Showing posts with label company. Show all posts
Showing posts with label company. Show all posts

Tuesday, March 20, 2012

Active/Active cluster

I just started at a new company and am looking at their active/active cluster
and immediatly saw that the CPU usage between the machines is very different.
When I asked why, they said the DB1 is on node 1 and DB2 is on node 2.
Duh.
What am I missing? I thought an active/active cluster would have the same
databases on each and the usage between the servers would be roughly similar.
Windows Server 2003, SQL Server 2000.
So where is the fault tollerence then? If I lose Server A, then without
access to Server A's databases how can Server B pick up the load?
"Edwin vMierlo" wrote:

> I mean :
> You can have NOT more than one server accessing the same disk
> "Edwin vMierlo" <EdwinvMierlo@.discussions.microsoft.com> wrote in message
> news:ebStYocdHHA.4516@.TK2MSFTNGP04.phx.gbl...
> same
> each
> the
> as
> its
>
>
|||> "JayKon" <JayKon@.discussions.microsoft.com> wrote in message
> news:1C79A996-B8AF-49CD-AE78-05F5AFC3F473@.microsoft.com...
> the group/instance will move over to Server B, and your database will be
> online and accessible.
>
OK, to see this for myself when I get in, I should see the same drives setup
on the two machines. However, I will only be able to access drives from the
active server?
|||Correct. The drives are mounted and acccessable from a single node at a
time. The cluster service arbitrates ownership of resources to prevent
multiple nodes from controlling the same resource at the same time. The
node that "owns" the quorum disk is the tie-breaker in all decisions. The
cluster service also monitors the running SQL instances and determines when
to fail them to another node. Clustering uses resource groups and
dependencies to ensure that all the resources required for a particular SQL
instance are always on the same node.
And Edwin is 100% correct in that "Active\Active" is an outdated term that
does not apply to current technologies and is highly misleading.
Geoff N. Hiten
Senior Database Administrator
Microsoft SQL Server MVP
"JayKon" <JayKon@.discussions.microsoft.com> wrote in message
news:C14DF48D-AE91-4AEC-A828-A1D0F1ADD0E9@.microsoft.com...
> OK, to see this for myself when I get in, I should see the same drives
> setup
> on the two machines. However, I will only be able to access drives from
> the
> active server?
>
|||Lastly SQL Clusters are Highly Available and should never be considered
Fault Tolerant.
Highly Available is when I come anytime my wife calls me.
Fault Tolerant = Marriage.
You don't want to be married to you SQL Cluster You do want it around
whenever you call it though.
Cheers,
Rodney R. Fournier
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering Website
http://msmvps.com/clustering - Blog
http://www.clusterhelp.com - Cluster Training
ClusterHelp.com is a Microsoft Certified Gold Partner
"Geoff N. Hiten" <SQLCraftsman@.gmail.com> wrote in message
news:e1N98lfdHHA.4696@.TK2MSFTNGP02.phx.gbl...
> Correct. The drives are mounted and acccessable from a single node at a
> time. The cluster service arbitrates ownership of resources to prevent
> multiple nodes from controlling the same resource at the same time. The
> node that "owns" the quorum disk is the tie-breaker in all decisions. The
> cluster service also monitors the running SQL instances and determines
> when to fail them to another node. Clustering uses resource groups and
> dependencies to ensure that all the resources required for a particular
> SQL instance are always on the same node.
> And Edwin is 100% correct in that "Active\Active" is an outdated term that
> does not apply to current technologies and is highly misleading.
> --
> Geoff N. Hiten
> Senior Database Administrator
> Microsoft SQL Server MVP
>
>
> "JayKon" <JayKon@.discussions.microsoft.com> wrote in message
> news:C14DF48D-AE91-4AEC-A828-A1D0F1ADD0E9@.microsoft.com...
>
|||Nicely put, Rodney.
Geoff N. Hiten
Senior Database Administrator
Microsoft SQL Server MVP
"Rodney R. Fournier [MVP]" <rod@.die.spam.die.nw-america.com> wrote in
message news:O2HbL2fdHHA.4308@.TK2MSFTNGP02.phx.gbl...
> Lastly SQL Clusters are Highly Available and should never be considered
> Fault Tolerant.
> Highly Available is when I come anytime my wife calls me.
> Fault Tolerant = Marriage.
> You don't want to be married to you SQL Cluster You do want it around
> whenever you call it though.
> Cheers,
> Rodney R. Fournier
> MVP - Windows Server - Clustering
> http://www.nw-america.com - Clustering Website
> http://msmvps.com/clustering - Blog
> http://www.clusterhelp.com - Cluster Training
> ClusterHelp.com is a Microsoft Certified Gold Partner
>
> "Geoff N. Hiten" <SQLCraftsman@.gmail.com> wrote in message
> news:e1N98lfdHHA.4696@.TK2MSFTNGP02.phx.gbl...
>
|||> Highly Available is when I come anytime my wife calls me.
That is possible because there are two or more Rodney's running around. When
one is naughty and not available, another is available to answer the call.
Linchi
"Rodney R. Fournier [MVP]" wrote:

> Lastly SQL Clusters are Highly Available and should never be considered
> Fault Tolerant.
> Highly Available is when I come anytime my wife calls me.
> Fault Tolerant = Marriage.
> You don't want to be married to you SQL Cluster You do want it around
> whenever you call it though.
> Cheers,
> Rodney R. Fournier
> MVP - Windows Server - Clustering
> http://www.nw-america.com - Clustering Website
> http://msmvps.com/clustering - Blog
> http://www.clusterhelp.com - Cluster Training
> ClusterHelp.com is a Microsoft Certified Gold Partner
>
> "Geoff N. Hiten" <SQLCraftsman@.gmail.com> wrote in message
> news:e1N98lfdHHA.4696@.TK2MSFTNGP02.phx.gbl...
>
>
|||I wish, but I know she does not wish that!!!
Cheers,
Rodney R. Fournier
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering Website
http://msmvps.com/clustering - Blog
http://www.clusterhelp.com - Cluster Training
ClusterHelp.com is a Microsoft Certified Gold Partner
"Linchi Shea" <LinchiShea@.discussions.microsoft.com> wrote in message
news:94AA9827-F878-432D-BAC6-D1A3ECBE7F23@.microsoft.com...[vbcol=seagreen]
> That is possible because there are two or more Rodney's running around.
> When
> one is naughty and not available, another is available to answer the call.
> Linchi
> "Rodney R. Fournier [MVP]" wrote:

Thursday, February 16, 2012

Accessing SQL Server Analysis Services through something other than Windows Based Authentication

Hi,

My company has developed several Analysis Services cubes for a client. They also developed an application for them to read the cubes. However, the problem comes from the fact that these cubes have to be read by anyone that accesses them, not just people belonging to the domain in which the server resides.

Now, my question is, how can they make the app so that anyone can access the cubes from anywhere, but by bypassing the Windows Authentication Procedure? This app is web-based.

I know you cannot use SQL Based authentication on Analysis Services. Is there a way I can set up IIS to maybe use the IUSR_<username> user for authentication? Maybe by adding the IUSR_<username> to the list of administrators?

Thanks,
If you set up HTTP authentication you can specify a username and password on the connection string. AS 2005 also supports allowing anonymous connections. I would not add the IUSR account to the administrators role, they only need to be added to a standard role that has rights to read the cube(s).

Sunday, February 12, 2012

Accessing printer settings in the sql reporting services 2000

I am using Visual Studio 2003 and SQL Reporting Services 2000. I am creating a Intranet based application which will be used by our company employees only. I want to know how can I set a printer, paper tray and paper size in the report settings, so that user need not to change the printer settings for each report. In the application some of the reports will be printed on pre-printed paper, some on the plain paper. and i want to print the reports which is not a defaul printer.

I did not find any solution yet... any ideas ... It will be a great help for me..

Thursday, February 9, 2012

Accessing MS SQL DB on own server?

Hi

If my site is hosted with an external company web host can I use ASP.NET pages to connect to a MS SQL DB that is on my company's internal server if I had MS SQL installed on it?

My company's server is always on and always connected to the internet.

I have access to my company's server if I need to set anything up on it for this to happen.

There will not be any kind of overload as the site is not accessed constantly.

Also, would this cause any kind of security leak? If so how would I go about plugging this hole?

Our server does have confidential info on it.

Cheers

kefi2927Since you haven't received a reply I'll post my thoughts. As someone who knows little about networking and security I personally would not do this, although it would be possible. Exposing a server to the internet is not something to be taken lightly, and will require diligence in keeping up with patches and security issues.

My 2 cents,
Terri