Solved

SAN and Clustering

Posted on 2004-08-03
8
766 Views
Last Modified: 2013-11-14
I will be working with members of our team in installing a SAN.  My department will be utilizing that SAN.  I have purchased 2 servers and some HBA's to connect to the SAN for our own storage project.  I am looking for failover when I have completed the installation. I am new to SAN and clustering, so I am taking this slow.  It's my assumption I will be running the clustering service within W2003 server with my 2 new servers as nodes, correct?  Is there other options to provide failover?  

Thanks
0
Comment
Question by:mchristo63
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 3
8 Comments
 
LVL 1

Expert Comment

by:jamespung
ID: 11706938
What service are you looking to cluster or make redundant.
Microsoft Clustering is a great way to go, but the application or service needs to be cluster aware.
0
 

Author Comment

by:mchristo63
ID: 11708078
The SAN will be used for File shares.  No plans for applications at this time, primaraly just File shares.  
0
 
LVL 2

Expert Comment

by:orion411
ID: 11709411
Ok so you have two servers to put in your cluster. The cluster will serve file shares only. I'd recommend an active-active cluster for file shares only. This way you can use both servers. Just make sure one server can perform at an acceptable level in case of a server failure.

Here is a list of what you can make redundant to provide a resilent cluster.
1) Multiple HBAs (in case a switch port, HBA or cable fails)
2) Path management software (this handles HBA failover)
3) Clustered servers (you are using Win2k3 for this)
4) Two FC fabrics (in case one fabric fails you will have another)
5) RAID 5 or RAID1+0 storage
6) Redundant controllers in your SAN

What type of SAN hardware are you using? By this I mean what brands of HBA, disk array and switch are you using.
0
Free eBook: Backup on AWS

Everything you need to know about backup and disaster recovery with AWS, for FREE!

 

Author Comment

by:mchristo63
ID: 11709456
IBM SAN hardware.  

When you say I can use both servers, isn't my understanding in a cluster environment (not NLB clustering) only one server is used while the other is for failover?
0
 
LVL 2

Expert Comment

by:orion411
ID: 11709622
There are two types of clusters. Active-Active and Active-Passive. You can't run a virtual server on more than one cluster node. However, you can create multiple virtual servers. You'll need to split your file shares between the nodes in your cluster. I believe Win2k3 can support 4 node clusters.

For example you build two new servers Cluster_Node1 and Cluster_Node2. Then create three news Groups in cluster administrator. I like to name the groups according to the virtual server name. For example I would create ClusterA, FileSrv1 and FileSrv2. The first group is going to hold your Quorum drive. You will need at least three things: Network Name, IP Address and Physical Disk. I like to make the Quorum physical disk drive Q:. Now for the virtual file servers you add at least 4 new resources: Network Name, IP Address, Physical Disk and File Share. You can have multiple file shares and physical disks in any one Group.

In this case if the physical server FileSrv1 or FileSrv2 fails for any reason then it's owned groups will failover to the other node. This is why you want to make sure one server can handle the load of both. Of course people will always complain when things get slower. You just have to remind them that it would always be slower if it was active-passive.
0
 

Author Comment

by:mchristo63
ID: 11709735
You mention virtual servers.  Can you define your definition of virtual server in your senerio?

What I have done so far is I opened Cluster Admin and created my new cluster, and then added my first node.  From there I am assuming I am ready to create a new group and my resource.  Your example above is great, but you threw me when you said virtual servers.

Thanks
0
 
LVL 2

Accepted Solution

by:
orion411 earned 500 total points
ID: 11709963
When you setup a new group and give it a Network Name and IP Address you now have a virtual server. When the Group is online you can ping the Network Name and the reply will be from the IP Address you gave to the Group. I don't know why they just don't rename Group to Virtual Server. I can't think of any reason to have a Group that doesn't have a Network Name and IP Address. Anyway, I call it a virtual server, because it looks like another server on your network. It has a name and an IP Address. I would recommend you read a lot of Microsoft whitepapers on clustering before you get into it.

This is a great article on Windows 2000 MSCS.
http://www.microsoft.com/windows2000/techinfo/planning/server/clustersteps.asp

Also you may want to read Q258750
http://support.microsoft.com/default.aspx?scid=kb;en-us;258750&sd=tech
0
 

Author Comment

by:mchristo63
ID: 11710112
Great. Thanks
0

Featured Post

Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

A Bare Metal Image backup allows for the restore of an entire system to a similar or dissimilar hardware. They are highly useful for migrations and disaster recovery. Bare Metal Image backups support Full and Incremental backups. Differential backup…
Many businesses neglect disaster recovery and treat it as an after-thought. I can tell you first hand that data will be lost, hard drives die, servers will be hacked, and careless (or malicious) employees can ruin your data.
This tutorial will walk an individual through configuring a drive on a Windows Server 2008 to perform shadow copies in order to quickly recover deleted files and folders. Click on Start and then select Computer to view the available drives on the se…
This tutorial will walk an individual through the process of configuring basic necessities in order to use the 2010 version of Data Protection Manager. These include storage, agents, and protection jobs. Launch Data Protection Manager from the deskt…

737 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question