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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
. 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
and iSCSI channels to ensure the reliability, performance and cluster storage of the host data.4, about the cluster, you can see that CDP plays a role in the coordination of disk, database, host. Multiple hosts access a common disk.Second, the Linux dynamic Disk (LVM) can be put together to understand, in the Linux system to create a different disk partition, and then, through pvcreate to create dynamic disks, vgcreate and lvcreate create dynamic partitions, Assign these vg to the user or creat
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
Major server hardware vendors (such as IBM and HP) provide good data protection policies (hardware or software ). redundant Array of Independent Disks is a good data protection method. for SQL Server, a detailed data backup plan can be developed through the maintenance plan.
Data backup policy (full backup, differential backup and transaction log backup)
Data backup is a data recovery service. Before es
Major server hardware vendors (such as IBM and HP) provide good data protection policies (hardware or software ). redundant Array of Independent Disks is a good data protection method. for SQL Server, a detailed data backup plan can be developed through the maintenance plan.
Data backup policy (full backup, differential backup and transaction log backup)
Data backup is a data recovery service. Before es
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
My friend's database system has a problem. The following is his solution process, which is helpful for me to learn RMAN:
The following is a case:
Production Machine OS down, RMAN disaster recovery
When I was learning rman, I suddenly encountered a golden "good opportunity" to learn RMAN. Because it is a production machine, the following operation objective is to restore data in the shortest time, there is n
The document details the process of restoring data to a customer. The cause is that the disaster cannot be recovered due to missuperposition.
The document details the process of restoring data to a customer. The cause is that the disaster cannot be recovered due to missuperposition.
The document details the process of restoring data to a customer. The cause is that the
Environment product: DB2 UDB
Platform: cross-platform
Version: 8.2 (8.1 patch 7)
Problem DB2 UDB High Availability disaster recovery (HADR) is a database replication feature that provides high availability solutions for partial and entire site faults. HADR copies data changes from the source database (called the master database) to the target database (called the backup database) to prevent data loss. This
The database has now become the cornerstone of the enterprise, so it is necessary to ensure the high availability of the database. At the same time, it is also necessary to prevent unexpected incidents from causing problems in the entire data center (such as addresses and floods ). Therefore, data center high availability and disaster recovery must be considered at the same time.
Using the database mirrori
Long time no write things, a few days ago encountered a business, because the main domain control in the absence of any protection, the naked run after the infection virus, directly collapsed (without words), and can not be restored. Want to be able to complete the function of disaster recovery, today to share with you the process of recovery.The whole process is not difficult, but everyone in this operatio
cheek; in the blink of an eye, the artial muscle does not stretch motion.
In fact, everyone may encounter eyelid hops in their daily lives. Most people can disappear in the short term. Therefore, when your eyelids are beating, do not treat them immediately. Instead, pay more attention to rest, relax, and maintain a good attitude.
At the same time, pay attention to observe whether the eyelid jump gradually decreases or increases, whether there is a tendency to expand downward or whether there is
can see that the replica server in Server06 started successfully. Find out IE to verify that the IIS service is working correctly. 650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/72/72/wKioL1XkDMSCzKHlAAFUomvHjRE296.jpg "style=" float: none; "title=" 12.png "alt=" Wkiol1xkdmsczkhlaafuomvhjre296.jpg "/>650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/72/75/wKiom1XkCqfyxP0MAAJ3RCRUc9g121.jpg "style=" float: none; "title=" 13.png "alt=" Wkiom1xkcqfyxp0maaj3rcruc9g121.jpg "/>6
The system will be changed during the Windows Vista upgrade process, and the computer is in an unstable state for most of the duration of the process. If the installation is not complete or the upgrade fails, you can use rollback to automatically recover from this event. This course describes how to roll back and make recommendations for disaster recovery if the rollback is unsuccessful.
I. Related compone
Suppose you are a woman, you have a boyfriend, and you and another boy are ambiguous, better than friends, and not lovers. You can always dump your current boyfriend, and the other one will soon be able to fill it up. This is a cold backup. Suppose you're a woman and you're dating two men, and two of them are your boyfriends. And they do not interfere with each other and run independently. This is a hot backup of two machines.If you are a woman, you are not comfortable with your boyfriend's sens
First, alarm! Disaster is Fall ...
Bad things always happen when people least want them to appear. This day, that 4400 of the server, so suddenly died ...
According to colleagues at the scene, the server suddenly slowed down and stopped the network service until all the responses were stopped.
In order to restore the service, they only have to restart the server. After forcing the server to reboot, a blue screen appears, the System reports stop:0x0000
data consistency groups by combining these vv into a data consistency group to achieve: not only is the target-side write order of each VV in the group consistent with the source, the group VV The write order between the sources is exactly the same as the source end. Similarly, for this reason, if you configure a double-live, an application that uses all VV should be within a data consistency group. This allows all VV master paths for an application to not be assigned to two 3par . Similarly,
brought about by natural disasters, hardware faults, and human factors, at any time, IT systems and even services of enterprises may be cracked down, resulting in Operation Break and even threatening the survival of the company. How to cope with the risks brought about by putting eggs in one basket has become the focus of many enterprise users in information construction and IT deployment and operation, disaster
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