SCAN in a 4-node Cluster

Similar Questions

• We have SQL Server 2005 cluster (3 node cluster), and if we improve this nodes to 2008 R2, the databases associated with the named instance can stay to the version of SQL Server 2005?

  original title: SQL Server 2008

  We have SQL Server 2005 cluster (3 node cluster) and if we improve this nodes to 2008 R2, can the databases associated with the named instance remain to the version of SQL Server 2005, I seem to disagree with this notion, but still need to validation of the pro.

  One way I can think of to achieve this scenario changes the compatibility level to SQL Server 2005 when the node has been upgraded to SQL Server 2008, so we can upgrade databases to SQL 2008 as and when the vendors provide support for this version.

  Hello

  Here is the Vista forums

  Try the links below:

  SQL Server forums

  http://social.technet.Microsoft.com/forums/en-us/category/SQLServer/

  SQL Server TechCenter

  http://TechNet.Microsoft.com/en-us/SQLServer/bb265254.aspx

  Blogs and Forums SQL server 2008

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• 3-node cluster beta - high CPU usage - Loginsight 2.0

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• 11g Question: Stand alone database vs single node cluster

  We are about to create a new 11.2.0.3 database that will eventually become a 11.2.0.3 in cluster database. Our host servers are hardware IBM pSeries AIX 6.1 running. We will use just Oracle Clusterware and not IBM HACMP. We also plan to use ASM for database storage. The plan is ultimately to have a 2 or a 3-node cluster, but currently, we have only an AIX server available to us.
  
  My question concerns our initial approach to the installation.
  
  It is preferable to install the Oracle database as a stand-alone database first and then convert the database to a RAC cluster as soon as we have the material for the second node? Or would it be better to create the cluster with a single node and install and configure grid Clusterware for a single node cluster and then add the second node when the material becomes available?
  
  I apologize if my explanation is not very clear. Any notice will be considered and appreciated. Thank you.

  Hello

  We are about to create a new 11.2.0.3 database that will eventually become a 11.2.0.3 in cluster database. Our host servers are hardware IBM pSeries AIX 6.1 running. We will use just Oracle Clusterware and not IBM HACMP. We also plan to use ASM for database storage. The plan is ultimately to have a 2 or a 3-node cluster, but currently, we have only an AIX server available to us.

  My question concerns our initial approach to the installation.

  It is preferable to install the Oracle database as a stand-alone database first and then convert the database to a RAC cluster as soon as we have the material for the second node? Or would it be better to create the cluster with a single node and install and configure grid Clusterware for a single node cluster and then add the second node when the material becomes available?

  If you are planning to ACTIVE/PASSIVE here database my option:
  {message: id = 10138477}

  If you are planning in the future use a RAC database:
  {message: id = 10142640}

  If you plan use CARS in the future, you can install Oracle Clusterware without worry about licenses.
  Oracle Clusterware can serve to protect any application (reboot or otherwise on the application failure), free of charge, if one or more of the following conditions are met:
  

• At least one of the servers in the cluster is allowed for the Oracle database (SE or EE)
  http://docs.Oracle.com/CD/E11882_01/license.112/e10594/editions.htm#CJAHFHBJ

  If you ARE database Oracle or EA (i.e., not one SE), you can install the product Oracle Clusterware and Oracle RAC (EE to buy the RAC Option) in a node later you can stretch clusterware adding additional nodes, and more database instance.

  You do not need to create a RAC database, you can create a single database (i.e. Non-RAC) on OH software Oracle RAC using DBCA.

  Although I prefer that you create a database of CAR Policy-Managed database... which makes the dynamics and the automatic (i.e. managed by Clusterware) creation/deletion of instances. You will use a POOL with a knot... later you can add more nodes in that POOL... Oracle Clusterware/PAP automatically create undo/redo/instances on the new nodes added to this POOL.
  All this is transparent to your customers of Oracle.

  Oracle Grid Infrastructure for a stand-alone server (Oracle Restart) is an option only if you plan used to one node. If you are using more than one node... Start with Oracle Grid Infrastructure for a Cluster (Oracle Clusterware).

  Hope this helps,
  Levi Pereira

  Published by: Levi Pereira on March 12, 2012 13:58

• Replication Failover clustering & Hyper-v on a two-node cluster

  Hello

  We have two identical servers.  One to use as a main server, which houses two virtual machines.  The other should be used as a back up in case the main server is not somehow.  We planned on using a solution of third-party software to back up our virtual machines and launch them in the event of failure of the principal server.  However, we discovered just gave the failover clustering in Windows Server R2 2012.

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  I wonder if that's okay?  In other words, a two-node failover cluster requires separate network storage space.  If this is not correct, can someone point me to a set of instructions to correctly configure a two-node failover cluster that will automatically launch the virtual machines on the server backup (in the case of a failure of the principal server).

  Thank you

  Mike Goldweber

  Hello

  Post your question in the TechNet Server Forums, as your question kindly is beyond the scope of these Forums.

  http://social.technet.Microsoft.com/forums/WindowsServer/en-us/home?category=WindowsServer

  See you soon.

• ASM disk added without scan on the second node

  Hi all

  Oracle Version: 11.2.0.3

  I need a help for a problem with the addition of ASM disks.

  It is a node two CARS and a disk group was filled.

  A drive was available as UNUSED001 and so we renamed it ran scan disk and disk added to the diskgroup on node1.

  But, as we have not run scan disk on the second node, the name is still the poster as UNUSED001 and assigned to diskgroup showing as a MEMBER.

  In addition, the renamed disk shows as a MEMBER but not attributed with any diskgroup.

  Usually, when this heppens we have to restart the node to solve the problem, but would like to get idea if this can be fixed without bouncing nodes.

  I restarted node and that fixed the issue.

  Closing this thread.

  Thank you guys.

• use of the high memory in the database of node cluster 2

  Summary of environmental

  Cluster nodes RHEL6.4/11.2.0.3.0/ASM/2

  free m

  total used free shared buffers cached

  MEM: 32096 31723 372 0 238 16277

  -/ + buffers/cache: 15206 16889

  Swap: 16383 178 16205

  Each s 1.0: ps EI o % mem, % cpu, cmd | sort - n - r k 2 | head - 10 Thu Feb 27 16:32:15 2014

  4.8 0.2 /u01/app/11.2.0/grid/bin/osysmond.bin

  mem % 0.0 4.0 ps EI - o, % cpu, cmd

  ora_lms1_orcl2 19.6 1.3

  ora_lms0_orcl2 19.6 1.3

  /etc/kannel.conf 0.2 0.9/usr/sbin/bearerbox

  asm_vktm_ 0.9 0.0 + ASM2

  ora_vktm_orcl2 0.8 0.0

  /opt/app/Java/JDK1.6.0_12/JRE/bin/Java 7.7 0, 7-server-Xms8192m-Xmx8192m - XX: MaxPermSize = 256 m - XX: NewSize = 2048M - XX: karine

  2.5 0.7 /opt/app/java/jdk1.6.0_12/bin/java-Djava.util.logging.config.file=/opt/app/csdtomcat/apache-tomcat-6.0.35/c

  /U01/app/11.2.0/grid/bin/ocssd.bin 0.3 0.7

  SQL > select value, name from v$ sysstat whose name like '% gc.

  THE VALUE NAME

  ---------- ----------------------------------------------------------------

  398431945 gcs sent messages

  24465773 gc cr block served

  92438 flush time gc cr block

  52157 timeout reading gc

  100272 expected read gc

  failures of reading waiting 0 gc

  15 gc waiting read timeouts

  77789637 blocks of courses gc served

  826771 gc block pine time

  130755 block course gc flush times

  51119356 blocks of cr gc has received

  5027865 gc cr block receive times

  61272732 blocks of course gc has received

  4268980 block of course gc receive times

  181763086 local grants of gc

  56125079 grants remote gc

  716839431 gc sent kilobytes

  101203847 gc saved KB

  30105492 compressed blocks of gc

  blocks of gc lost 0

  blocks of claims gc lost 0

  0 gc corrupt blocks

  0 gc CPU used by this session

  0 player gc bypass grants

  time of generation 0 gc cr block

  0 gc cr block send time

  current block 0 gc send times

  Node-1

  Each s 1.0: ps EI o % mem, % cpu, cmd | sort - n - r k 2 | head Thu Feb 27 - 10 17:19:47 2014

  16.3 51.7 /opt/netvertexp/java/jdk1.6.0_12/jre/bin/java-serveur-Xms8192m-Xmx8192m - XX: MaxPermSize = 256 m - XX: NewSize = 2048M - XX: karine

  6.5 0.2 /u01/app/11.2.0/grid/bin/osysmond.bin

  0.0% mem 5.0 ps EI - o, % cpu, cmd

  2.2 0.0/usr/sbin/tcpdump bond0 w s port 65535 /root/pcapprimary/netvertexp-27Feb_17_15.pcap 3868-i

  /U01/app/11.2.0/grid/bin/ocssd.bin 0.4 1.4

  19.5 1.2 ora_lms1_orcl1

  19.5 1.2 ora_lms0_orcl1

  ora_dbw1_orcl1 19.7 0.9

  ora_dbw0_orcl1 19.7 0.9

  ora_vktm_orcl1 0.9 0.0

  Node-2

  Each s 1.0: ps EI o % mem, % cpu, cmd | sort - n - r k 2 | head Thu Feb 27 - 10 17:19:07 2014

  4.8 0.2 /u01/app/11.2.0/grid/bin/osysmond.bin

  mem % 0.0 3.0 ps EI - o, % cpu, cmd

  oracleorcl2 0.1 2.5 (LOCAL = NO)

  ora_lms1_orcl2 19.6 1.3

  ora_lms0_orcl2 19.6 1.3

  /etc/kannel.conf 0.2 0.9/usr/sbin/bearerbox

  asm_vktm_ 0.9 0.0 + ASM2

  ora_vktm_orcl2 0.8 0.0

  /opt/app/Java/JDK1.6.0_12/JRE/bin/Java 7.7 0, 7-server-Xms8192m-Xmx8192m - XX: MaxPermSize = 256 m - XX: NewSize = 2048M - XX: karine

  2.5 0.7 /opt/app/java/jdk1.6.0_12/bin/java-Djava.util.logging.config.file=/opt/app/csdtomcat/apache-tomcat-6.0.35/c

  How to troubleshoot the depth to find the cause of the heavy memory usage. ?

  Thank you

  hitgon

  Hello

  vmstat-s

  This will give a more detailed overview. Search for active/inactive values and used swap. If active memory is close to the total memory and you have a larger amount of used swap, then you might have the memory pressure.

  If the Exchange is not used much, and you have the right percentage of inactive memory, then linux could easily swap memory without a performance problem. In this case, the pressure of memory is very likely.

  For a report very detailed on the use of single process

  PMAP pid - x

  M and the press allows you to sort by memory use. If you are using pmap on bigest processes, then you should have a good starting point was that your memory has disappeared.

  Concerning

  Thomas

• HA 2 node cluster

  Dear all,

  We must give the solution for our customer with a high availability 10VMs. is the main requirement. We cluster vmware design two nodes. recommended cluster with 2 design nodes? Please advice...

  Thank you

  Lasantha.

  I build multiple clusters of 2 knots in the past with no problems. Note that when you perform an upgrade to ESXi you'll turn temporarily without protection for your virtual machines... Because if you do an upgrade this host will probably be in maintenance mode and will not be used as a target for failover. This is why many people are recommended to go with 3 being the minimum. However, two works very well.

• Tip 3 - ESX4 running unusual performance of Hung VM - node cluster...

  Hello community,

  I use useful overview to a question we've experienced in our production environment on a cluster of 3 nodes that had a virtual computer running on it.  The virtual machine is used only for printing isolate us applications running together on similar servers.  The technician who was working the issue being reported a number of things, but I wasn't there so couldn't say what has been done.  The end result was that he had to perform a "reset" of the virtual machine, because it could not connect via RDP and the console does not accept the CtrlaltDELETE.  VMware tools is updated. It will be later tonight so I'll tell you about him for more details on the issue and what diagnosis was made.  The problem occurred this morning to 01:30-02:30 am on the 'C' host (host are 1 a, 1 b, 1 c).  Seeing as just two days ago, I reached my VCP, I thought I'd like to look deeper into the problem.  What I found was a bit intriguing.  There is no change somehow to the recenetly cluster other than adding some VM makes.  At the time of the issue, that nothing has been performed we could very well connected in vCenter.  I also logged on to the console and found it EXTREMELY laggy.  This is partly due to the fact that we use vCenter here in our home office and all Distribution Centers to meet the vCenter here so I don't know that it's because of WAN.  Anyway, finding that he was still on which I just decide to look at some statistics and performance counters in vCenter.  What I've discovered, is that between the time where the problem occurred in fact there is a pretty big spike in all activities related to the disk, memory, network, and CPU.  See the attached images.  I thought it was very interesting, and anyone could build a helping hand in perhaps seeing what may of caused this type of spike in any army of this group which would be very useful.  All virtual machines are supplied with 1vcpu and only 4 GB of memory.  We use the Solutions of HP Lefthand VSA for shared iSCSI storage.  Appreciate any comments!

  Given, you have iSCSI storage connected to the ESX servers, it is normal to have spikes on the CPU, disk and network if you use normal NIC (not iSCSI HBAS). When ESX disks on storage iSCSI via NETWORK card normal access, it access to content on the network and uses the CPU to process the iSCSI packages. If you have iSCSI HBA, you shouldn't see peaks of the use of the processor like this.

• Three-node cluster lose two hosts

  In a knot three cluster is it possible to lose two hosts and keep all three data warehouses are still online?

  lol if you lose two guests you don't have redundancy and disconnected data warehouses

• Three listeners SCAN on 11 GR 2 2 node RAC

  Hello
  
  One of my colleagues has set up 11 GR 2 2 RAC nodes. I had the chance to explore a little. I noticed that there are a total of three Auditors SCAN. On the three SCAN2 is on a node and SCAN1 and SCAN3 are on the other node.
  
  I've collapsed SCAN (using srvctl) listeners and then started them. I found them running the same nodes as they were before. It seems that the clusterware somehow keeps track of which SCAN listener is running on the node.
  
  I have a few questions about the listener to SCAN:
  
  Q1: how Oracle/Clusterware decided to launch the SCAN listeners in this configuration (SCAN2 on a node) and SCAN1/3 on the other.
  Q2: whence the clusterware stores this information?
  Q3: what happens if it is a four-node cluster? We need to have the SCAN mapped to four-IPs (so that each node has its own listener SCAN)?
  Q4: what is the role of the standard earpiece AMT usual in this environment of RAC 11 GR 2 (I think it's the SWEEPING listener that listens to requests for connection to the customer, right?). Is this redundant ?
  Q5: is it correct to assume that 'clusterware somehow followed of which SCAN Listener runs on which node.'?
  
  Concerning

  user12033597 wrote:
  Thank you very much for the answer - the DOC of MOS also helped a lot.

  Another question:

  How would the listeners SCAN be configured to run on a cluster of 11 GR 2 nodes 4 - or more? I mean, since the SCAn can solve up to max 3 IPs and you can only max 3-SCAN listeners, how they would be split? I think that SCAN1 cannot run on more than one node. So I think that only three knots in a 4 - node cluster or more will have listeners SCAN running. But what of the rest nodes?

  Thanks again!

  Three IP addresses are recommended in view of the requirements of load balancing and high availability regardless of the number of servers in the cluster.
  And if you have more than 4 nodes to the cluster decides on what scan node listenr must operate. When you restart the node, cluster is failover scan listener to another resource (all) node available to support the scan feature. For example, you can end up with more cars to 5-node cluster configuration when any node restarts.

  Node1 - SCAN 1 earpiece
  Listener Node2-No Scan
  Node3 - listener SCAN 2
  Node4 - no listener SCAN
  Node5 - SCAN earphone 3

  I hope that its clear to you

• Scan IP is configured only in a single node

  Hello

  I configure Oracle 11 GR 2 (11.2.0.1) RAC in my VMware. When I checked the listener to ip and CT scan it shows that it is only set in 2nd node to the first node. The nslookup command works fine as indicated below, and when I checked the srvctl status scan_listener and scan of srvctl status it shows that it is running only in the second node. I checked in a few places where the srvctl status scan_listener and scan srvctl status command shows output of all nodes. Can anyone help me on what could be the problem or how to configure the ip address scan and scan listener in 1 node.

  *********************

  file/etc/hosts

  *********************

  # Do not remove the next line, or various programs

  # requiring a network functionality will fail.

  127.0.0.1 localhost.localdomain localhost

  #: 1 localhost6.localdomain6 localhost6

  #public

  192.168.32.142 brand mark.oracle.com

  192.168.32.152 nike.oracle.com nike

  #private

  10.0.0.56 brand brand - prv.oracle.com - prv

  10.0.0.57 prv.oracle.com nike nike-prv

  #vip

  192.168.32.20 brand brand - vip.oracle.com - vip

  192.168.32.21 vip.oracle.com nike nike-vip

  #scan

  192.168.32.153 db1 - scan.oracle.com db1-scan

  192.168.32.154 db1 - scan.oracle.com db1-scan

  192.168.32.155 db1 - scan.oracle.com db1-scan

  ****************************************

  srvctl command output

  ***************************************

  [oracle@nike bin] $. / srvctl status scan_listener

  LISTENER_SCAN1 listener to SCAN is enabled

  SCAN LISTENER_SCAN1 listener is running on the node nike

  [oracle@nike bin] $. / srvctl scan status

  VIP scan1 SCAN is enabled

  VIP SCAN scan1 runs on the nike node

  ***********************************

  NS lookup command output

  ***********************************

  [oracle@mark bin] $ nslookup db1-scan

  Server: 192.168.32.142

  Address: 192.168.32.142 #53

  Name: db1-scan

  Address: 192.168.32.155

  Name: db1-scan

  Address: 192.168.32.153

  Name: db1-scan

  Address: 192.168.32.154

  [oracle@mark bin] $

  [oracle@mark bin] $

  [oracle@mark bin] $ nslookup db1-scan

  Server: 192.168.32.142

  Address: 192.168.32.142 #53

  Name: db1-scan

  Address: 192.168.32.153

  Name: db1-scan

  Address: 192.168.32.154

  Name: db1-scan

  Address: 192.168.32.155

  [oracle@mark bin] $

  [oracle@mark bin] $ nslookup db1-scan

  Server: 192.168.32.142

  Address: 192.168.32.142 #53

  Name: db1-scan

  Address: 192.168.32.154

  Name: db1-scan

  Address: 192.168.32.155

  Name: db1-scan

  Address: 192.168.32.153

  ****************************************************************************************

  Kind regards

  007

  Hello

  This is the behavior expected if you use the file/etc/hosts instead of DNS/GNS. It is documented on the note ' RAC: frequently asked Questions (Doc ID 220970.1).

  If you want to have more than one listener to scan, and then start using DNS for name of scanning resolution.

  Kind regards.

  Nelson

• How failover VIP SCAN and SCAN one node to another listener?

  Environment:

  OS: HP - UX B.11.31 U ia64

  RDBMS: Oracle Database 11 g Enterprise Edition Release 11.2.0.3.0 - 64 bit Production

  It is a 2 RAC node.

  Question:

  1. How tipping the VIP SCAN and SCAN LISTENER running on node 1 to node 2?
  2. What is the relationship between AUDITOR and AUDITOR SCAN standard?
  3. Why must we LISTENER, when we SCAN LISTENER?
  4. When I tried with LISTENER to STOP SRCVTL , I thought the LISTENER to SCAN and SCAN IP are switched, but there no?
  5. Also, please clarify if I'm using SRVCTL INDIA SCAN Node1-i 1-n
     Actalluy I am that by moving the SCAN listeners so that when I do the correction of DIET 7 block on node 1, no incoming connection attempt to clear
     a process and thus to open files in $ORACLE_HOME (which would prevent the patch does not happen)

  Please clarify my queries.

  Thanks, Sivaprasad.S

  Your questions:

  1. the failover occurs after a failure, you can't do it manually. Restart a node and you will see it happen.

  2 SCAN redirect listeners to the listeners of node connection requests.

  3. they have different functions. SCAN of listeners redirection, listeners node spawn and leave sessions.

  4 srvctl stop listener has no effect on a listener SCAN or SCAN VIP.

  5. the instructions with the game patches don't tell you to do.

• Cluster of P2V existing Windows 2003 two nodes exchange 2007

  Hello

  I want to know how I can create a cluster of the P2v of my production windows node cluster on a host two unique esx4i. It is only for purposes of laboratory and test. The reason why I've done a P2v is I want to imitate my production environment, and as production data.

  I've done a p2v of my node Exchange 2007 cluster two production Windows 2003 64-bit.  How can I reconfigure disks (quorum, data) for the cluster?

  I've seen a lot of e of documents telling me to remove the discs and re create, but I want to keep the data.

  I would like to know if someone has done with success the P2v cluster.

  Please notify.

  I understand you want to keep the data - this guide will give you necessary for nodes in vm configurations and storage relavent - if you want to keep the two nodes in the cluster on separate from ESX boxes, then you will need to maintain a quorum and the shared data on the physical SAN LUNS and allows to connect to storage RDM - if they all exist on the same ESX Server I shute evrything down - P@V primary node with the disk data and shared quorum, then P2V system disk of secondary nodes - in both cases follow the configurations described in the guides and you should be good to go-

  If you find this or any other answer useful please consider awarding points marking the answer correct or useful

• P2V one resource to Cluster MS and not to the cluster nodes

  Hello!

  We are looking to do a P2V on our file servers, which are all 2 node A / P SAN connected MS Cluster. I see articles where people work to convert the cluster nodes themselves and then have the MS Cluster running on ESX - this isn't what I want to do.

  I've not seen any (covered by a research brief) mention of any attempt to make a virtual server Cluster MS. P2V conversion Looks like it is the best deal if it worked.

  So I FS1 as the virtual resource with N1 and N2 as nodes.  Can I run a P2V of FS1 crowd for a disk system to capture all the action, then just RDM the SAN LUNS to the VM FS1 newly created? Or am I stuck with the creation of a third node, clustered, expelling the original, closing nodes cluster services and then rename or uses DNS to point to the FULL FS1 domain name?

  Thank you!

  I know that sounds a good idea but any time
  I tried P2V ING I ended up regretting the MSCS clusters. For the file
  & Print sharing there is some direct negative side effects but for
  The SQL cluster, it is very messy. You can not P2V the virtual server name
  (FS1) directly, you must break the cluster and migrate the
  individual nodes. But as I said it's a bad idea in any case.

  If these are just some cluster file server then the easiest thing to do
  is just export actions (they are just a registry key), build a new
  clean the VM, attach the existing data as a RDM disk and import the
  registry keys. Once your happy that it work, rename the machine as
  the former name of virtual node.

  http://ServerFault.com/questions/102271/P2V-a-MS-cluster-resource-and-not-the-cluster-nodesvmware

  StarWind software developer

  www.starwindsoftware.com