Disaster logAll DDL (Create, DROP, and alter) and DML (INSERT, UPDATE, DELETE_ statements, but not query statements) are loggedOpen Mysql.ini Find binary LoggingRevision changed toBinary Logging. Log - = "ABC"Restart MySQLFind E:\AppServ\MySQL\dataTwo more files belowabc.000001Abc.indexOpen Mysql.ini, find [client] revision to[Client]#no-beepTo create a new test environment:1. New Test table2. Create a new ID and name two fields3. Inserting data (opti
HP-lefthand underlying structure details and storage disaster recovery
I. Features of HP-lefthand
HP-lefhand is a very good SAN storage that uses the iSCSI protocol to allocate space for clients. It supports RAID 5, raid 6, and raid 10. It also supports volume snapshots and dynamic volume resizing. Common models include p4500, p4300, and p4000. Based on the disadvantages of market share and software-defined
Currently, the following technologies or solutions are available for remote replication and Disaster Tolerance of oracle databases:
1. Storage-layer-based disaster recovery replication Solution
The replication mechanism of this technology is based on the SAN-based storage LAN for replication for each IO, the copied data volume is relatively large; the system can
Tags: disaster recovery, mirage In (MirageSeries 8)MirageData Update and restoration in classic cases We have introduced Mirage The Management Terminal can restore data from the terminal. Download to describe how to use Mirage Disaster recovery. Disaster
Percona-xtrabackup contains two tools: xtrabackup and innobackupex. innobackupex is encapsulated by per.
Percona-xtrabackup contains two tools: xtrabackup and innobackupex. innobackupex is encapsulated by per.
Directory1. Tool Introduction2. Tool Installation3. Backup policies and prepare test data4. Full backup of data5. Incremental Backup Data6. Disaster Recovery7. Summary
1. Tool IntroductionPercona-xtrabackup contains two tools: xtrabackup an
has its own infrastructure master.
The default five kinds of FSMO exist on the first DC of the root domain in the forest, while the relative representation host, PDCE, infrastructure master in the child domain exists on the first DC in the child domain.
After the construction of the previous domain, we will perform a disaster recovery for the primary domain controller.
Step three: The transfer of FSMO r
SQL Server backup and disaster recovery
The data processing becomes more and more important in the modern enterprise operation, more and more crucial, may even become the enterprise development bottleneck. The importance of data protection is self-evident. If an enterprise does not have a good data protection program or strategy, once the important data loss, the consequences will be disastrous, along with
second, disaster recovery simulation
Since persistent data is used for data recovery after a reboot, it is very necessary to perform such a disaster recovery simulation. It is said that if the data is to be persisted and stability is to be ensured, half of the physical memor
Currently, the following technologies or solutions are available for remote replication and Disaster Tolerance of oracle databases:
(1) Disaster recovery replication solution based on the storage layer
The replication mechanism of this technology is based on the SAN-based storage LAN for replication for each IO, the copied data volume is relatively large; the sys
KBMMW provides a good mechanism for balancing load and disaster recovery, supports multiple implementations, and now looks at the simplest, client-controlled disaster recovery and simple load balancing.Now, we deploy Kbmmwserver to different servers, or deploy multiple instances on the same server, so we have a service
restoration process of the Oracle database is divided into two steps. First, all the retries stored in the redo log file are applied to the data file, and then all uncommitted transactions in the Redo are rolled back, in this way, all the data will be restored to the time of the disaster. Database recovery can only be used to redo data files before a fault occurs, restoring them to the time of failure, rat
. Therefore, we should first recover it for a while and make it recover to a consistent state.
[Dg2] alter database recover managed standby database using current logfile disconnect from session parallel 8;
After a while, stop the MRP process:
Alter database recover managed standby database cancel;
Then you can enable the open read only mode.
Alter database open read only;
Alter database recover managed standby database using current logfile disconnect from session parallel 8;
Check whether th
Resources:Redis Persistence http://redis.io/topics/persistenceGoogle Groups https://groups.google.com/forum/?fromgroups=#!forum/redis-db
first, the discussion and understanding of Redis persistence
There are two ways of Redis persistence: RDB and AOF
First, we should be clear about what is the use of persistent data, and the answer is for data recovery after a reboot.Redis is an in-memory database, either an RDB or a aof, that is just a measure of its
Brief introduction
The role of the log is to ensure persistence and data consistency, through the log can achieve data undo and redo, so through the log, SQL Server can not only achieve disaster recovery, but also through the redo of the log to achieve high availability. This article focuses on the role of logging in several high-availability scenarios provided in SQL Server and in
Note:Disaster recovery SeriesOfArticleYesby Robert Davis Written in sqlsoldier,I personally think it is quite good, so according to my own understanding, testing and sorting are not directly translated. If there is any inaccuracy, please correct me.
This article introduces the second article on Database disaster recovery. It mainly discusses the protection me
Tags: SQL Server disaster Recovery database backup data securityTwo methods of SQL Server disaster recoveryIf your MDF file is generated by the current database, it is a fluke that you may be able to recover the database using sp_attach_db or sp_attach_single_file_db, but you will receive a message similar to the following:Device activation error. The physical fi
CurrentlyOracleRemote database replication and Disaster Tolerance mainly involve the following technologies or solutions:Solution:
1. Based onStorageDisaster recovery replication solution at the Layer
The replication mechanism of this technology is based on the San-based storage LAN for replication for each Io, the copied data volume is relatively large; the system can implement synchronous or asynchron
the operating system can be cleared to update it. If you can, the system does not have to be restarted. support for restart manager is added to Visual C ++ 2010, which is about to return to the king. the main applications of the restart manager are as follows: ◆ Software Update in many cases, after the software or operating system is upgraded, a restart is required to take effect. In this case, we can use the restart manager to automatically shut down the software that runs and update it. A
to compare with Mongodb/kt. 2) for VMS is also not recommended to turn on, although the open VM can let Redis save more than memory data, but if the hot and cold data is not very obvious performance will be very poor (my test is random query Key, hot and cold is not obvious). Of course, 200%-400% of memory can be set as VM space for both hot and cold, and it is not recommended to set up 10 times times as much memory as a VM (like my configuration). 3) Servicestack.redis client seems to have a f
System NEWFS, if the structure is the same as before, the file system most important Inode area will be all initialized, before the retention, inode management of all the important attributes of files, so simply from the file system perspective, data recovery is very difficult.
Fortunately, the structure of Oracle data file is very strong, at the same time UFS file system still has certain storage regularity, can through the reorganization of Oracle
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