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- There Is Not Enough Space on the Disk
There Is Not Enough Space on the Disk
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Challenge
A job or task reports the error:
There is not enough space on the disk
Cause
This error is relayed by Veeam Backup & Replication when the underlying system reports the error while attempting to write a file.
More often than not, this error quite literally means the disk has insufficient free space.
However, if it can be determined that the disk Veeam Backup & Replication was attempting to write to has sufficient free space, the issue may instead be related to a filesystem limitation or a configured disk quota. File system limits, file system quotas, or network share quotas can trigger this error.
- If the error is due to a file size limit, the job will always fail after transferring the same amount of data.
- If the error is due to a quota, subsequent job sessions will typically fail without transferring any data.
For example, a job fails with the following details in the report:
Error: Client error: An existing connection was forcibly closed by the remote host Exception from server: There is not enough space on the disk. Failed to write data to the file [D:\Backup\VM Backup\VM Backup2013-10-05T183834.vbk]. Failed to perform data backup.
In this example, the job always failed each time the .vbk file reached 4 GiB, but the storage device had over 1TB free. It was formatted as FAT32.
Limitations encountered by typical jobs include:
| File System | Maximum File Size |
| FAT32 | 4 GiB |
| Ext3, 1KiB block size | 16 GiB |
| Ext3, 2KiB block size | 256 GiB |
| Ext3, 4KiB+ block size | 2 TiB |
Other file system limitations may be encountered by unusually large backup jobs.
Solution
- Identify what file Veeam Backup & Replication was attempting to create/write when the error occurred.
- Check if that disk has sufficient free space.
- Check if there is a filesystem single file size limitation.
- Check if a disk quota is configured.
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