Hi Dinnu2193,

It sounds like you may have a drive that is soon to fail. It would be best to call into our hardware support queues to confirm the potential failure and to gain next steps. 

our latest support information can be found here:

http://www.dell.com/support/incidents-online/us/en/04/contactus/dynamic

Let us know if reaching out to the hardware teams does not get you the traction you need!