This article describes how to include and exclude the temporary disk.
Each size of an instance of FAZ-VM has its temporary disk at Azure.
Therefore, temporary disks (typically /dev/sdb) cannot be used and will not appear under exe lvm info in the CLI FortiAnalyzer-VM.
Scope
FortiAnalyzer and Azure.
Solution
When the temporary disk is included in LVM Azure, the log from FortiAnalyzer will not be lost and the device will not be deleted from the instance.
However, when the FortiAnalyzer instance is turned off or shut down, all logs from the archive are deleted and the device from FortiAnalyzer needs to be integrated again.
Therefore, to exclude the temporary disk from LVM, it is necessary to format the disk.
FortiAnalyzer # exe format disk This operation will format hard disk to ext4 filesystem. Do you want to continue? (y/n)y
After formatting the disk, stop the FortiAnalyzer instance, start the FortiAnalyzer, and run again the exe lvm info.
FortiAnalyzer # exe lvm info LVM Status: OK LVM Size: 1043GB File System: ext4 1026GB Disk1 : Used 1023GB Disk2 : Used 10GB Disk3 : Used 10GB Disk4 : Unavailable 0GB
As the processes need to stop/shut the instance, it is better to take a backup before formatting and stop/shut the instance.