freenas backup

Sections 3rd and 4 describe how to restore and restore a database from a consistent backup, but the disadvantage is that the database must be closed during the operation. Because in the actual environment, users and application systems are always using databases, and the database cannot be closed, how can we back up and restore the opened database, this section and the next section will be discussed.When data is opened, the data file and control file

Example of using RMAN to create a backup set for Oracle11g backup and recovery Oracle 11 GB backup and recovery example of using RMAN to create backup Sets Homepage → Database Technology Background:Read News Oracle 11 GB backup and recovery example of usi

The importance of server data every network administrator knows this, perhaps the probability of server data loss is 1 per thousand, but if it happens, the impact on the entire site will be devastating, real-time server data backup is a network administrator's day-to-day work is an important thing. Server data is diverse and how to back it up. Less than dozens of G, a number of hundreds of g of files, the size of the file is not the same. How to choo

Myth #20: After breaking the log backup chain, a full backup is required to restart the log chain Error A transaction log backup backs up all transaction logs since the last transaction log backup (if there has never been a log backup, starting with the last full

MYSQL database automatic local remote dual-backup MYSQL incremental backup to build a high-security E-commerce website (automatic local/remote dual-backup of website files and databases) architecture diagram We will continue to introduce the e-commerce system architecture related to file backup, database

The backup and recovery mentioned above are all focused on the user database. SQLServer also maintains a group of system-level databases (referred to as "system databases") that are critical to the running of server instances. After each system update, you must back up multiple system databases. The system databases that must be backed up include msdb, master, and mod. The backup and recovery mentioned abov

More official statements FullA backup of a datafile that has des every allocated block in the file being backed up. A full backup of a datafile can be an image copy, in which case every data block is backed up. it can also be stored in a backup set, in which case datafile blocks not in use may be skipped, according to rules in Oracle database

One, MySQL backup type1. Follow the MySQL server status Cold Offline backup, read and write operations are aborted warm can only perform read operations Hot Read and write operations are not affected 2, according to data consistency Consistent Inconsistent 3. Follow the backup data format logical

DB2 offline and online full backup, Incremental backup and recovery operations1. Full offline backup1) first, make sure that no user uses DB2:$ Db2 list applications for db sample2) Stop the database and restart it to disconnect all connections:Db2stop forceDb2start3) execute the BACKUP command: Use TSM as the backup m

Seven Online Rman Database backup 7.1 Online Database backup To perform an online backup operation using Rman, the database must be placed in Archivelog mode. If you are not in archive mode, Rman generates an error when you attempt an online backup. Oracle Archiving and non-archive switching Http://blog.csdn.net/ti

Oracle backup is divided into two types: Logical backup: expdp/impdp is only used to store the exported data. Therefore, only the data saved during Backup can be recovered, Logical backup is suitable for backing up tables with few changes.Disadvantage: long recovery time Advantage: Logical

The article introduced two kinds of database record code, one is our PHP write common database backup class, the other is for Linux friends to provide an automatic timing backup MySQL database code, the need for students can refer to. Save the following PHP code as a backdata.class.php file The code is as follows Copy Code /*** Simple one MySQL

Misunderstanding #20: After the log backup chain is damaged, a complete backup is required to restart the log chain. Error Transaction Log backup backs up all transaction logs since the last transaction log backup (if there is no log backup, it starts from the last full

Logical backup and physical backup have their own advantages and disadvantages. Generally, physical Backup recovery is faster, occupies a large space, and logical backup is slower. Logical backup and physical backup have their own

We can perform full backup for a small number of databases every day, because it does not take much time. However, when the database is very large, we are unlikely to perform a full backup every day, in addition, it is changed to a weekly full backup, and an incremental backup every day is similar to this

Preparations: lftp must be installed in VPS in advance. lftp is powerful. CentOS directly executes: yuminstalllftp and Debian execute: apt-getinstalllftp. You need to create the/home/backup/directory on VPS and the backup directory on FTP. If there are not many VPS databases, you can use Godaddy free space (10 GB space, 300 Preparations: Lftp needs to be installed in VPS in advance. lftp is powerful and can

Usage type: the system load is concentrated in a certain period of time, such as 8 hours during the day, and is usually idle at night. Therefore, data can be backed up at night. It corresponds to full-Database Backup: Http://blog.csdn.net/jacson_bai/article/details/39636915 1. env:IP Address: 10.244.171.180/181Oracle Database Oracle 11.2.0.3OS RHEL 5.5Backup toos: rman, Shell, crontab 2. Backup Plan (increm

Full backupThe most common and simple backup is to directly use the copy command to copy the version library directory to the backup directory. However, this is not a safe method, because if the version library changes during the copy process, the backup results will be inaccurate and the backup function will be lost,

Server:AliyunRequirements:For the WWW directory, perform a backup daily 1 o'clock in the morning to name the folder on today's dateCreate Wwwbak directories and bakwww.sh files in the Alidata folder as follows:Create a new Wwwbak folder and execute the following command:# mkdir Wwwbak# Chmod-r 777 WwwbakTo create a new bakwww.sh file, execute the following command# VI bakwww.shThe contents of the document are as follows:cp-af/alidata/www//alidata/wwwb

Use Xtrabackup to do a full backup. After we have installed Xtrabackup, it gives us a few command-line tools where we back up the command to use is Innobackupex, which is a script that encapsulates several xtrabackup of several command lines internally, Makes the Innobackupex very easy to use first go to the official website to download the RPM package after installation can be used this tool is generally used for local