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3784
November 7th, 2013 00:00
EMC-AX4 Model: AX4-5i with Windows 2012 iSCSI disk error device is not ready
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
4 Posts
1
November 8th, 2013 04:00
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
2 Intern
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812 Posts
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November 7th, 2013 17:00
Consider moving this discussion to Clariion Support Forum ( Actions > Move ).
What is the status of Virtual Disk in Navisphere ? Is it still initializing ?
jimmsk
4 Posts
0
November 8th, 2013 00:00
Hi,
The status of 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
2 Intern
•
812 Posts
0
November 8th, 2013 00:00
Can you try initializing ( from disk management ) Disk 5 now ( i.e, after the completion of initialization of the virtual disk).
jimmsk
4 Posts
0
November 8th, 2013 00:00
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 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.