ExchangeStoreDB error

The application event on our mailbox server is giving the error :

At '9/28/2016 8:17:53 AM', database copy 'XXXXXXXX' on this server encountered an error. For more information, consult the Event log for "ExchangeStoreDb" or "MSExchangeRepl" events.

At '9/28/2016 8:17:51 AM' database copy 'XXXXXXXXX' on this server appears to have an I/O error that it may be able to repair.  To help identify the failure, consult the Event log on the server for other storage and "ExchangeStoreDb" events. Service recovery was attempted by failover to another copy. The failover was unsuccessful in restoring the service because of the following error: 'There is only one copy of this mailbox database (XXXXXXXX). Automatic recovery is not available

In the system events the error is:

The device, \Device\Harddisk4\DR4, has a bad block.

disk 4 is hard drive on which the above database is located.  

What should i do?  Should i run a chkdsk on disk 4.  The used capacity is 1.1 TB.  Only two databases are giving error on the disk which has 5 databases.  I am moving the mailboxes from the databases to a different hard disk.  What is the best solution?  Thanks.
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Niten KumarPrincipal Systems AdministratorAsked:
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AkhaterConnect With a Mentor Commented:
the error is clear you have a bad block on the disk

I would move all DBs from this disk asap, for the already affected DBs I would create another DB on a different disk and move all the users to the other DB

it is a time-bomb and the disk could fail at anytime
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Niten KumarPrincipal Systems AdministratorAuthor Commented:
Thanks for your solution.  I have created new databases and moving mailboxes now.
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