== Creating a Backup == To create a backup of a current working virtual machine (e.g. ecc-a-17), the machine must first be brought down: ```lang=bash $ sudo systemctl stop hmux@ecc-a-17 ``` The logical volume should then be written to a file for ease of transport: ```lang=bash $ sudo dd if=/dev/mapper/vg1-ecc--a--17 of=/backups/ecc-a-17.dd bs=1M status=progress ``` This can also be done over the network using netcat: ```lang=bash $ sudo dd if=/dev/mapper/vg1-ecc--a--17 bs=1M | nc hostname.cse.unr.edu 7000 # on the host sending the backup $ sudo nc -l 7000 | sudo dd of=/pool0/backups/ecc-a-17.dd bs=1M # on the client saving the backup ``` == Restoring from a Backup == The process for restoring a backup is more or less the same as creating one but with the arguments just flipped around: ```lang=bash $ sudo dd if=/backups/ecc-a-17.dd of=/dev/mapper/vg1-ecc--a--17 bs=1M status=progress ``` Or, over the network: ```lang=bash $ sudo dd if=/pool0/backups/ecc-a-17.dd bs=1M | nc hostname.cse.unr.edu 7000 # on the server containing the backup $ sudo nc -l 7000 | sudo dd of=/dev/mapper/vg1-ecc--a--17 bs=1M # on the client restoring the backup ``` == Backing up/Restoring Using Multi-cast == TBD

== Creating a Backup == To create a backup of a current working virtual machine (e.g. ecc-a-17), the machine must first be brought down: ```lang=bash $ sudo systemctl stop hmux@ecc-a-17 ``` The logical volume should then be written to a file for ease of transport: ```lang=bash $ sudo dd if=/dev/mapper/vg1-ecc--a--17 of=/backups/ecc-a-17.dd bs=1M status=progress ``` This can also be done over the network using netcat: ```lang=bash $ sudo nc -l 7000 | sudo dd of=/pool0/backups/ecc-a-17.dd bs=1M # on the client saving the backup $ sudo dd if=/dev/mapper/vg1-ecc--a--17 bs=1M | nc hostname.cse.unr.edu 7000 # on the host sending the backup ``` == Restoring from a Backup == The process for restoring a backup is more or less the same as creating one but with the arguments just flipped around: ```lang=bash $ sudo dd if=/backups/ecc-a-17.dd of=/dev/mapper/vg1-ecc--a--17 bs=1M status=progress ``` Or, over the network: ```lang=bash $ sudo nc -l 7000 | sudo dd of=/dev/mapper/vg1-ecc--a--17 bs=1M # on the client restoring the backup $ sudo dd if=/pool0/backups/ecc-a-17.dd bs=1M | nc hostname.cse.unr.edu 7000 # on the server containing the backup ``` == Backing up/Restoring Using Multi-cast == TBD

== Creating a Backup == To create a backup of a current working virtual machine (e.g. ecc-a-17), the machine must first be brought down: ```lang=bash $ sudo systemctl stop hmux@ecc-a-17 ``` The logical volume should then be written to a file for ease of transport: ```lang=bash $ sudo dd if=/dev/mapper/vg1-ecc--a--17 of=/backups/ecc-a-17.dd bs=1M status=progress ``` This can also be done over the network using netcat: ```lang=bash $ sudo dd if=/dev/mapper/vg1-ecc--a--17 bs=1M | nc hostname.cse.unr.edu 7000 # on the host sending the backup $ sudo nc -l 7000 | sudo dd of=/pool0/backups/ecc-a-17.dd bs=1M # on the client saving the backup $ sudo dd if=/dev/mapper/vg1-ecc--a--17 bs=1M | nc hostname.cse.unr.edu 7000 # on the host sending the backup ``` == Restoring from a Backup == The process for restoring a backup is more or less the same as creating one but with the arguments just flipped around: ```lang=bash $ sudo dd if=/backups/ecc-a-17.dd of=/dev/mapper/vg1-ecc--a--17 bs=1M status=progress ``` Or, over the network: ```lang=bash $ sudo dd if=/pool0/backups/ecc-a-17.dd bs=1M | nc hostname.cse.unr.edu 7000 # on the server containing the backup $ sudo nc -l 7000 | sudo dd of=/dev/mapper/vg1-ecc--a--17 bs=1M # on the client restoring the backup $ sudo dd if=/pool0/backups/ecc-a-17.dd bs=1M | nc hostname.cse.unr.edu 7000 # on the server containing the backup ``` == Backing up/Restoring Using Multi-cast == TBD