509(Warning)
Information Store (1548) MailboxDatabase04: A request to read from the file "G:\DatabaseFiles\MailboxDatabase04\MailboxDatabase04.edb" at offset 102179209216 (0x00000017ca5b0000) for 65536 (0x00010000) bytes succeeded, but took an abnormally long time (36 seconds) to be serviced by the OS. In addition, 0 other I/O requests to this file have also taken an abnormally long time to be serviced since the last message regarding this problem was posted 86624 seconds ago. This problem is likely due to faulty hardware. Please contact your hardware vendor for further assistance diagnosing the problem.
507(Warning)
Information Store (1548) MailboxDatabase16: A request to read from the file "K:\DatabaseFiles\MailboxDatabase16\MailboxDatabase16.edb" at offset 204243009536 (0x0000002f8dd50000) for 262144 (0x00040000) bytes succeeded, but took an abnormally long time (36 seconds) to be serviced by the OS. This problem is likely due to faulty hardware. Please contact your hardware vendor for further assistance diagnosing the problem.
510(Warning)
Information Store (1548) MailboxDatabase01: A request to write to the file "F:\DatabaseFiles\MailboxDatabase01\Database\MailboxDatabase01.edb" at offset 0 (0x0000000000000000) for 32768 (0x00008000) bytes succeeded, but took an abnormally long time (33 seconds) to be serviced by the OS. In addition, 0 other I/O requests to this file have also taken an abnormally long time to be serviced since the last message regarding this problem was posted 79395 seconds ago. This problem is likely due to faulty hardware. Please contact your hardware vendor for further assistance diagnosing the problem.
508(Warning)
Information Store (1548) MailboxDatabase06: A request to write to the file "J:\LogFiles\MailboxDatabase06\E0E.log" at offset 37888 (0x0000000000009400) for 512 (0x00000200) bytes succeeded, but took an abnormally long time (31 seconds) to be serviced by the OS. This problem is likely due to faulty hardware. Please contact your hardware vendor for further assistance diagnosing the problem.
118(Error)
At '1/27/2012 12:36:28 AM' the copy of database 'MailboxDatabase07' on this server appears to be experiencing performance issues, possibly as a result of storage failure. Consult the event log on the server for other storage and "ExchangeStoreDb" events for more specific information about the failure. Recovery was not attempted
139 (Error)
(At '1/27/2012 12:36:28 AM' the copy of database 'MailboxDatabase16' on this server appears to be experiencing performance issues, possibly as a result of storage failure. Consult the event log on the server for other storage and "ExchangeStoreDb" events for more specific information about the failure. Recovery was not attempted
At '1/27/2012 12:36:28 AM' the copy of database 'MailboxDatabase16' on this server appears to be experiencing performance issues, possibly as a result of storage failure. Consult the event log on the server for other storage and "ExchangeStoreDb" events for more specific information about the failure. Recovery was not attempted
531(Error)
Information Store (1548) The database engine attempted a clean write operation on page 3164164 of database H:\DatabaseFiles\MailboxDatabase06\MailboxDatabase06.edb. This acton was performed in an attempt to correct a previous problem reading from the page
please suggest me right solution for this.