MD3000i virtual disk disconnecting from win2k8 server

Hi,

We have windows server 2008 with built in iSCSI initiator. We have connected few virtual disks from MD3000i by using microsofr iSCSI initiator. Suddenly server performace was very poor and unable to connect to server  through RDC. After sometime we were able to connect the server and we were verified the eventviewer to find about the issue.

I have found below errors in event viewer.

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Log Name:      System
Source:        iScsiPrt
Date:          7/6/2009 2:46:35 PM
Event ID:      7
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      sospldabs062.planetinstall.local
Description:
The initiator could not send an iSCSI PDU. Error status is given in the dump data.
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Log Name:      System
Source:        mpio
Date:          7/6/2009 2:49:32 PM
Event ID:      32
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      sospldabs062.planetinstall.local
Description:
Dell MD3000/MD3000i DSM failed to return a Path to \Device\MPIODisk1.
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Log Name:      System
Source:        disk
Date:          7/6/2009 2:49:52 PM
Event ID:      15
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      sospldabs062.planetinstall.local
Description:
The device, \Device\Harddisk2\DR2, is not ready for access yet.
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Log Name:      System
Source:        iScsiPrt
Date:          7/6/2009 3:21:19 PM
Event ID:      1
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      sospldabs062.planetinstall.local
Description:
Initiator failed to connect to the target. Target IP address and TCP Port number are given in dump data.
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I don't know the reason and solution for this issue. Can anyone suggest solution to avoid these issues in future?

- Raguraman.R