Image restore failed 5TB

Server
1

Hello,

im trying to perform an IMAGE backup and restore on a “big” VM, which has two 5TB disks. No errors occur during the backup or restore, but when i then try to see if the VM actually works, it doesnt. 5TB disks appear as RAW.

The OS is Windows Server 2019.

Disks:
OS - small disk
DATA - 5TB
DATA - 5TB

After restoration, OS boots correctly, but data disks appear as RAW. Windows cannot read or mount them, Linux not mount too.

Im trying this on an older version of UrBackup, but all other smaller VM work correctly.
UrBackup Server 2.3.8
Restore ISO 2.3.1

This is what the partition on one data disk looks like after the restore. I dont currently have option to check how it looks on the live VM. But i dont expect that small partition to be there.
Disks were created directly in the Windows OS.

Im also attaching the .mbr file.

===
root@ubuntu-server:~# fdisk -lu /dev/sdb
The backup GPT table is not on the end of the device.
Disk /dev/sdb: 4.95 TiB, 5442582556672 bytes, 10630044056 sectors
Disk model: Virtual disk
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: CC6544EB-B43C-49F9-8C4A-B159886A06F1

Device Start End Sectors Size Type
/dev/sdb1 34 262177 262144 128M Microsoft reserved
/dev/sdb2 264192 10569465855 10569201664 4.9T Microsoft basic data

Image_D_260301-1944.raw.zip (997 Bytes)

2

There is another post in the forum that might be applicable (a long shot maybe): Restore (over 2Tb) gets to 100% then never completes

Is your host server ubuntu with a virtualized windows server 2019 running in a VM? And the windows vm has 3 partitions, an OS disk (physical or a partition?) and 2 5Tb physical drives? Is the 5Tb drive you are trying to restore to in a RAID configuration; virtual or physical? Or a Microsoft storage spaces configuration to expand multiple drives into a 5Tb disk?

When you do the urbackup image backup of the VM, is the urbackup client running INSIDE the vm to perform the image backup? Or is URbackup client running on the host (which I think is unbuntu?) and you are backing up the vm by backing up a large vm disk file?

3

Posted by me… what version of UrBackup server are you running?

4

The VM runs on VMware ESXi.

There are three independent disks:

  1. A small one for the OS (Windows Server 2019 with UrBackup)
  2. A large 5TB disk for data
  3. A large 5TB disk for data

All disks are SCSI “VMware paravirtual SCSI” disks.

UrBackup runs directly inside the VM.

UrBackup uses ZFS, disks are stored on ZFS as .raw files

SW:
UrBackup Server 2.3.8
Restore ISO 2.3.1

5

Server 2.3.8 will not restore above 2Tb disks, need to be version v2.3.35 minimum. Needs to be a VHDX format as VHD will only store 2Tb max. VHDX has issues until they were fixed in server v2.3.35, and then only new backups after that version was updated on the server will restore

6

UrBackup uses the RAW format for ZFS, not VHDX.

7

Hi, sorry I have not used .raw files so don’t know if there is a bug with that storage method or some other reason. Are you able to set up an environment to test a backup & restore using VHD format?