I've got 2 Arrays on my SAN.

Array 1 is 66 gb.
Array 2 is 230 gb.

I've partitioned the drives in MS2003 this way:
Array 1, Drive Q: (Quarum) 2gb
Array 1, Drive S: 64gb
Array 2, Drive R: 230gb.

I installed SQL Server after setting up MSCS.
Everything went fine.

Now I want to add the Drive S: as a resource in MSCS, so I can store
my transaction logs on it.

MSCS seems to look for a Physical Disk.

Is this possible?

Oh its possible all right. MSCS has to have a Physical disk, as you have
noticed. You have two to the OS> 1 - 66 GB, 1 230 GB.

Cheers,

Rod

"Travis" <twillard (AT) generasystems (DOT) com> wrote

Sorry, I'm probably not being clear.

Cluster Group has 1 physical disk, Q:
SQL Server has 1 physcial disk, R:

I've broken the cluster's physical disk into two partitions: Q and S.

How can I get my SQL Sever group to see the S partition as a resource,
so i can store my logs there?

When I try to add it as a physical drive, it of course doesn't show up.

Is there another resource type that allows me to see the partition?

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Ok, so here is my trouble.
When i go into add a resource as a phyical dive, no drive letter shows
up.

How do I add the S: drive so that the SQL Cluster can see it?


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You have all 3 drive letters already in the cluster. Double click on the Q
drive and look at parameters, notice it says Q & S. That is because
clustering goes by the physical disk and not partitions.

You add another array or have your logs and quorum on the same physical
disk, but different partitions of it.

Cheers,

Rod
"Travis Willard" <twillard (AT) generasystems (DOT) com> wrote

See my other reply

Cheers,

Rod

"Travis Willard" <twillard (AT) generasystems (DOT) com> wrote

Hi Travis,
It depends on how exactly the drives have been configured in Array 1. If Q:
and S: are file system partitions on the same 'disk' (LUN in the array) then
you will not be able to add a new Physical Disk resource. If they are single
partitions each on their own 'disk' (LUN in the array) then you will be able
to if you first set the disk up for the o/s, basically by creating and
formatting the 64 GB NTFS partition (if you don't use NTFS the disk won't
appear in the GUI when you try to add the resource).

The Cluster Administrator GUI to add a physical disk resource queries the
Clusdisk key in HKLM\System\CCS\Services and looks for disk signatures (4
byte ID numbers generated by the o/s). These signatures are created and
written to the disk's master boot record (defined as first sector on the
disk, before the file system partitions begin, but remember in an array this
all virtualised) when you first use the Disk Management snap-in on a disk in
Computer Management.

Upshot of this is after you have configured the LUNs in the array you have
to configure the disk in Disk Management for it to be visible to the
clusdisk driver and therefore appear in the GUI to add a Physical Disk
resource.

Hope this helps.


"Travis" <twillard (AT) generasystems (DOT) com> wrote

Thanks Peter,

I was able to solve the problem with a little trail and error. I added a
new Array and then created a new partition and was able to add it as a
physical disk resource. Great! SQL Server would still not see it! So
finally after beating my head on the wall, I figured out that you need
to add the physical disk as a dependency of the SQL Server resource.
Problem solved!

I've not got an array that is raid 1, for my quorum and some space for
backing up. 1 array for my data (raid 5) and another for my logs (raid
5).

Thanks for responding!



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