Mysql – Running MySQL Backups to network location


We have a MySQL server with several databases for development work and we want to back up some of the DBs to a NAS device.
These have been backed up previously but the backups have not worked for some time I have found.
There is a scheduled task in the Windows scheduler to run a batch script, this script should run the backup for the specified databases and save them to the NAS. When I run the task, I can see the folders and files being created on the NAS but the resulting backup file is always 0 KB so there is clearly something not working correctly.
I've queried the sizes of the DBs on the server and have seen that the DBs I'm trying to back up are not 0 KB.
I'm thinking it must be something in the script which is not working correctly so would appreciate some assistance.

del \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day1 /Y
rmdir \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day1 /S /Q
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day2 Day1
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day3 Day2
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day4 Day3
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day5 Day4
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day6 Day5
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day7 Day6
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day8 Day7
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day9 Day8
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day10 Day9
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day11 Day10
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day12 Day11
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day13 Day12
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day14 Day13
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day15 Day14
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day16 Day15
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day17 Day16
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day18 Day17
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day19 Day18
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day20 Day19
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day21 Day20
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day22 Day21
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day23 Day22
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day24 Day23
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day25 Day24
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day26 Day25
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day27 Day26
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day28 Day27
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day29 Day28
ren \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day30 Day29
md \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day30
mysqldump -u[user] -p[password] -databases [db1] [db2] [db3]> \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day30\vmmysqldevw7.sql

rem Send mail to alerts.infrastructure on completion
mailsend -sub "Backup of VMmySQLdevW7 Completed" < InputFile.txt

The email alerts appear not to work either…
The "inputFile.txt" file contains the mail server's IP address, domain name, MySQL server's name and the alerts email address.

Best Answer

The problem was the missing double hyphen in front of the databases switch. The line in question should have read like this:

mysqldump -u[user] -p[password] --databases [db1] [db2] [db3]> \\[NAS_IP]\Backups\MySQL\VMmySQLdevW7\Day30\vmmysqldevw7.sql