4 SPS6 so we are in search for list of steps or activities during database copy both pre and post steps.
Along with the above we are in search of Pre and post migration steps ones database is transferred successfully from oracle to HANA on 7.4 SPS6.
Kindly help us in getting the exact course of action as requested.
Thanks and Regards,
Lavina Joshi

Hi Lavina,
try this link for starters: Upgrade and Migration - BW on HANA | SAP HANA
Points to remember are:
Preparation:
     -- Hardware Sizing
     -- Preparation of Data Centres
     -- HANA Hardware preparation
     -- System Landscape Readiness (upgrade software downloads, system readiness checks, etc)
     -- House Keeping activities on BW system (data clean up, etc)
Post Installation:
     -- Sanity checks / Preparation and License checks
     -- JAVA Configurations
     -- Infoprovider conversions
Overall Stages are described below:
# Environmental setup (HANA box)
     -- Initial system checks and Building Activities (system copy, Appln server setups, etc)
# System readiness
               - ZBW_HANA_COCKPIT Tool
               - ZBW_HANA_CHECKLIST Tool
               - ZBW_ABAP_ANALYZER Tool
               - ZBW_TRANSFORM_FINDER Tool
               - SIZING Report
               - System Clean up Activities
               - Impact of 7.4 on source system checks
               - Java Upgrade for portal
# DMO Stages
               - Preparation & Pre Migration checks
               - Execution / Migration
               - Post Migration Activities
# Testing Phase
               - Source system checks/Activities
               - System and Integration Testing
               - End to End Testing
               - Performance testing
               - Reports
               - BO reports / Interfaces
Do let me know if you require any further information.
Regards,
Naren

How to Create a database copy and specify the source database.

Hello,
In my dag environment I would like to create a new database copy and specify the source. My company has database copies in 2 locations. Instead of transferring the data from one location to the other, I would like to specify the source be the copy that is
in the same location.
Thank you,
~Mark

Hi,
We can create a mailbox database, then run EMC and EMS to create a database copy.
More details about Add a Mailbox Database Copy, for your reference:
https://technet.microsoft.com/en-us/library/dd298080(v=exchg.141).aspx
Note: please pay attention to Prerequisites section, for example:
1. The specified Mailbox server must not already host a copy of the specified mailbox database.
2. The server hosting the specified database and the server that will host the database copy must both be in the same database availability group (DAG). The DAG must also have quorum and be healthy.
Thanks
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]
Allen Wang
TechNet Community Support

Cannot add mailbox database copy to DR site - .edb file not getting created

I have a DR site setup that I want copies of 4 of my mailbox databases. 3 of the mailbox databases copied over successfully but the last and largest one which is really not that large 69Gbs keeps failing when i Update the database copy. Seems
to not be creating the .edb file. Is there another way to get the .edb file over to the server, possibly manually copying it then doing and update database copy? I have my backups turned off on all the servers that have the mailbox role on it now
thinking that was causing some issues with the database copy? Any suggestions is appreciated, thanks.
Michael Duhon

Yes manually copy the edb file and paste them in the DR server . Then try to update with for the incremental of database copy. Verify the database is clean shutdown that you are moving to the DR site.
What error message it throws when you performing update the database copy
Exchange Queries

Database copy seeding fails

Hi,
I am trying to add a mailbox database copy from server1 to server2. Every time after seeding the status of the second copy is shown as 'Failed'. In the event log i can see one error message as given below :
The required log file 374413 for BInew\EX02 is missing on the active copy. If you removed the log file, please replace it. If the log file is lost, the database copy will need to be reseeded using Update-MailboxDatabaseCopy.
I have tried reseeding many times both from console and shell.
Update-MailboxDatabaseCopy -Identity "Binew\EX02" -DeleteExistingFiles
Is this the reason for the replication getting failed.I have never deleted any log file from server1.
Please help!

Hello,
You may run the following cmdlets one by one:
Suspend-MailboxDatabaseCopy <databaseName>\<ReplicaServerName>
Update-MailboxDatabaseCopy <databaseName>\<ReplicaServerName> -SourceServer <ActiveServerName> -DeleteExistingFiles:$True
Resume-MailboxDatabaseCopy <databaseName\<ReplicaServerName>
Regards from ExchangeOnline.in|Windows Administrator Area | Skype:[email protected]

Database copy dropped objects in source schema

I was seeking out a quick way to copy an entire schema from one db to another and I was happy when I found the "database copy" feature. I checked the documentation and found that all I needed to do was select the source connection, the target connection, and choose either create, truncate, or drop objects. Well I had some objects in the source db from a previous failed attempt at copying all the objects via script. To remedy that the drop objects option, according to the documentation " Drops any existing table with the same name, and then creates and loads it from the source." Ok, great. The summary shows up with a bunch of entries which I didn't pay too much attention too. Fine, continue...running....progress...so far so good..and the log shows up. I see drops, I see moving data, and I see a whole bunch of errors with no useful information with them. Check the target schema...nothings there, all objects are dropped. Ok, lets have a look at the source and see whats going on. Refresh tables...nothing...refresh...refresh...nothing. The source schema has all its objects GONE too! One lonely type is saved in the source schema, that's it. Am I a total moron and misinterpreting how database copy works? Can anyone shed some light on this? Anyway to recover my source objects? As the source db is not production I am out of luck as there is no recent backup.
Source: 9i
Target: 11g
sql developer v 2.1.1.64.45
-j

OK the problem was that my target connection was inadvertently pointing to the source. It was set properly before but stuff went bad and i switched the connection from TNS to basic, then back to TNS. Apparently when switching back to TNS the wrong entry was selected. Not sure if I chose it or it was selected from a different connection. In any case, very stupid of me.
thanks K.
Edited by: [email protected] on Jun 17, 2010 6:45 AM

Microsoft Exchange Server/Exchange 2010/Mailbox/Database Copy Mounted

Good Morning everyone!!!
I Have SCOM 2007 R2 CU5 Envoirnment and i am monitoring Microsoft Exchange 2010 SP1 Messaging infrastracture,
I have Microsoft Exchange 2010 SP1 Monitoring MP, MP version is 14.2.71.0.
Case:-
When exchange is having issue with DAG, SCOM monitoring rule:- KHI: The database copy is not mounted on the local server. Another database copy may be mounted on a different server.
is generating the alert but alert Description is only " _ef4a8515_1cc0_48a9_aa12_92ba059a6eae_ " and rest of the things are blank
and because of this ticketing team is unable to process these alerts,
Impact:-
Whenever DAG is unavailable, messaging team is not getting notification and because of this. Exchange services are failing down,
Does anyone having this kind of issues on their exchange environment?
I am looking solution for this issue, please let me know if anyone is aware about this.
Regards, Ganesh M <!> Microsoft MPN - Member =========================================================== Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer
your question. This can be beneficial to other community members reading the thread.

Does anyone has updated information regarding Exchange 2010 DAG monitoring fix, <o:p></o:p>
As i see there was exchange MP release on 31st Aug 2012
ID
Name
Targets
_ef4a8515_1cc0_48a9_aa12_92ba059a6eae_
KHI: The database copy is not mounted on the local server. Another database copy may be mounted on a different server.
Root Management Server
_EF51D339_22C5_49b3_8B6B_25002BE31D4A_
KHI: Retry Mailbox Delivery Queue Length - sustained for 90 minutes - Red(>1) - Hub Transport.
Root Management Server
_93558cf0_e063_45b1_b57a_0d4b53e0d615_
KHI: The Microsoft Exchange Information Store service (MSExchangeIS) isn't running.
Root Management Server
My monitoring is affected for these rules which i mentioned below, here alerts
information is shown as rule ID instead of Rule name. and we don’t get alert description
for above rules when the generate alerts.<o:p></o:p>
Response would be appreciated <o:p></o:p>
Regards, Ganesh M <!> Microsoft MPN - Member =========================================================== Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer
your question. This can be beneficial to other community members reading the thread.

Fail to add mailbox database copy

Hello,
When I am trying to add a mailbox database copy in DAG, I receive the following error:
error
The seeding operation failed. Error: An error occurred while performing the seed operation. Error: Failed to notify source server 'mbx1.domain.local' about the local truncation point. Hresult: 0xc8000713. Error: Unable to find the file.
when viewing details of the passiv, error message shows:
The database file wasn't found after log replay. The copy will be set to failed
Please help. Thanks

Hi,
Please use the Get-MailboxDatabaseCopyStatus cmdlet to check the health and status of mailbox database copy.
Please dismount and remount the active mailbox database, remove the failed passive database copy and then add it again to check the result.
Besides, please check the application log to see if there is any related events.
Best regards,
Belinda
Belinda Ma
TechNet Community Support

Database copy Limitations

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