https://login.veeam.com/en/oauth?client_id=nXojRrypJ8&redirect_uri=https%3A%2F%2Fwww.veeam.com%2Fservices%2Fauthentication%2Fredirect_url&response_type=code&scope=profile&state=eyJmaW5hbFJlZGlyZWN0TG9jYXRpb24iOiJodHRwczovL3d3dy52ZWVhbS5jb20va2IyMDQyIiwiaGFzaCI6IjRjNmE1ODk3LWRmM2EtNGUzMS04NDQyLWRhMWQyN2Q5YjU4MCJ9
Backup and Replication jobs fail with the following error: "CDeviceBase: resize is not supported. Failed to download disk"
Challenge
Backup and Replication jobs fail with the following error: "CDeviceBase: resize is not supported. Failed to download disk".
The following conditions must be met:
Important! In certain circumstances, such as when provisioned virtual disk sizes of all disks are the same, or depending on hot add sequence of attaching virtual disks, this VDDK bug can cause the job reporting success while creating an unrecoverable backup, where each backed up virtual disk includes data from the last virtual disk that was hot added.
The following conditions must be met:
- Veeam 8 Update 2 [8.0.0.2021] or later
- Backed up VM is running on ESXi 5.5 or later
- Hot Add transport mode is used
- VM has virtual disks with the same names attached to different SCSI controllers at the same device number, e.g. SCSI(0:0)=myVM.vmdk and SCSI(1:0)=myVM.vmdk
Cause
Bug in VMware VDDK 6.0 results in VDDK attaching all virtual disks matching the description above to the same physical disk device, and then reading the data from the “winning” VMDK (the one that was attached last)
Solution
Workaround:
- Rename virtual disk files so that all disks belonging to the same VM have unique names.
OR
- Change virtual device node on the disks with the same name to different SCSI device numbers, e.g. SCSI(0:0)=myVM.vmdk and SCSI(1:1)=myVM.vmdk
OR
- Use network transport mode.
OR
- Change virtual device node on the disks with the same name to different SCSI device numbers, e.g. SCSI(0:0)=myVM.vmdk and SCSI(1:1)=myVM.vmdk
OR
- Use network transport mode.
More information
Veeam Backup & Replication 8.0 Update 2b (Build version 8.0.0.2030) bypasses this issue.
To obtain Veeam Backup & Replication 8.0 Update 2b, please follow this link
To obtain Veeam Backup & Replication 8.0 Update 2b, please follow this link
| KB ID: | 2042 |
| Product: | Veeam Backup & Replication |
| Version: | 8.0.0.2021 or higher |
| Published: | 2015-06-09 |
| Last Modified: | 2020-08-13 |
| Languages: | ES |
Couldn't find what you were looking for?
Below you can submit an idea for a new knowledge base article.
Report a typo on this page:
Please select a spelling error or a typo on this page with your mouse and press CTRL + Enter to report this mistake to us. Thank you!
Please select a spelling error or a typo on this page with your mouse and press CTRL + Enter to report this mistake to us. Thank you!
Spelling error in text
Knowledge base content request
