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Failover clustering (windows server 2008)

    Pertanyaan

  • HI ,

    one of my customer have two servers and more than 200 clients .one of the server have 6 cr processor with four 500 gb sata hdd and the other server with 4 (hdd 302 gb sata). Now they are going to change their software. In-order to achieve good perfomance they want to configure failover clustering.

    How i can configure fail over clustering.what is requirment for failover clustering?

    please help me with the right .....



    16 Maret 2012 5:20

Jawaban

Semua Balasan

  • HI ,

    one of my customer have two servers and more than 200 clients .one of the server have 6 cr processor with four 500 gb sata hdd and the other server with 4 (hdd 302 gb sata). Now they are going to change their software. In-order to achieve good perfomance they want to configure failover clustering.

    How i can configure fail over clustering.what is requirment for failover clustering?

    please help me with the right .....



    16 Maret 2012 5:19
  • Good morning.

    One of your biggest challenge with your configuration to implement failover clustering will be the storage!

    You need to have shared storage (SAN, iSCSI) to build a failover cluster.

    Another thing will be the cluster awareness of the software.

    Have a look at:

    http://technet.microsoft.com/en-us/library/dd197454(v=ws.10).aspx

    http://technet.microsoft.com/en-us/library/cc771404.aspx

    Regards

    Olaf

    16 Maret 2012 7:38
  • Hi

    Here you can read more about failover,

    http://www.microsoft.com/download/en/details.aspx?id=11247


    Renato Kurti CCNA,CCNP Security,CCAI,MCP,MCTS,MCITP:EA,MCT

    16 Maret 2012 8:29
  • Following are the basic requirements for 2 node fail over cluster setup:

    • Shared storage (could be iSCSI or FC SAN etc...)
    • Application which you would install on cluster should be "Cluster Aware
    • Adequate NICs on each nodes; (min 2, could be more depending on the need) 1 NIC for Heartbeat and other one for normal cluster communication.
    • Active Directory
    • Adequate free static IP addresses which would be used in cluster setup. Min 5 static IP addresses 2 IPs for Heart beat, 2 IPs for cluster communication, 1 IP for Cluster.
    • Domain Service Account (Account should not expire) which would be used for cluster configuration.

    In addition to above suggestion, pls refer following for detailed information...

    Windows Server 2008 Clustering Documents, Whitepapers, Webcasts, Groups 

    http://blogs.msdn.com/b/clustering/archive/2008/05/10/8483427.aspx

    Windows Server 2008 Step-by-Step Guides 

    http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=17157 

    Utilizing SAN Storage with Windows Failover Clusters 

    http://www.petri.co.il/2008-failover-clustering-and-san.htm 

    Hope that helps !


    This posting is provided "AS IS" with no warranties or guarantees and confers no rights.

    Most of the downtime's are caused because of SysAdmin's curiosity ! - Santosh

    16 Maret 2012 9:17
  • Hi Santosh

    can we implement failover clustering using RAID-5

    (all the servers and the clients are located in one small building)

    16 Maret 2012 11:32
  • Hello SHMR_tkm,

    If you are building a cluster between two physical servers, here is what you can do.

    On each node, install OS on RAID 1 (Mirrored Disks) and data can be on RAID5 (3 or More Disks). 

    Having said that, cluster requires shared disks i.e. at least one for Quorum. Quorum disk needs to be mapped on both the nodes. 

    If you would like to have shared disks for data as well, then you should have shared storage ( SAN ).

    At SAN storage level, disks can be configured in RIAD5 or any desired RAID levels.


    This posting is provided "AS IS" with no warranties or guarantees and confers no rights.

    Most of the downtime's are caused because of SysAdmin's curiosity ! - Santosh

    16 Maret 2012 11:51
  • Please spin up a few VMs in a test environment and use Microsoft iSCSI to familiarize with Clustering before moving to production.

    Microsoft iSCSI Software Target 3.3

    http://www.microsoft.com/download/en/details.aspx?id=19867


    Dave Guenthner [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights. http://blogs.technet.com/b/davguents_blog

    16 Maret 2012 13:14
  • Agree with Dave.

    You can setup a lab environment with Virtual PC or Virtual Box or VMware work station. 

    To start with, I would suggest you to go through following...

    How To Build a Windows Cluster with Virtual PC and iSCSI - Part I 

    http://www.iisadmin.co.uk/?p=91 

    How To Build a Windows Cluster with Virtual PC and iSCSI - Part II 

    http://www.iisadmin.co.uk/?p=215 

    How To Build a Windows Cluster with Virtual PC and iSCSI - Part III

    http://www.iisadmin.co.uk/?p=268

    Setup Microsoft Windows 2008 R2 Failover Cluster in VMware Workstation 

    http://www.sysprobs.com/setup-windows-2008-cluster-vmware-workstation

    Failover Cluster Step-by-Step Guide: Configuring a Two-Node File Server Failover Cluster 

    http://technet.microsoft.com/en-us/library/cc731844(WS.10).aspx 


    This posting is provided "AS IS" with no warranties or guarantees and confers no rights.

    Most of the downtime's are caused because of SysAdmin's curiosity ! - Santosh

    16 Maret 2012 13:40
  • Hi Santosh and Dave ,

    is it possible implement Failover clustering without shared storage?

    if it possible how i can do that?

    I hope both of you help me with right answer.

    pls reply with brief steps by step prcdr...


    • Diedit oleh SHMR_tkm 17 Maret 2012 5:04
    17 Maret 2012 4:53
  • << is it possible implement Failover clustering without shared storage?>>

    AFAIK, Answer is NO.

    If you would not want to go with dedicated Shared storage solution you might want to try applications like Starwind iSCSI SAN which allows you to convert Windows Server into scalable SAN. 

    http://www.starwindsoftware.com/starwind-iscsi-san-overview 

    Or another free and great product would be Openfiler

    http://www.openfiler.com/                                              

    Refer following threads for more details

    Windows 2008 R2 Clustering without shared storage???

    http://social.technet.microsoft.com/Forums/en-US/winserverClustering/thread/8e04f640-9010-4ec3-8c32-4d6588460050/#dd2efea9-c8f8-4fc5-a912-837e20a7b7cb

    file server clustering without shared storage

    http://social.technet.microsoft.com/Forums/en-US/winserverClustering/thread/be6408a8-6488-4087-9dc7-51d88c0f128d

    Clustering with internal storage?

    http://social.technet.microsoft.com/Forums/en-ZA/winserverClustering/thread/e83837b8-4635-4f39-9c3d-c746c4785f00





    This posting is provided "AS IS" with no warranties or guarantees and confers no rights.

    Most of the downtime's are caused because of SysAdmin's curiosity ! - Santosh

    • Disarankan sebagai Jawaban oleh VR38DETTMVP 17 Maret 2012 16:23
    17 Maret 2012 6:30
  • is it possible implement Failover clustering without shared storage?

    Technically yes.  i.e. Exchange CCR clusters do not have shared storage but likely that is not your goal. 

    if it possible how i can do that?

    Already provided this answer, use free iSCSI target and test with virtual machines.  Santosh has already provided the links.


    Dave Guenthner [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights. http://blogs.technet.com/b/davguents_blog

    17 Maret 2012 12:35
  • Hi Santosh and Dave ,

    is it possible implement Failover clustering without shared storage?

    if it possible how i can do that?

    I hope both of you help me with right answer.

    pls reply with brief steps by step prcdr...


    Yes of course! There is bunch of products allowing you to provide shared storage to your cluster without need of external SAN (FC, iSCSI or whatever). Give a try to StarWind iSCSI SAN and DataCore SANsymphony-V. Both can run natively on Windows and convert existing DAS to mirrored (HA) iSCSI SAN. As a result you'll end with only TWO machines and everything will run fully redundant. Hope this helped :)

    That's how it should look (picture is for Hyper-V but for your case it's the same):

    http://www.starwindsoftware.com/images/pages/nativesan/img77.png

    -nismo


    • Diedit oleh VR38DETTMVP 17 Maret 2012 16:22 Picture added.
    17 Maret 2012 16:16
  • Hi Santosh

    can we implement failover clustering using RAID-5

    (all the servers and the clients are located in one small building)

    Yes of course! Both products I've referenced can convert RAID5 DAS to RAID1-over-RAID5 SAN you'll feed to your cluster. You'd better however get rid of RAID5 and replace it with RAID10 if possible. Take a look at this one: 

    http://www.miracleas.com/BAARF/RAID5_versus_RAID10.txt

    Hope this helped :)

    -nismo

    17 Maret 2012 16:20
  • << is it possible implement Failover clustering without shared storage?>>

    AFAIK, Answer is NO.

    If you would not want to go with dedicated Shared storage solution you might want to try applications like Starwind iSCSI SAN which allows you to convert Windows Server into scalable SAN. 

    http://www.starwindsoftware.com/starwind-iscsi-san-overview 

    Or another free and great product would be Openfiler

    http://www.openfiler.com/                                              

    Refer following threads for more details

    Windows 2008 R2 Clustering without shared storage???

    http://social.technet.microsoft.com/Forums/en-US/winserverClustering/thread/8e04f640-9010-4ec3-8c32-4d6588460050/#dd2efea9-c8f8-4fc5-a912-837e20a7b7cb

    file server clustering without shared storage

    http://social.technet.microsoft.com/Forums/en-US/winserverClustering/thread/be6408a8-6488-4087-9dc7-51d88c0f128d

    Clustering with internal storage?

    http://social.technet.microsoft.com/Forums/en-ZA/winserverClustering/thread/e83837b8-4635-4f39-9c3d-c746c4785f00





    This posting is provided "AS IS" with no warranties or guarantees and confers no rights.

    Most of the downtime's are caused because of SysAdmin's curiosity ! - Santosh

    Santosh! You're a man :) Couple of remarks...

    Biggest difference between referenced MS iSCSI target/Openfiler and StarWind/DataCore approach is 1) you don't waste a dedicated machine acting as a SAN. Openfiler and MS target will cost you at least one extra node (and add here some infrastructure expenses as well) 2) With StarWind/DataCore you're running redundant config with only two machines acting as a cluster nodes themselves. With MS iSCSI target/Openfiler you're representing SPOF (single point of failure) to your cluster. Something being unacceptabe for production. IMHO.

    -nismo

    P.S. There are other software packages emulating shared storage but these ones are doing iSCSI SAN and not emulating block device or mirror VHD files (thus being Hyper-V only).

    17 Maret 2012 16:28

  • Santosh! You're a man :) Couple of remarks...

    Biggest difference between referenced MS iSCSI target/Openfiler and StarWind/DataCore approach is 1) you don't waste a dedicated machine acting as a SAN. Openfiler and MS target will cost you at least one extra node (and add here some infrastructure expenses as well) 2) With StarWind/DataCore you're running redundant config with only two machines acting as a cluster nodes themselves. With MS iSCSI target/Openfiler you're representing SPOF (single point of failure) to your cluster. Something being unacceptabe for production. IMHO.

    -nismo

    P.S. There are other software packages emulating shared storage but these ones are doing iSCSI SAN and not emulating block device or mirror VHD files (thus being Hyper-V only).

    Agree with you Nismo :)

    This posting is provided "AS IS" with no warranties or guarantees and confers no rights.

    Most of the downtime's are caused because of SysAdmin's curiosity ! - Santosh

    17 Maret 2012 18:42
  • Hi Santhosh,vr38dett,Dave

    Thanks for all...

    There is a small change in  my project.

    I Have an IBM   6 core server with 4 sata hdd and 16 GB of memory and another server with 4 sata hdd  (less in size than first one).I have to install an application software in the first server.(AD , DHCP,DNS is also in installed in this server with more than 250 clients) .if this server is going down  Server 2 take in action by providing all the above services with failover clustering.

    how i can configure this . Failover clustering is more important to me.

    pls give me brief step by step procedure.

     I hope all of u get me?

    19 Maret 2012 4:51
  • Hi Santhosh,vr38dett,Dave

    Thanks for all...

    There is a small change in  my project.

    I Have an IBM   6 core server with 4 sata hdd and 16 GB of memory and another server with 4 sata hdd  (less in size than first one).I have to install an application software in the first server.(AD , DHCP,DNS is also in installed in this server with more than 250 clients) .if this server is going down  Server 2 take in action by providing all the above services with failover clustering.

    how i can configure this . Failover clustering is more important to me.

    pls give me brief step by step procedure.

     I hope all of u get me?

    All right,Things are bit clear now :)

    Active directory cannot be clustered!

    However, you can have redundancy by setting up additional domain controllers.

    Please refer following for more details.

    Installing an Additional Domain Controller by Using the Graphical User Interface (GUI)

    http://technet.microsoft.com/en-us/library/cc753720(v=WS.10).aspx 

    AD DS Installation and Removal Step-by-Step Guide 

    http://technet.microsoft.com/en-us/library/cc755258(v=WS.10).aspx

    DHCP Best Practices 

     

    http://technet.microsoft.com/en-us/library/cc780311%28WS.10%29.aspx 

     

    Configuring scopes


    http://technet.microsoft.com/en-us/library/cc739076%28WS.10%29.aspx 

     

    How DNS Support for Active Directory Works

    http://technet.microsoft.com/en-us/library/cc759550(v=ws.10).aspx 

    Learn how to deploy Windows Server 2003 DNS server service in a small (single-domain) network. 

    http://www.microsoft.com/download/en/details.aspx?id=8660

    If you have further questions, please feel free to post them here.

    This posting is provided "AS IS" with no warranties or guarantees and confers no rights.

    Most of the downtime's are caused because of SysAdmin's curiosity ! - Santosh

    • Ditandai sebagai Jawaban oleh SHMR_tkm 20 Maret 2012 4:42
    19 Maret 2012 5:45
  • Hi Santosh,

    Iam fully cnfdnt about the AD and additional AD ,dns and dhcp .The problem is with the failover clustering .

    I didnt get the appropriate way to fulfill the needs using NAS.

    pls give me what is the rqrmnts  and step by step description  about configuring failover clustering.


    • Diedit oleh SHMR_tkm 20 Maret 2012 4:54
    20 Maret 2012 4:47
  • Hi Santosh,

    Iam fully cnfdnt about the AD and additional AD ,dns and dhcp .The problem is with the failover clustering .

    I didnt get the appropriate way to fulfill the needs using NAS.

    pls give me what is the rqrmnts  and step by step description  about configuring failover clustering.


    Though a domain controller isn't cluster aware however, you can have cluster nodes as domain controllers. In fact, such situations are very rare to find !

    Please refer following article for more details

    Windows 2000, Windows Server 2003, and Windows Server 2008 cluster nodes as domain controllers 

    http://support.microsoft.com/?ID=KB;EN-US;Q281662 

    Hope this is what you are looking for :)


    This posting is provided "AS IS" with no warranties or guarantees and confers no rights.

    Most of the downtime's are caused because of SysAdmin's curiosity ! - Santosh

    20 Maret 2012 5:01