Try this.

Below is the steps for the walk around.
1) Create a Connect_SAN.bat with following commands and put it in c:\
- Diskpart /s “c:\Connect_SAN.txt”
- Save file
2) Create a Connect_SAN.txt with following commands and put it in c:\
- Select Disk N (replace N with the disk number which is offline. You can check this in logical Disk Management)
- Online
- Exit
- Save file
3) Open the Group Policy Editor (Start > Run > enter ‘gpedit.msc’.)
4) Expand ‘Computer Configuration’.
5) Expand ‘Windows Settings’.
6) Select ‘Scripts (Startup/Shutdown)’.
7) Double-click on ‘Startup’ in right-hand panel. Click on the ‘Add’ button.
9) Click on the ‘Browse’ button.
10) Navigate to your batch file(Connect_SAN.bat), select it and OK your way out of the Editor.
11) Close the Editor.
12) Reboot System