Re: Basic clustering Q

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A LUN is what the OS sees as a physical disk -
http://www.webopedia.com/TERM/L/LUN.html.

Microsoft clustering does not understand what a partition is, it will take
all partitions and make them the same disk resource. So, if you take a RAID
5 with however many partition, clustering will see that as one disk resource
and you will not have the level of HA you want or need!

You are better off with 3 sets of RAID configurations.

Cheers,

Rod

MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering Website
http://msmvps.com/clustering - Blog
http://www.clusterhelp.com - Cluster Training
http://msmvps.com/clustering/archive/2005/07/20/58233.aspx NYC Clustering
class

"Chris Rhodes" <chris@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:OrdlnG2nFHA.1148@xxxxxxxxxxxxxxxxxxxxxxx
> sounds like good idea, but pardon my ignorance....
> is the LUN like the partition or is that phyiscal disks?
>
> eg we are thinking of RAID5 with hot spare, so would we partition that
> into 3?
> or use 3 different disk combo's? ie RAID 5 for file, RAID0 for quorum etc
>
> Chris
>
> "Ramon Jiménez [MVP]" <rjimenezm.at.hotmail@com> wrote in message
> news:%23UIKgs0nFHA.3068@xxxxxxxxxxxxxxxxxxxxxxx
>> Hi Chris,
>>
>> I would recommend you to generate 1 dedicated LUN for your Quorum
>> Resource (size between 500MB and 1 GB) and then separated LUN's for File
>> & Print resources (I wouldn't mix File& Print resources in the same
>> LUN/Cluster group)
>>
>> --
>> Saludos
>> Ramon Jiménez, PMP
>> MCSE 2000/2003, CCA, ITIL
>> MS MVP - Windows Server System - Infrastructure Architect
>> "Chris Rhodes" <chris@xxxxxxxxxxxxxxxxxxxxx> wrote in message
>> news:uR4hUn0nFHA.2904@xxxxxxxxxxxxxxxxxxxxxxx
>>> This may seem a little elementary for some of you out there, but bear
>>> with
>>> me I am not fantastically experienced in the world of clustering!
>>>
>>> I have a customer who wants high-avail file and print services as well
>>> as
>>> AD/DNS etc on 2 boxes.
>>> Specifically we are looking at 2x HP DL380's with a MSA1000 storage box
>>> over
>>> fibre.
>>>
>>> I know AD cannot be clustered, but can run OK as two seperate instances
>>> of
>>> DC's on the 2 boxes.
>>> So are we OK just to create a shared disk resource for the file and
>>> print
>>> sharing?
>>>
>>> And am I right in thinking we need to do this as a single quorum device
>>> cluster with the disk resource(s) set to fail over to server2?
>>>
>>> Thoughts?
>>> Am I on track here?
>>>
>>> Chris.
>>>
>>>
>>>
>>
>>
>
>


.

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