Win Server 2016 - target connected but not visible. In Win 10 everything works fine !

iSCSI related applications
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karroryfer
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Joined: Wed Jun 14, 2017 7:46 pm

Win Server 2016 - target connected but not visible. In Win 10 everything works fine !

Post by karroryfer »

Hi
I've created 1TB LUN ( and few others) on my QNAP and target. Connected it to my lab ( trial ) Win 2012 SRV ( on this volume I've enabled deduplication)
After few months I format my server and Installed Win 2016 SRV - then I got this problem.
Windows ISCSI initiator connects to all iSCIS targets on my QNAP ( TS-259) but on DiskManager see all disk except this one.
In is not visible also from a command line - diskpart etc.

Funny thing is that I could connect to this target from Windows 10 without problems ( except one of course - W10 doesn't support data deduplication ...)

After some investigations, I finally give up and installed again new Windows 2012 SRV instance. But the problem is the same as in Win 2016 !!!

Of course, I tried to remove iSCSI target on my QNAP ( TS-259) and recreate it. Nothing changed - it works on Win 10 and doesn't on Win 2012 and 2016 !!!

So I started to think that problem is on QNAP firmware - now I have newest firmware version 4.2.6 but I created this LUN a few months ago - don't remember exactly but firmware was earlier then 4.2.4


I same output from Win10

PS C:\WINDOWS\system32> Get-IscsiSession

AuthenticationType : NONE
InitiatorInstanceName : ROOT\ISCSIPRT\0000_0
InitiatorNodeAddress : iqn.1991-05.com.microsoft:lene95-iii17-dhv
InitiatorPortalAddress : 0.0.0.0
InitiatorSideIdentifier : 400001370000
IsConnected : True
IsDataDigest : False
IsDiscovered : False
IsHeaderDigest : False
IsPersistent : False
NumberOfConnections : 1
SessionIdentifier : ffffc687be263010-400001370000000b
TargetNodeAddress : iqn.2004-04.com.qnap:ts-259proplus:iscsi.ani.c6adac
TargetSideIdentifier : 0600
PSComputerName :

AuthenticationType : NONE
InitiatorInstanceName : ROOT\ISCSIPRT\0000_0
InitiatorNodeAddress : iqn.1991-05.com.microsoft:lene95-iii17-dhv
InitiatorPortalAddress : 0.0.0.0
InitiatorSideIdentifier : 400001370000
IsConnected : True
IsDataDigest : False
IsDiscovered : False
IsHeaderDigest : False
IsPersistent : False
NumberOfConnections : 1
SessionIdentifier : ffffc687be263010-400001370000000d
TargetNodeAddress : iqn.2004-04.com.qnap:ts-259proplus:iscsi.vmki16.c6adac
TargetSideIdentifier : 0600
PSComputerName :

AuthenticationType : NONE
InitiatorInstanceName : ROOT\ISCSIPRT\0000_0
InitiatorNodeAddress : iqn.1991-05.com.microsoft:lene95-iii17-dhv
InitiatorPortalAddress : 0.0.0.0
InitiatorSideIdentifier : 400001370000
IsConnected : True
IsDataDigest : False
IsDiscovered : True
IsHeaderDigest : False
IsPersistent : True
NumberOfConnections : 1
SessionIdentifier : ffffc687be263010-4000013700000011
TargetNodeAddress : iqn.2004-04.com.qnap:ts-259proplus:iscsi.ded2.c6adac
TargetSideIdentifier : 0200
PSComputerName :
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