“The format did not complete successfully”

A few days ago a colleague of mine was to add a few more disks in a Windows cluster 2003 Enterprise, and create a new Failover Cluster Instances, and one of the disks, an gave an error “The format did not complete successfully.”


The cause off this issue, is validated by the presentation of the discs through the Storage, and presented a new LUN and still give the same error. Attempted to make the format in various ways, but without success.

After some research we came across an article that references the activation of automount

This problem may occur if AutoMount is not turned on on a computer that is running Windows Server 2003, Enterprise Edition. When AutoMount is turned on, and a new hard disk is detected, AutoMount automatically tries to assign a drive letter and mount the disk”

To resolve this problem, follow these steps:

  1. At a command prompt, type mountvol /e to turn on the Automount option for new disks.
  2. Run the New Partition wizard. Format a new volume that does not have a drive leter.

At a command prompt, type mountvol /n to turn off the Automount option.

VERY IMPORTANT Do not leave the Automout option turned on on systems that have complex storage configurations, such as Storage Area Networks (SANs). On systems where drives are exposed to more than one system, the drives could be exposed to unexpected systems. This exposure could cause these systems to lose data access or could cause data corruption.

Source: Microsoft Kb.


How to check allocation unit size

The best way, and the right tool for the job is fsutil. In command line just type;

fsutil fsinfo ntfsinfo <drive>:

Examplae: fsutil fsinfo ntfsinfo c:


C:\>fsutil fsinfo ntfsinfo e:
NTFS Volume Serial Number : 0x0e6640c86640b1ef
Version : 3.1
Number Sectors : 0x0000000018ffe2fb
Total Clusters : 0x000000000031ffc5
Free Clusters : 0x0000000000059043
Total Reserved : 0x0000000000000000
Bytes Per Sector : 512
Bytes Per Cluster : 65536
Bytes Per FileRecord Segment : 1024
Clusters Per FileRecord Segment : 0
Mft Valid Data Length : 0x0000000000280000
Mft Start Lcn : 0x000000000000c000
Mft2 Start Lcn : 0x000000000018ffe2
Mft Zone Start : 0x00000000002e88c0
Mft Zone End : 0x0000000000307ea0


How to Activate remotely Remote Desktop Connections, Windows 2003 and Windows 2008


For some reason, if you forget to activate the Remote desktop, and the Datacenter is far away, you can easily activate this feature, by doing the following steps.

First you login in one computer or server, in the same domain.

Open Registry, and connect to Network Registry.

After you connect to your server, navigate to the following hive, HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server


 Change the REG_DWORD fDenyTSConnections, from 1 to 0.



 Now you can connect to your server, as Administrator.


If for some reason, don´t work after changes, please reboot the server. Open a command prompt and write the following:


 shutdown /r /m \\SERVERNAME /f /t 00

Enjoy 🙂.