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Backup Size

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i got a Backup of my Cloud VM. May you tell me, how and why the Size is so small? I think the backup is not complete.

In other Backups i have similar VMs with the same System (Linux Univention Corporate).


Free ESXi

Second HDD is independent permanently (sdb1)

VM size: 3.65 TB

/dev/sda: 50 GiB

/dev/sdb: 3,6 TiB


In Use:

udev                            10M    0% /dev
tmpfs                          792M 2% /run
/dev/mapper/vg_ucs-root  44G 28% /
tmpfs                          2,0G 1% /dev/shm
tmpfs                          5,0M 0% /run/lock
tmpfs                          2,0G  0% /sys/fs/cgroup
/dev/sda1                  472M 37% /boot
/dev/sdb1                  2,7T 59%
overlay                        44G  28%
shm                             64M  0%
overlay                        44G   28%
shm                             64M    0%

The Systemsize is 50 GB, Clouddatasize are 2.7tb in use.

In Nakivo Backup the Last Run show me "data & speed" 48,9 gb.



1 VM (Cloud)

Schedule monthly

Tracking CBT

Full backup Mode: Active full

No Error.


Best Regards



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It is possible to check the backup consistency in a few ways:
1. Run "Verify all backups" maintenance ( https://helpcenter.nakivo.com/display/NH/Running+Block-Level+Backup+Verification?src=contextnavpagetreemode )
2. Run Flash boot action for affected VM ( https://helpcenter.nakivo.com/display/NH/Performing+Flash+VM+Boot+Recovery?src=contextnavpagetreemode ) and check by yourself if necessary files are present 
3. Run File level recovery action ( https://helpcenter.nakivo.com/display/NH/File+Recovery?src=contextnavpagetreemode ) and check by yourself if necessary files are present

For deeper investigation of this issue by our Support team, it would be better if you generate and send a support bundle ( https://helpcenter.nakivo.com/display/NH/Support+Bundles ) with the name of VM, that they need to check. Also provide any additional information considered to be important for this case.

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1. ran correctly

2. boot run in errors, second hdd is not mounted, fdisk dont show me second hdd. in vm settings is no second hdd, only first hdd.

3. no second HDD by recovery.


I sent Support request.

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