Re: Clustering and Mirror Data sets?

Thanks for the replies. Yes I am only looking for some local failover, not
geo-cluster. I am trying to test out our software with the effects of
redundant servers to allow minimal downtime in the event of a hard ware
failure or server issue, will also allow system maintance on one server while
the other system is still hosting the application.

Problem is that I can not justify the 10K plus for a SAN solution to do some
testing on how our software will react if when a failover occurs.

My thought process is to map a drive (via login script) over to another
server to "simulate" a shared drive (SAN connection) just as when the HBA
cards mount the file system to the SAN.
Not sure if this will work, just for testing purposes, but will give it a try.

Thanks


"John Toner [MVP]" wrote:

Well, I don't think I'd call this a multi-site cluster...sounds to me like
he's looking more for a cluster without shared storage (which I guess is
technically true for geo-clusters). Most cluster applications will require
shared storage and it sounds like your application would also need this
requirement. MSCS alone does not offer data replication so you could not do
this without 3rd party software or installing some form of shared storage.

Also, MSCS is a "shared nothing" cluster so only one server would be able to
access the cluster resources at a time. It is possible to add additional
resources to your cluster so your other node is not just a "standby" node,
but MSCS does not give you any sort of load balancing.

Hope this helps.

Regards,
John

Visit my blog: http://msmvps.com/blogs/jtoner

"Edwin vMierlo [MVP]" <EdwinvMierlo@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message news:%23NsXwJ5cIHA.4196@xxxxxxxxxxxxxxxxxxxxxxx
You are talking about a multi-site cluster, and yes it can be done with
Microsof Failover Cluster
However, the data replication part is still 3rd party, so you need a
hardware (SAN vendor) solution or software solution for your multi-site
cluster to replicate the data and to manage the accessibility to that data
in relation to the disk, Microsoft Failover cluster still "expects" a
"shared disk" as a cluster resource.

Rgds,
Edwin.



"dfontenot" <dfontenot@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:DCB8FECA-EDA6-4FFB-90D9-A29C3DC45D20@xxxxxxxxxxxxxxxx

Hello all, I seem to always browse through the forum and find my answer,
never having to ask but this time a little more info is needed..

I have an application that runs as a server service on 2003 servers, it
can
be started up either as a system service or a manually started service
(application), that has prioprietary database files, folders and
configuration that runs on the local file hard disk. OS and what not is
installed on the C:\ Drive.
Application is installed and running on the D:\ drive, all data files
and
configuration is running/stored on the E:\ Drive. I am currently using
a
3rd
party product to mirror this data and fail over between 2 servers,
product
offers both High Available and mirror data sets in the resource group
for
the
local data on the servers. Only one server can access the data source
and
run the resource group. The other server is hot standby with mirror
data
set.
I am looking to configure,test and possibly use microsoft as a complete
solution. Can this be done with no 3rd party software or SAN solution?
I am looking at MSCS and DFS or something of this sort. I do not have
access to a SAN solution, so how can I configure 2 or 3 (if needed)
servers
to run HIGH AVAILABILITY and have the data mirrored to both servers so
that
either server would be able to run the resources, applications and also
have
the up to date data?

Any idea's or help would be greatly appreciated..
Thanks





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