> Can anyone help me to download the MPIO DDK for Windows 2008 server...
> Version 6.0.6001.1800
>
> "Joe DD" wrote:
>

>> Thank you,
>>
>> Joe.
>>
>>
>> "Kenny Speer" wrote:
>>

>>> Answers inline:
>>>
>>> Joe DD wrote:

>>>> Kenny,
>>>>
>>>> Sorry for putting the questions in other forms.
>>>> In order for the iSCSI storage box to work in MPIO mode with Microsoft iSCSI
>>>> initiator,
>>>> 1. For Windows 2000 Server and Windows 2003 Server, the iSCSI storage vendor
>>>> has to provide the DSM (i.e. contact the iSCSI storage vendor to get their
>>>> DSM installed). That's a requirement; otherwise, the MPIO does not work on
>>>> the iSCSI initiator.

>>> [Kenny] That is incorrect. The Microsoft iSCSI DSM is designed to claim
>>> any iSCSI LUN which is not claimed by another DSM. This has been this
>>> way forever and has not and will not change. You do not need a special
>>> DSM from a vendor to do iSCSI MPIO.
>>>
>>> Microsoft implemented this so that customers could use MPIO (since the
>>> architecture is Microsoft specific) without waiting for storage vendors
>>> to implement an iSCSI DSM.
>>>

>>>> 2. For Windows 2008 Server, if there is no vendor DSM, the msdsm will be
>>>> used instead (i.e. no other DSM to claim the device). This also means that
>>>> the MPIO does work if there is no vendor DSM installed.

>>> [Kenny] That is correct for iSCSI and FCP (will require ALUA on the
>>> target for FCP).
>>>

>>>> Is that correct?
>>>>
>>>> Thanks,
>>>>
>>>> Joe.
>>>>
>>>>
>>>> "Kenny Speer" wrote:
>>>>

>>>>> Not for iSCSI. When you install the Microsoft iSCSI Initiator, you
>>>>> simply check the MPIO checkbox during installation.
>>>>>
>>>>> When you login to the target, you check the MPIO checkbox. For multiple
>>>>> paths you login multiple times.
>>>>>
>>>>> The msiscdsm will claim any iSCSI device that is not claimed by another
>>>>> DSM first. So, it will work out of the box.
>>>>>
>>>>> This assumes that your storage vendor has qualified and supports the
>>>>> Microsoft iSCSI Initiator and DSM.
>>>>>
>>>>> ~kenny
>>>>>
>>>>> Joe DD wrote:

>>>>>> Kenny,
>>>>>>
>>>>>> I'll install and test on Microsoft Server 2008 today. However, from your
>>>>>> answer, I still have to provide the DSM for my iSCSI device if I want it
>>>>>> supported on Windows 2000 Server, Windows 2003 Server. Is that correct?
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Joe.
>>>>>>
>>>>>>
>>>>>> "Kenny Speer" wrote:
>>>>>>

>>>>>>> A production version is shipped with Microsoft Server 2008 and supports
>>>>>>> both iSCSI and FCP.
>>>>>>>
>>>>>>>
>>>>>>> Joe DD wrote:

>>>>>>>> I'm still confusing after reading Microsoft Multipath I/O: Frequently Asked
>>>>>>>> Questions at
>>>>>>>> http://www.microsoft.com/WindowsServer2003/technologies/storage/mpio/faq.mspx. So, I have 2 questions,
>>>>>>>> 1. Is the msdsm code in Microsoft MPIO Driver Development Kit (DDK) version
>>>>>>>> 1.21 just a sample code as gendsm?
>>>>>>>> 2. Is that true that for any iSCSI target devices, the vendors have to
>>>>>>>> provide their own DSMs? and they can use Microsoft gendsn and/or msdsm in the
>>>>>>>> Microsoft DDK as samples.
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>>
>>>>>>>> Joe.