How to failover SCAN VIP and SCAN Listener from one node to another?

Environment:
O.S :          HP-UX  B.11.31 U ia64
RDBMS:   Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
It is a 2 Node RAC.
Question:
How to failover the SCAN VIP and SCAN LISTENER running on node 1 to node 2?
What is the relation between standard LISTENER and SCAN LISTENER ?
Why do we need LISTENER, when we have SCAN LISTENER ?
When I tried with SRCVTL STOP LISTENER , I thought the SCAN LISTENER adn SCAN IP will failover, but it did not?
Also please clarify if I use SRVCTL RELOCATE SCAN -i 1 -n Node1
Actalluy I am trying that by moving the SCAN listeners so that when I do PSU 7 patching on 1 node, no incoming attempt to connect will spawn
a process and thereby opening files in $ORACLE_HOME (which would prevent the patch from occurring)
Please clarify my queries.
Thanks,  Sivaprasad.S

Hi Sivaprasad,
1. The following link will help you for SCAN VIP and SCAN LISTENER failover from 1 node to another.
http://heliosguneserol.wordpress.com/2012/10/19/how-to-relocate-scan_listener-from-one-node-to-another-node-on-rac-system/
http://oracledbabay.blogspot.co.uk/2013/05/steps-to-change-scan-ip-address-in.html
2. The Standard LISTENER is specific for particular node for which it is running. It cannot be relocated as its specific for the node its running. SCAN listeners are not replacements for the node listeners.A new set of cluster processes called scan listeners will run on three nodes in a cluster (or all nodes if there are less than 3).  If you have more than three nodes, regardless of the number of nodes you have, there will be at most three scan listeners. So no relation for standard LISTENER and SCAN LISTENER.
3. Hmmm. let me put it in easy way for this question. All the RAC services like, asm, db , services, nodeapps registers with this SCAN_LISTENER. So if any of these services (asm, db , services, nodeapps) got down/not running, the SCAN_LISTENER will know the down status, and if any client requests to access the node/service which is down, the SCAN_LISTENER will redirect the client request to the least loaded node. So here all these process will happen without the knowledge of client. And As usual the standard LISTENER looks only for incoming request to connect with the database. So we need both LISTENER and SCAN LISTENER.
4. If you provide SRCVTL STOP LISTENER,  it stops the default listener on the specified node_name, or the listeners represented in a given list of listener names, that are registered with Oracle Clusterware on the given node. No failover will happen under this case.
5. Yes you can relocate if you want to relocate the scan.
Hope this helps!!
Regards,
Pradeep. V

Similar Messages

  • HT204023 What is 'sim pin' under Cellular data on my iPad mini?  How do I use that and change cards from one country to another?

    I have a new ipad mini with retina display, and cellular capability.
    I've learned how to set up an account and use it in the US.  I'm now traveling internationally and need to learn about changing the sim card.
    My first question is about the notation under 'settings', Cellular Data, SIM PIN.  Under SIM PIN, there is an option of turning on 'sim pin' and then entering a PIN to lock the SIM.
    What does SIM PIN mean in the first place?
    Where does the PIN number come from?
    Thankx.
    SusanFrances

    A SIM PIN, also referred to sometimes as a PUK Code is like a PIN number for your SIM card (just like your ATM Card).  Since your SIM card has your cellular account on it and can be typically removed from one device and put into another, you can lock the SIM Card with a SIM PIN if you choose.  If you activate the SIM PIN feature and forget your SIM PIN when you try to re-activate your device or a new device in the future using the same SIM Card, you may have to contact you carrier to get a new SIM Card. http://support.apple.com/kb/ht1316
    As far as changing the SIM Cards out because you want to use a new carrier, you can remove the SIM card fomr the old carrier and put in the SIM  card form the new carrier. http://support.apple.com/kb/ht5163
    I hope this helps clear things up.

  • HT204053 how do i move page and numbers documents from one icloud login to another?

    how do i move page and numbers documents from one icloud login to another?
    I had to change my email address whcih meant new apple login.
    I have a number of docs in iwork/pages and iwork/numbers.  How do I transfer them to my new login?

    There's a couple of ways but my tip backing up your documents in the cloud is as good as any.

  • How to drag and drop user from one node to other node.

    Dear All,
    How to drag and drop user from one node to other node.I tried but no success.
    What are precautions to be taken.
    Cay anybody kindly explain it.
    Thank you.

    Hello, if you had this message you had created BP....
    Now you don't have to user USERS_GEN this transaction is used only in first action, when you create the user in R/3 and then you pass this user to EBP in the organizational structure.
    Now you have to:
    1) Go to PPOMA_BBP
    2) Double click on organizational unit that you want to put this user (purchasing organization or purchasing group box for example)
    3) Select assign button in the top of the functions in the transaction
    4) Click on incorporates -- position
    5) Put userID that you want to add in this organizational unit
    6) Click Save
    Thanks
    Rosa

  • How can I move the ODI Work Repository from one server to another server?

    How can I move the ODI Work Repository from one server to another server?

    Hi,
    If you would like to move your source models, target models and project contents from Work repository 1 to another work repository.
    I.e. Dev. server to Prod Server.
    1. Firstly, replicate the master repository connections i.e. with same naming conventions manually
    2. Go to Dev. Server work repository -> File Tab -> Click on Export work repository (save it in a folder)
    3. After exporting, you can view the xml files in the folders.
    4. Now, Open the Prod. server and make sure you already replicated mas. rep. details.
    5. Now, right click on model and import source model in synonym mode insert_update (select source model from the folder where your xml file located)
    6. Similarily, import again target then Project.
    Now, check. It should work.
    Thank you.

  • Why cannot I drag and drop songs from one playlist to another?

    Actually I have two questions.  I just updated from Leopard to snow leopard.  Now when I import songs, it says "Do you want to import to burn playlist?"  I click "yes".  Then when it is finished copying, I go to "playlists" on the top of the screen and click on the "burn playlist" and it says there are no items.  Where did the songs go.  I would like to burn a playlist that I imported this way.  I haven't tried arranging songs in the order I want them yet, but now see that is an issue also.  I also used to see a list of my playlists on the left side of the screen and the songs within each of those playlists when I clicked on them and easily could drag and drop songs from one playlist to another.  How do I do the same functions that I used to do before I updated? Does this update make it impossible to do the same functions as before?  Where can I find a "manual" of sorts to direct me to explain this new format?  If there is no way to do these things, I will have to say that I want my old iTunes back.  Can I do so???  Actually, the only reason I updated was so that I could play pix and movies from my camera into iPhoto.  When I did so, it said I had to update other programs to get iPhoto to work.  I am trying very hard not to be very frustrated.  PLEASE HELP!!!!!!!!!!!!!!!!!!

    After poking around for a while figured how to do things in this new iTunes.  Not as intuitive as the old one.  Sorry I don't have time to tell what I figured out.  Maybe some other time.

  • How can I transfer my app store purchases from one account to another?

    Can I transfer my apps to a new iTunes account from my old one? How?
    Thanks.

    No, you cannot transfer apps from one account to another iTunes account. Apps are DRM protected and forever tied to the account used to originally obtain them.

  • How can I transfer my apple ID acc from one Itouch to another ?

    How can I transfer my apple ID acc from one Itouch to another ?

    No, you cannot transfer apps from one account to another iTunes account. Apps are DRM protected and forever tied to the account used to originally obtain them.

  • HT5787 How do I transfer an Itunes gift card from one account to another ? I do not remember the password or the security questions.

    How do I transfer an Itunes gift card from one account to another ? I do not remember my password or know my security questions.

    You can't do it yourself. If you've just redeemed it and not spent any of it then you could try contacting iTunes Support and see if they can move it the other account : http://www.apple.com/support/itunes/contact/ - click on Contact iTunes Store Support on the right-hand side of the page, then Purchases, Billing & Redemption

  • How to use utl_ftp package to transfer files from one system to another

    Hi all,
    How to use utl_ftp package to transfer files from one system to another using plsql procedure .
    I failed to find the appropriate document ,kindly help me .
    Thanks,
    P Prakash

    prakash wrote:
    I am sorry tell you, this blog is not enough to for me.It's not a blog, it's Chris' website where you download the package from. Once you download the package and unrar it, then the package spec gives instructions (and I think there's instructions on how to install it too).
    Kindly let me know if there is any oracle documentation for this .It's not an Oracle created package, it was created by Chris. It's based around the UTL_TCP package if you really want to get into the nitty gritty of how it works, but I don't think you do.

  • HT204380 How can I make a face time call from one country to another( supporsing both parties using iphone 4s). What will be the caller charges. If there is no charges as we use wifi, will there be a charge till connecting the call?

    How can I make a Face Time call from one country to another( supporsing both parties using iphone 4s). What will be the caller charges. If there is no charges as we use wifi, will there be a charge till connecting the call?

    FaceTime is free to use. You will not be charged for using FaceTime.

  • Move node and its silings from one jtree to another

    Hi,
    I am trying to move JTree nodes and its siblings from one JTree to another. If anyone has the code, please post it on the website or mail to [email protected]
    Thanks
    Pavan

    Pavan,
    You may have to do a sanity check before adding it.
    Better run the program in a debugger and have a break point at the clipBoard.put() line. Else system.out.println() lines will kill enormouse programming time rather than using debugger.
    Also in following this thread, i found that you may have to be bit more thorough with the DefaultMutableTreeNode class first.
    Thanks,
    ananth
    Thomas,
    for (int p = 0; p < jtree.getSelectionCount(); p++) {
                   System.out.println(".3.......p= "+p);
    node =
    =
    (EuamDefaultMutableTreeNode)paths[p].getLastPathCompon
    nt();
                        clipBoard.put(node.toString(), node);
                   System.out.println(".4...........");
    Giving error at clipBoard.put()
    line....java.lang.NullPointerException
    ..Any idea why?
    Thanks.
    Pavan

  • HT201269 How do I transfer my SMS text messages from one Iphone to another or to my Macbook Pro?

    How do I transfer my SMS text messages from one Iphone to another or to my Macbook Pro?

    Or you can be guided bt this 'officail' Apple support document:
    http://support.apple.com/kb/PH4441
    Ciao.
    Csound 1 greetings:  Nothing wrong with a little plagiarism.

  • How to pass column name as a   values from one page  to another

    hi
    i have created a report(pivot) from a table
    SQL> SELECT * FROM T;
    C1  C2          C3 D                SEQ
    A   AA           2                    1
    A   AB           3                    2
    A   AC           2                    3
    B   AB           5                    4
    B   AC           6                    5
    SQL> SELECT C1
      2  ,NVL(MAX(CASE WHEN C2='AA' THEN C3 END),'') AA
      3  ,NVL(MAX(CASE WHEN C2='AB' THEN C3 END),'') AB
      4  ,NVL(MAX(CASE WHEN C2='AC' THEN C3 END),'') AC
      5  ,SUM(C3) FROM T GROUP BY C1;
    C1          AA         AB         AC    SUM(C3)
    A            2          3          2          7
    B                       5          6         11
    SQL>
    my requirement in Apex is like this(reverse)
    eg-
    when i click on cell values '2' then,it should return
    C1  C2          C3 D                SEQ
    A   AA           2                    1
    {quote}how to pass column name as a  values from one page to another
    for example i have to pass 'c2' as a value to next page{quote}for report pivot you can reffer below link
    Report
    Amu

    thanks for your reply
    i 'm doing what exactly you mention here .
    my problem here is
    i have 15 columns
    i am executing a query based on the values of the column(column name)  in the target page
    1)here i am passing(all) the column values to the next page-but  i want to pass only one column values(column name)
    when i click on any cell of that  column
    OR
    2)i can pass all column name to target page -there(in the target page) i can filter out
    i think option 1 would good if you filter out the unwanted columns
    Regards
    Amul

  • Can I Copy and Paste text from one Contact to Another on iPhone 3G?

    Can I Copy and Paste text from one Contact to Another on iPhone 3G?
    Or even better while the iPhone is connected to my PC can I view the address book on the iPhone and make changes using my PC keyboard?
    I had a challenge importing from my outlook as it created dual entries for people I had with multiple email addresses or telephone numbers so I need to copy and paste contact info from one to antoher.
    Can anyone help?

    MCWEB wrote:
    Can I Copy and Paste text from one Contact to Another on iPhone 3G?
    You will be able to do copy & paste when 3.0 comes out this summer.
    Or even better while the iPhone is connected to my PC can I view the address book on the iPhone and make changes using my PC keyboard?
    No. You would make changes to the address book on your PC and then sync via iTunes.

Maybe you are looking for