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Windows Server 2008 R2 disks go offline after reboot RRS feed

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    I've a strange issue in our environement restart the server2008R2 Disk goes offline. I've manually brung online those disk, than reboot and all returned to normality. 
    This happened couple of servers for a week. 

    Details:
    Server 2008R2 OS
    LUN is configured to SAN and mounted correctly.
    Disk offline drive is dedicated LUN storage connected VM server 2008R2
    There are no logs generated on event logs/Vmware logs,

    with the available logs couldn't conclude cause of this offline disk issues.

    Can you please updated us cause of this issues and why its happened (disk offline after reboot)

    Friday, September 2, 2016 4:27 AM

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    Hi Karthik,

    How are the disks presented to VMs?

    If iSCSI, follow the link that Sandeep posted.

    If through VMware, I suggest you consult VMware technical support for help.

    Best Regards,

    Leo

    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.

    • Proposed as answer by Leo Han Monday, September 19, 2016 8:44 AM
    • Marked as answer by Leo Han Wednesday, September 21, 2016 5:53 AM
    Friday, September 2, 2016 7:41 AM

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    please have a look of below article.

    http://www.dell.com/support/article/us/en/04/SLN132021/en

    Friday, September 2, 2016 4:32 AM
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    Thanks for your reply

    Any idea cause of this issue ??.


    Friday, September 2, 2016 5:06 AM
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    Hi Karthik,

    How are the disks presented to VMs?

    If iSCSI, follow the link that Sandeep posted.

    If through VMware, I suggest you consult VMware technical support for help.

    Best Regards,

    Leo

    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.

    • Proposed as answer by Leo Han Monday, September 19, 2016 8:44 AM
    • Marked as answer by Leo Han Wednesday, September 21, 2016 5:53 AM
    Friday, September 2, 2016 7:41 AM
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    Its not iSCSI volumes. it's SCSI virual disk. Disks presented are dedicated LUN(i.e naa id) through mapping to VM server.

    Its dell article not matching our environment that scenario is ISCSI volumes

    Saturday, September 3, 2016 1:18 AM
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    Hi Karthik,

    The procedures in the link not only apply to Dell devices. You could try on your devices.

    Did you mean you connect the iSCSI targets on host or VM?

    Best Regards,

    Leo

    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.

    Monday, September 5, 2016 6:46 AM
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    Hi Leo,

    Thanks for your reply.

    All data disks presented dedicated LUN storage to a VM (scsi base not iscsi) will go offline after reboot.

    SCSI targets on host/VM

    NOTE: SCSI and ISCSI are different bus.


    Monday, September 5, 2016 10:51 AM
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    Hi Karthik,

    >>NOTE: SCSI and ISCSI are different bus.

    I know.

    I'm afraid I don't have the device to reproduce the issue to analyze. And considering the disks are presented through VMWare, I would suggest you contact VMWare support for help:

    https://www.vmware.com/support/contacts/us_support.html

    Best Regards,

    Leo

    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.

    Tuesday, September 6, 2016 5:35 AM