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the error was &quot;The SR operation cannot be performed because a device underlying the SR is in use by the host.&quot;
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the error was "The SR operation cannot be performed because a device underlying the SR is in use by the host."

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I have added a new hard disk to my citrix xenserver (500GB). <br />
I created a file system (mkfs command) and it is completed. The new partition is sdb.<br />
<br />
I then added the same to fstab entries.<br />
<br />
Later when I tried to add it as a new Storage in xenserver (xe sr-create command) <br />
it says &nbsp;&quot;The storage is already in use&quot;. I have give the name as &quot;Local Storage 2&quot;<br />
<br />
How to rectify this.
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I have added a new hard disk to my citrix xenserver (500GB). 
I created a file system (mkfs command) and it is completed. The new partition is sdb.

I then added the same to fstab entries.

Later when I tried to add it as a new Storage in xenserver (xe sr-create command) 
it says  "The storage is already in use". I have give the name as "Local Storage 2"

How to rectify this.

Citrix Xenserver

Citrix is the synonym for the virtualization and application infrastructure systems developed by the company of the same name. Main areas are application virtualization, Software-As-A-Service (SaaS), cloud-computing and networking. The two most well-known are Citrix XenApp or Citrix CloudPlatform.