EMC-AX4 Model: AX4-5i with Windows 2012 iSCSI disk error device is not ready

Question

Hi, We have 1 EMC-AX4  Model AX4-5i used as storage with  2 nodes ESX4.1 in a cluster. The storage has 4 iSCSI ports. We are moving from VMware to Hyper-V (Windows 2012). on the storage, I have recreated 1 virtual disk with  750GB used before  by ESX. The rest of the virtual disks are still assigned to 1 ESX . There is no more clsutter as the second ESX  has Hypervisor 2012 (Hyper-V core). The registration of the Windows server and the assignemnt of the Virtual disk on EMC-AX4 work fine and the status of connection is OK. The same also on Windows 2012 with iSCSI and MPIO.No error. My problem: The disk is listed in Windows Disk Management as 'Unknown. Not initialized'. Trying to initiliazed the disk brings this error: 'Virtual Disk Manager.  The device is not ready'. When I click OK, the next errro is 'Virtual Disk Manager.  The media is write protected'. The error are the same with GUI or Diskpart. Thanks

jimmsk · Accepted Answer

The problem is resolved.

- I have deleted all vNICs and their settings and recreated them again.

- Assigned VLAN ID.

- Reconfigure iSCSI/MPIO

- Reconnected to Clarian storage (I did not unassign Server, nor the Virtual Disk)

- Back to Windows Disk Management !!!

- The disk was GPT protected.

- Moved to CMD with diskpart

- CMD diskpart clean successful

The disk is there online.

Created partition and formatted the disks.

Thank you for your time.

Jimm

Vipin VK · Answer

Consider moving this discussion to Clariion Support Forum ( Actions > Move ). What is the status of Virtual Disk in Navisphere ? Is it still initializing ?

jimmsk · Answer

Hi,The status of&#xa0; Virtual Disk in Navisphere is normal as you see below.Here on Navisphere:I did destroy and recreate it twice and every time the initialization completed successfully.Here on Windows 2012 Disk Management:

Vipin VK · Answer

Can you try initializing ( from disk management ) Disk 5 now ( i.e, after the completion of initialization of the virtual disk).

jimmsk · Answer

I cannot. It is greyed out.Double click the Offline brings 'Device is not ready'And here are few Tab info from Properties:1.2.3.4.The first time or after deletion when&#xa0; I assign the virtual disk and start Disk management in Windows, the pop up asks to initiliaze disk 5 but its fails whth error 'Device not ready'.Thanks.

CLARiiON

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