Backup fails with "Invalid argument Asynchronous request operation has failed. Failed to open storage for read/write access"

To prevent this issue, ensure that the user account used to install the Veeam Data Mover service is able to read the logical block size of each device (/sys/dev/block/{id}/queue/logical_block_size).

Check Permissions

On the Linux repository, check the current permissions using the following command:

[backupsvc@rhel9 ~]$ ls -lah /sys/dev/block/*/queue/logical_block_size
-r--r--r--. 1 root root 4.0K May 29 16:37 /sys/dev/block/11:0/queue/logical_block_size
-r--r--r--. 1 root root 4.0K May 29 16:38 /sys/dev/block/253:0/queue/logical_block_size
-r--r--r--. 1 root root 4.0K May 29 16:38 /sys/dev/block/253:1/queue/logical_block_size
-r--r--r--. 1 root root 4.0K May 29 16:38 /sys/dev/block/8:0/queue/logical_block_size

In this example, the permissions for all block devices are as required.

Set Permissions

If any entry did not have -r--r--r--r (444) permissions, update and run the following command to assign it those permissions.