Groups | Blog | Home
all groups > sql server clustering > february 2006 >

sql server clustering : SQL Clustering on VS2k5!


Vai
2/14/2006 8:51:49 PM
Has any1 done SQL Clustering on a virtual server 2k5?
I am having a tough time going through it, will appreicate any feedbacks..I
was succesful in setting up cluster with just the Quorum Disk on a shared
SCSI Bus. So far the cluster svc is up and running with the Cluster Admin
MMC.
Now when I want to install the SQL Virtual instances I am struggling......
Problem is when i add a SCSI Adapter I get only 2 LUN value (6 & 7) which I
have already used it in setting up the Quorum.
Lot of people say add scsi adapter but my friend adding a scsi adapter is
different than adding a scsi on a shared bus which as a matter of fact is
required here....


Please advice.

TIA

Geoff N. Hiten
2/14/2006 9:12:51 PM
Yes, I have done SQL 2000/SQL2005 in a virtual server.

The gotcha with Virtual Server that isn't much mentioned is that in
clustering mode, you get one disk drive per virtual SCSI adapter. To get
multiple shared disks, you need multiple SCSI buses and SCSI adapters. You
add a SCSI adapter to each host node along with a virtual disk. One host
gets ID 7, one is ID 6. You have successfully done this with your quorum
disk and need to repeat the process with another bus and disk.

Here is an example:

Node 1:
Bus 1, SCSI ID 7, SCSI Disk 1 (Quorum
Bus 2, SCSI ID 7, SCSI Disk 2 (SQL)

Node 2
Bus 1, SCSI ID 6, SCSI Disk 1 (Quorum)
Bus 2, SCSI ID 6, SCSI Disk 2 (SQL)

You get up to four virtual SCSI adapters per virtual servers.

--
Geoff N. Hiten
Senior Database Administrator
Microsoft SQL Server MVP



[quoted text, click to view]

Vai2000
2/15/2006 11:10:44 AM
Thanks, though my Disk Manager now reports an unreadable disk!!! Do I have
to have the Quorum as Dynamic disk too??
I went ahead and added a second SCSI Adapter the ID 7 and checked shared for
clustering.

Here's the config
Virtual SCSI adapter 1 SCSI adapter ID: 7
Attached to a shared SCSI bus
Virtual SCSI adapter 2 SCSI adapter ID: 7
Attached to a shared SCSI bus

Virtual hard disk 1 Attached to primary channel (0)
Virtual hard disk file "VSSQLNODE1.vhd"
Maximum size is 5 GB; Currently expanded to 2.3 GB
Virtual hard disk 2 Attached to SCSI 0 ID 0
Virtual hard disk file "Quorum.vhd"
Maximum size is 500 MB; Currently expanded to 500 MB
Virtual hard disk 3 Attached to SCSI 1 ID 0
Virtual hard disk file "FileGroup1.vhd"
Maximum size is 3 GB; Currently expanded to 3 GB



[quoted text, click to view]

Vai2000
2/15/2006 12:20:01 PM
Thanks , it worked after several attempts.
Also I had to go from NODE2, configure new disks and then import on NODE1

[quoted text, click to view]

Geoff N. Hiten
2/15/2006 12:24:44 PM
That is pretty normal for clustering, even without Virtual Server. You
bring up one node to format the disks and set them up as clustered
resources. You then bring up the other node which can then attach to them
correctly. If you try and bring both nodes online at the same time, they
will often hang during boot-up.

--
Geoff N. Hiten
Senior Database Administrator
Microsoft SQL Server MVP


[quoted text, click to view]

AddThis Social Bookmark Button