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Re: Continuous realtime backup on Synology server
Posted by: Alex K.
Date: May 22, 2017 07:11AM

It seems that if you're using innoDB tables (my case) its not possible:


Making Backups by Copying Table Files

For storage engines that represent each table using its own files, tables can be backed up by copying those files. For example, MyISAM tables are stored as files, so it is easy to do a backup by copying files (*.frm, *.MYD, and *.MYI files). To get a consistent backup, stop the server or lock and flush the relevant tables:

You need only a read lock; this enables other clients to continue to query the tables while you are making a copy of the files in the database directory. The flush is needed to ensure that the all active index pages are written to disk before you start the backup. See Section 13.3.5, “LOCK TABLES and UNLOCK TABLES Syntax”, and Section, “FLUSH Syntax”.

You can also create a binary backup simply by copying all table files, as long as the server isn't updating anything. (But note that table file copying methods do not work if your database contains InnoDB tables. Also, even if the server is not actively updating data, InnoDB may still have modified data cached in memory and not flushed to disk.)

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Re: Continuous realtime backup on Synology server
May 22, 2017 07:11AM

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