Which backup method to choose: CentOS, PostgreSQL+Redmine, Dropbox, LVM?

Question

linux

Good day. Please put me on the right path. In stock we have:
ESXi-server, a virtual machine spins inside, it uses LVM, inside which is "/" CentOS and swap; boot is taken out and attached by UUID. I must immediately clarify that everything was done automatically from the GUI installation, because. it was a long time ago, but I'm still a beginner and still don't understand why UUID should be used in server systems, it will only make backup more difficult?
Just in case

fstab:

/dev/mapper/vg_rmsrv-lv_root /                       ext4    defaults        1 1
UUID=982c2ce4-fe80-461f-93e7-3240ef6c91c2 /boot                   ext4    defaults        1 2
/dev/mapper/vg_rmsrv-lv_swap swap                    swap    defaults        0 0
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0

All this trouble together takes only 3GB and grows by 10-15MB per day. There is a /root/dropbox directory, which is constantly synchronized, respectively, with Dropbox.
Total: I have a lot of levels and backup options. What would people with experience advise?

Answer 1

UUID does not make it difficult, it's just a partition ID, you can get the UUID of partitions with the blkid command .
How to encrypt data before synchronizing with "enemy" servers is well written here habrahabr.ru/post/210744