complete, you can use the Red box section of the "Failover" to failover, the principal database of the active session to the mirror database: After the build is complete, check the database status of two servers: Test failover (Failover) below: To refresh the database of two servers, the following status can be seen: The SQL Server mirroring feature provides a database mirroring monitor that can
"DBA Common management Tools"
SSMS, BIDS, SQL serverprofiler ...
One, SQL Server common management tools
1. SQL Server Management Studio
Used to access, control, manage, and develop all of the components of SQL
group_id column in the DMV sys.dm_exec_sessions to verify that the incoming session is in the correct workload group. Next I create a nonclustered index in the DataKey in the Factonlinesales table of the CONTORETAILDW database. 1 -- Create A simple non-clustered Index
2 CREATE nonclustered INDEX on factonlinesales (datekey)
3 GO We created the resource pool from the beginning, and now there is no limit in our pool of resources. So SQL
From Click on Open link
Scene:
A recent DB server occasional CPU alarm, my email alarm threshold (Please read yù) value set is 15%, the beginning is not the case, thinking is what the statistical category of inquiries, and then more frequent.
Explore:
I decided to check to see what was going on, and the Order of my troubleshooting was as follows:
1, first turn on cacti monitoring, found that the most r
event is also fired. If the user switches from one database to another.We also recommend adding a eventsequence column for each selection event class, which makes it easier to query the data later. The recommended event and Column Completion Event selection dialog box for monitoring exceptions is shown below.650) this.width=650; "title=" clip_image002 "style=" Border-top:0px;border-right:0px;border-bottom:0px;border-left : 0px; "alt=" clip_image002 "
Tags: SQL Server 2014 log shipping13.4 Fail-Over13.4.1 Fault LocationAs explicitly mentioned in the previous sections, log shipping consists of three basic jobs: backup jobs, copy jobs, and restore jobs. Use the previous festive log transfer monitoring function to locate which job has a problem:If there is a problem with the backup job, check the primary
In Microsoft SQL Server 2008, database administrators (DBA) are the most important roles. DBA's goal is to ensure that the Microsoft SQL Server 2008 system runs properly and efficiently. DBA is also the busiest job. Both Performance adjustment and disaster recovery are inseparable from DBA support.
Generally, as a DBA,
there any way to reduce the size of the database? Some compressed databases.
Here we can compress the data size.
7. Database Backup considerations:
1. You must select the two check boxes below to ensure that the backup is successful.
The best steps for backing up databases (especially when planning maintenance) are generally used
1. Check database integrity
2. Log tail backup (we will talk about it later in the disaster recovery)
3. Backup
It is best that these are sequential sources.
We reco
components:
User tableThese tables contain the data to be full-text indexed.
Full-text collectorThe full-text collector uses the full-text crawl thread. It is responsible for scheduling and driving the population of full-text indexes, and is responsible for monitoring full-text catalogs.
Thesaurus FileThese files contain synonyms for the search term.
Non-indexed Word Table objectThe Stoplist object contains a list of co
After you install Oracle,plsql , turn on monitoring in the server. Computer right-management-services and applications-services-Open the service that begins with Oracle, especially the listener, the most important and specific. (1) Configuring the monitoring locationStart-All Programs-oracle_oradb11g_home1-config and porting tool-Net Manager, as a result, In thi
publication successfully, as shown in 19. Figure 19: Successful creation of the publication Let's create a subscription on an instance of SQL Server 2012, choose New Subscription, 20. Figure 20: Create a new subscription After selecting Next on the Welcome screen, select the publication you just created, as shown in 21. Figure 21: Selecting a Publisher The next step is to select a push subscription s
(specifically to build a few estimates and real pipesEstablishment of the number of instances, such as in my test, \\.\pipe\sql\query only need to establish 1 can be hijacked, and \\.\pipe\lsass will need 4-5 before hijacking. However, \\.\pipe\lsass ACLs can only be hijacked by administrators.If an attacker has reused a pipe of the same name, set up several pipelines that are not freed (consuming instances of normal piping), and then a customer-init
SQL Server database mirroring key Performance countersThere are 5 basic methods of monitoring database mirroring:1. Configure the database Mirroring Monitor, set the alarm threshold value.2. Configure WMI EVENT ALERT to configure the action or alarm after the mirror state is modified.3. Use System Monitor to view key performance counters.4. The deployment job mon
. Download: http://support.microsoft.com/kb/944837 No8:sqlnexusFunction: Collect information first through SQL Server's SQLdiag.exe tool, and then analyze this information with Sqlnexus, which is the integration of some of the previous tools, providing the database manager with considerable support for finding the performance bottleneck and troubleshooting of SQL Se
lock (X) for PK _ DealLock _ 3214EC274222D4EF, but PK _ DealLock _ 3214EC274222D4EF has already given SPID 54 the first session). SPID 55 is waiting.
Here the process is blocked, causing a deadlock.
4. SQL Server checks that the two processes (the first and second sessions) have deadlocks, and adds the processes that consume less resources to the victim list and terminates Kill ). By displaying the Left an
Server CountersThe Access Methods object in SQL Server provides a counter that monitors access to logical data in the database, and the Buffer Manager counter monitors physical access to the database on disk. Access Methods access Mode Access methods monitors the methods used to access data stored in the database to help determine whether you can improve query p
Label:The above article mentions that win's performance Monitor is a necessary tool to monitor database performance, and then I will introduce some common monitoring indicators, in fact, the disk, CPU, memory and other hardware operating indicators and the database itself like the lock Ah, the number of user connections Ah, There are parameter indicators that need attention according to their own business decisions.1.
Tags: style blog http color os using AR strong dataOriginal: SQL Server 2005 database scheduled replication for dual standby (primarily SharePoint content databases)SceneThe company's most recent database server for SharePoint is always in trouble, and is not working properly once a problem occurs. The main thing is that we have to work overtime to restore the pr
column
According to the formula, when the data volume in the table increases gradually, the density will decrease.
For queries that cannot be selected based on the sampling step, the query analyzer uses density to estimate the number of rows. The formula is: Estimated number of rows = number of rows in the table * density.
Then, based on this formula, if I make a query, the estimated number of rows will be 4.
Figure 4. Estimated number of rows
Let's verify this conclusion, as shown in Figure 5
it finds the lost security package or service package. You can find related information on TechNet.Delete SA and old passwordA common security error is that you do not change the system management password. You will easily ignore the installation files and remaining configuration information, without well-protected authentication information and other sensitive data, which may be attacked. You must delete the old installation files. Similarly, use the KILLPWD tool to find out the old passwords
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