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Direct SAN Restore for thick disk VDDK error: One of the parameters supplied is invalid

KB ID: 2005
Product: Veeam Backup & Replication | 8.0 | 9.0 | 9.5 | 10 | 11 | 12 | 12.1 | 12.2
Published: 2015-02-10
Last Modified: 2024-04-03
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Challenge

When performing a write operation using Direct-SAN transport mode (e.g., Entire VM RestoreVM Hard Disk Restore, or initial run of a replication job) the task fails with the error:

Unable to execute write operation using advanced transport, failing over to network mode...
ERR |VDDK error: 16000 (One of the parameters supplied is invalid)

(The error code may vary, but the informational message will be the same)

Error as shown in logging:

vdl | [vddk] VixDiskLib: VixDiskLib_Write: Write 2048 sectors to disk at 0 failed. Error 16000 (One of the parameters supplied is invalid) (DiskLib error 4096062: One of the parameters supplied is invalid) at 6901.
cli | ERR |Command 'Write' has failed.
cli | >> |--tr:Failed to write to a virtual disk. Start sector: 0, length: 2048
cli | >> |VDDK error: 16000 (One of the parameters supplied is invalid). Value: 0x0000000000003e80
cli | >> |An exception was thrown from thread [15316].
dsk | Disabling advanced transport modes.
cli | ERR |Send thread (channel) has failed.

Cause

This error occurs when the LUNs presented to the Backup Proxy for DirectSAN access are read-only.

Solution

To confirm that these LUNs are presented in Read-only access, please refer to your SAN configuration interface.

If the disk is presented as Read-only, you must either connect the volume with write access or use a different transport mode (i.e., Virtual Appliance or Network).

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