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backup to another linux mount volumn

DBA100DBA100 Current User Role Patron
hi,

I am not a linux guy and when I do df -h I see this:

Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1              59G  9.8G   47G  18% /
tmpfs                 3.9G     0  3.9G   0% /dev/shm
/dev/mapper/rhel-mysql
                      197G  159G   29G  85% /mysql

The problem now is , I want to do mysqldump and that dump .sql is so large that my existing volumn, can't store it !

is the default volumn in redhat linux is /dev/sda1 , which is mount on / ?

how can I use /mysql as the backup volumn ?

I read this: https://serverfault.com/questions/804270/how-to-compress-this-mysqldump
or what is the correct command for me to zip the mysqldump file so that I can restore to xtraDB cluster 8.0.19 ?
and what is the correct command to restore the zip files to  xtraDB cluster 8.0.19  ?

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