About size OCR and voting disk

Similar Questions

• OCR and voting disk

  Hi all
  
  What is the difference b/w OCR and voting disk

  The voting disk is a file that manages information about the node membership and OCR is a file that manages the cluster and RAC database configuration information.

  Vote of disc - Oracle Clusterware uses the drive to vote to determine which instances are members of a cluster. The voting disk must reside on a shared disk. Basically, all the nodes of the RAC cluster register their heartbeat information on teas voting records. The number will determine the number of nodes in the RAC cluster. They are also used to check availability of instances at the JRC and remove the unavailable out of the cluster nodes. It helps prevent the condition "split brain" and maintains intact the database information. The split brain syndrome and its effects and how it has been successful in oracle is mentioned below.
  For high availability, Oracle recommends to have a minimum of three disks with voting rights. If you configure a single voting disk, then you must use external mirror to provide redundancy. You can have up to 32 disks with right to vote in your cluster. What I could understand the odd value of the number of disks to vote is that a Noah should see voting disk to continue to operate, so with 2 maximum number, if he sees that 1, is not the maximum value but one half of the value of the voting disk. I always try to look for more on this concept.

  OCR (Oracle Cluster registry) - is located on the shared storage, and maintains information on the configuration of the cluster and cluster database. OCR contains such information which instances of database nodes and services that is running on what database.

  Registry of Cluster Oracle (OCR) is such a component in 10g THAT CARS used to store the cluster configuration information. It is a component of shared disk, usually placed in a shared gross volume that must be accessible to all nodes in the cluster. The demon OCSSd manages the configuration information in the OCR and maintains the changes in the cluster registry.

  ocrcheck is the command to check the OCR.

• May read IBM easy level affect OCR and voting disk diskgroup?

  Hello world

  I have an Oracle 11 g (11.2.0.4) CARS on a Solaris 10 Sparc Server, we also have a midsize v3700 IBM and we had no problem until last Friday, so far there has been activated the easy level feature since we connected two drives in the solid state it. Minutes later the diskgroup DG_GRID that stores OCR and voting disks that are non-mounted and the resource ora.crsd changed in DISCONNECTED state.

  We have that at this time, it was a question of synchronizing the disks, but this situation is repeated every day since last Friday,

  The alertlog displays these messages:

  2015-04-30 00:48:09.228:

  [crsd (19493)] CRS-1013: the location of the OCR in ASM disk group is inaccessible. Details in u01/app/11.2.0/grid/log/sur01/crsd/crsd.log.

  2015-04-30 00:48:09.253:

  [crsd (19493)] CRS - 0804:Cluster Ready Service interrupted due to the Oracle Cluster registry error [PROC-26: error when accessing the physical storage]

  ]. Details at (: CRSD00111 :) in u01/app/11.2.0/grid/log/sur01/crsd/crsd.log.)

  2015-04-30 00:48:09.366:

  [ohasd (1939)] CRS - 2765:Resource 'ora.crsd' failed on the server "sur01.

  2015-04-30 00:48:11.128:

  [crsd (19518)] CRS-1013: the location of the OCR in ASM disk group is inaccessible. Details in u01/app/11.2.0/grid/log/sur01/crsd/crsd.log.

  also, when I checked the crsd.log I can read the following lines:

  2015-04-30 00:46:04.664: [CRSPE] [48] {1:48096:3524} LAUGHED [ora. DG_GRID. [DG sur01 1] target new State: [OFFLINE] old value: [Online]

  2015-04-30 00:46:04.665: treatment [CRSOCR] [46] {1:48096:3524} Multi write batch...

  2015-04-30 00:46:04.665: [CRSPE] [48] {1:48096:3524} LAUGHED [ora. DG_GRID. [DG sur01 1] internal new State: [STOP] old value: [STABLE]

  2015-04-30 00:46:04.666: [CRSPE] send message [48] {1:48096:3524} to agfw: id = 33323

  2015-04-30 00:46:04.666: [AGFW] [43] {1:48096:3524} Agfw Proxy Server received the message: RESOURCE_STOP [ora. DG_GRID. [DG sur01 1] ID 4099:33323

  2015-04-30 00:46:04.666: [CRSPE] [48] {1:48096:3524} CRS-2673: attempt to stop ' ora. DG_GRID. DG' on 'sur01.

  ...

  So I noticed the diskgroup DG_GRID was down, I re - it easily mounted without warnings and errors, and then I started the resource ora.crsd, according to the journal of alerts, everything was ok

  2015-04-30 06:33:12.848:

  [crsd (16199)] CRS-1012: OCR service began the sur01 node.

  2015-04-30 06:33:13.402:

  [crsd (16199)] CRS - 1201:CRSD began the sur01 node.

  The fact is, it is events every day approximately at the same time (00:30-00:45) and he started since the easy tier feature has been enabled in the SAN.

  I want to know is there any recorded case that happened with this feature? How can I solve this?

  Any help will be appreciated.

  Looks like maybe even cause high latency but low IOPS / s

  In other words, san won't answer the door immediately because he's busy household and crsd looks forward to someone to answer the door.

  You can layer does not to futz with things?

• How to customize the location of OCR and voting disks.

  Hello

  Today I installed the first time CARS (gR 11, 2) on HP UX 11-31 with ASM. Customer wishes to place OCR and voting disks in a specific disk group.  Today during the installation, I couldn't find an option to indicate the location of the OCR and voting disk. That's why I continued with the default location and the installation is completed successfully. Now my question is

  (1) is it possible to change now?

  (2) I have a facility more tomorrow, is it possible to specify the location before you start the actual installation. Can any body tell me the way to do this?

  In parallel, I check in the net as well...

  Thank you in advance...

  Concerning

  S/N...

  Hello

  I got solutions for both of my questions... so pls ignore the same.

  Concerning

  S/N...

• OCR and voting disks (vd) are in ASM, I can stop the ASM instance?

  Hello
  
  I have two RAC nodes in the program of production installation and test setup. OCR and voting disks (vd) are in ASM, I can stop the ASM instance?
  
  -Kumar

  Hi Kumar,

  No, we can't.

  Best practice is that you need to stop the battery Oracle Clusterware on the node on which you must stop the Oracle ASM instance.

  Use "crsctl stop cluster node_name - n" or "crsctl stop crs" for this purpose.

  It could be that useful...

  Thank you
  LaserSoft

• Backup of the OCR and voting disk

  Hello
  
  A few quick questions related to the backup of the OCR (via ocrconfig-export) and vote (via SD) disc.
  
  
  (a) I can back up disc OCR and vote while the database is running.
  
  (b) do I need login as root for the backup of the OCR disk and vote.
  
  
  Thank you
  C.

  Hello

  I recommend you read the TechNote below, if you use Clusterware 11.1 or earlier:

  * Information on OCR and drive to vote in Oracle 10 g Clusterware (RAC) [ID 1092293.1] 2 *.
  Follow these topics:
  7 backup and restore of OCR and voting disk
  8. backup of the OCR files
  9 restore the OCR file

  Kind regards
  Levi Pereira

• OCR and VOTING disks

  Hi all
  
  Only question. On a 10g R2 RAC installation, is allowed to put the discs OCR and VOTING in the case of the ASM? Or this function is available on 11g?
  
  Kind regards
  dbajug

  Hello

  This feature is only available from 11 GR 2!
  11 GR 1 matter still expects records on RAW devices

  Have a look here: http://www.dba-oracle.com/oracle11g/t_cluster_voting_disk_registry.htm

  See you soon
  FJFranken

• Confusion with the file system OCFS2 OCR and voting disk RHEL 5, Oracle11g,

  Hi all
  
  I am trying to install the Oracle 11 g 3 node RAC database
  
  The environment on which I must make this implementation is as follows:
  Oracle 11g.
  Red Hat Linux 5 x 86
  Oracle Clusterware
  ASM
  Storage EMC
  250 GB of disk storage.
  SAN
  
  From now on, I am installing Oracle Clusterware on 3 nodes.
  
  I performed these tasks for cluster installations.
  
  1 configure the kernel parameters
  2 configure the user limits
  3 edit the /etc/pam.d/login file
  4 set up the groups and users to the operating system for Oracle Clusterware
  5. configure the environment Clusterware Oracle owner
  6. install the rpm CVUQDISK package
  7 configure the Hosts file
  8. check the network configuration
  9 configure SSH on all the Cluster nodes (equivalence of the user)
  9 enable SSH on all the Cluster nodes (equivalence of the user)
  10 installing Oracle Cluster File System (OCFS2)
  11. check the Installation of the (OCFS2) Oracle Cluster file system
  12 set the OCFS2 (/ etc/ocfs2/cluster.conf)
  13 set up the stack of Cluster O2CB for OCFS2
  
  BUT, here again the after that I'm a little confused on how to proceed. The next step is to format the disk and mount the OCFS2, directories of software... so, create etc.
  I asked my administration system to provide me with two partitions so that I could get in shape with the OCFS2 file system.
  
  He wrote telling me.
  
  * "Is what you want before I do it?" *
  
  * / dev/emcpowera1 is 3 GB and OCFS2.* format
  * / dev/emcpowera2 is 3 GB and OCFS2.* format
  
  * Those who are big enough for you? If not, I can re-size and re - format the *.
  * before I climb on the servers.*
  * the SAN is shared storage. / dev/emcpowera is one of the three LUNS on *.
  * storage is shared, and it is 214 GB. At the moment there are only two *.
  * partitions on it - the ones I have listed below. Can I repartition the LUN everything *.
  * as you want it.*
  * Where do you want that these climbs to: *.
  
  * / dev/emcpowera1 *.
  * / dev/emcpowera2 *.
  
  * I thought if this mounting technique would work as follows: *.
  
  * emcpowera1: / u01/shared_config/OCR_config *.
  * emcpowera2: / u01/shared_config/voting_disk *.
  
  * Let me know how you would like that mounted. » *
  
  Please recommend me what I should pass so that I can ask him exactly the same.
  
  My second question is, as we use the DSO, for which I'm going to configure ASM after clusterware installation, do I install Openfiler?
  PLS, check the environmental information that I provided above and make recommendations.
  
  As of now, I am using Jeffery hunters guide to install the entire installation. You think the installation guide everything is fine with my environment?
  http://www.Oracle.com/technology/pub/articles/hunter_rac11gr1_iscsi.html?rssid=rss_otn_articles
  
  Kind regards
  MK

  Hello Lawrence,.

  Thank you.

  Mark this question as answered.

  See you soon,.

  Rodrigo Mufalani
  http://mufalani.blogspot.com

• OCR and voting disk file system permissions?

  On a new installation of Oracle Clusterware 11.2 (11.2.0.2) cooked that approval of the OS will be on the filesystem (NFS share) for
  /ocrVote01
  /ocrVote02
  /ocrVote03
  
  ?
  I did /ocrVote01 rac dba
  /ocrVote02 rac dba
  /ocrVote03 rac dba
  And the ocr file is created but it has zero byte. and files with right to vote are not generated?

  yakub21 wrote:
  On a new installation of Oracle Clusterware 11.2 (11.2.0.2) cooked that approval of the OS will be on the filesystem (NFS share) for
  /ocrVote01
  /ocrVote02
  /ocrVote03

  Hello

  Please have a read http://download.oracle.com/docs/cd/E11882_01/install.112/e17212/storage.htm#CDEEBADI

  See you soon

• Oracle 11g r2 Linux backup voting disk and OCR

  Hi experts
  
  I want to back up the voting disk and OCR for our Oracle 11 g r2 on broadband, what is the best way? Thank you

  Hello

  Oracle Clusterware automatically creates backups of OCR every 4 hours. At all times, Oracle Clusterware still retains the last 3 copies of backup of the OCR that are 4 hours old, aged 1 day and 1 week.

  See this link
  http://download.Oracle.com/docs/CD/B28359_01/RAC.111/b28252/adminoc.htm#BJFJAJCI :)

  If you want to save your metadata ASM which includes (OCR and voting disk) tape
  You can create a script to let the backup agent judge with the backup job, and then copy it to the tape library

• Why the OCR & voting disk group is maintenance name SCAN

  Hi all

  I installed 11g R2 Grid Infrastructure followed the unique database software. I have not yet created any database.

  When I opened asmca-> diskgroup, I see the diskgroup which I created during the installation of the grid. When I select this diskgroup-> View Serviced databases, which is the expected result? I assumed it to be empty. But, in my case, I see my Cluster name (SCAN) as the name of database and used space is. 26 GB. Can someone clarify the on it. Thanks in advance.

  Hello

  you've done a full grid (software + configuration) installation before the only software intallation of the db. During this process, you can create the asm instance and at least a single diskgroup, which holds the OCR and voting disks in the cluster. It is the diskgroup see you and it looks like you have named your cluster.

  Concerning

  Thomas

• RAC: Backup to disk OCR and vote

  Hello
  
  I read that OCR/vote drive benefits automatically every 4 hours, but in my system is not saving.
  
  [grid@rac1esb bin] $ ocrconfig - showbackup
  PROT-24: Auto backups for Oracle Cluster registry are not available
  PROT-25: manual backups for Oracle Cluster registry are not available
  
  
  How to set up automatic backups of OCR.
  
  Concerning

  OCR backups are performed automatically every 4 hours... I mean 4 hours of continuous operation...

  I see the details above you posted that there is no OCR backups (both automatic and manual is not available) and the RAC is freshly installed.

  You can use the ocrconfig - manualbackup as root for OCR and voting disks for backup

• RAC + ASM: Grid OCR and VotingDisk - installer puts on simple Diskgroup

  Hi all
  
  It seems that the grid Setup does me not to choose/create more than 1 (one) Diskgroup OCR and voting disk. Am I missing something, or is it best practice?
  
  I thought it would have been good to multiplex OCR/vote at least 2 different ASM starts...
  
  I'm also confused because the oracle documentation says that, for most installations, starts at only 2 would be enough ("Data + index + LOBs" and "FRA").
  
  In a matter of fact, what I was planning to do is have 3 starts in this configuration (data, index + LOBs, FRA) and have OCR and vote multiplexes on TWO 'data' and 'Index + LOB '. But now I don't know if the sharing of data and indexes have a meaning, ASM...
  
  (1) that it makes sense (the fact I want to multiplex OCR + vote)?
  (2) how to achieve the result desired during the installation, if possible (multiplexing OCR + vote)?
  (3) to other recommendations (for example using a 4th Diskgroup, or should I use only 2 of them)?
  (4) with ASM, is it still wise to separate the data and the indexes on different starts?
  
  Thanks for your help

  Hello

  rlomba wrote:
  Hi all

  It seems that the grid Setup does me not to choose/create more than 1 (one) Diskgroup OCR and voting disk. Am I missing something, or is it best practice?

  My recommendation: this first diskgroup you can use to store your files with the right to vote and the OCR, and later, you can create another small diskgroup add OCR and move ASMSPFILE to this new diskgroup.

  Vote files can be stored in a single diskgroup.

  I thought it would have been good to multiplex OCR/vote at least 2 different ASM starts...

  I'm also confused because the oracle documentation says that, for most installations, starts at only 2 would be enough ("Data + index + LOBs" and "FRA").

  In a matter of fact, what I was planning to do is have 3 starts in this configuration (data, index + LOBs, FRA) and have OCR and vote multiplexes on TWO 'data' and 'Index + LOB '. But now I don't know if the sharing of data and indexes have a meaning, ASM...

  (1) that it makes sense (the fact I want to multiplex OCR + vote)?

  I really do not recommend putting database files and clusterware together. This may disturb the management of the environment and could dowtime. (for example, you can never stop the diskgroup)
  for example: files with right to vote are not stored in the diskgroup (+ data), they are placed directly into asmdisk, then in case of maintenance in the diskgroup, for example to increase the size of the lun, you can just delete the asmdisk, you must move the files with right to vote in another place and realize the diskgroup maintenance.

  Dowtime? Yes... You can move only the voice and the ocr without interruption of service, but to move ASMSPIFILE, you need downtime. This is necessary for ASM using new SPFILE and release the old Diskgroup. * ORA-15027: active use of the diskgroup opposes its release (with no connected customer database) [ID 1082876.1*]

  (2) how to achieve the result desired during the installation, if possible (multiplexing OCR + vote)?

  You can't get the result desired during installation, but you can reconfigure at the end of the installation.

  Read:
  {message: id = 10028550}
  I recommend you read the entire thread above

  (3) to other recommendations (for example using a 4th Diskgroup, or should I use only 2 of them)?

  My recommendation, OCR and ASM SPFILE (diskgroup1), MIRROR of the OCR and VOTING QUEUES (DISKGROUP 2), FILES of DATABASE (DISKGROUP3), ONLINELOG (4 Diskgroup in an array with RAID 10) and FRA (DISKGROUP 5)

  Read:
  {message: id = 9676881}

  (4) with ASM, is it still wise to separate the data and the indexes on different starts?

  If you use different tables in the storage of data and indexes, perhaps, but I recommend doing this only if you have performance issues and you did the test and know there will be benefits if you don't have a reason why I do not recommend this because it increases the administration of storage, ASM and data base.

  Read about the use of different tablespace for data and indexes.
  {: identifier of the thread = 2189138}

  More 1 diskgroup using database files must be careful, because the Oracle restore can only use a single diskgroup.
  http://levipereira.WordPress.com/2011/10/25/tip-hint-db_create_file_dest-behavior-when-using-ASM/

  Kind regards
  Levi Pereira

• How to OCR and the drive to vote of raw devices for ASM diskgroup

  Hello
  
  I plan to upgrade my environment clusterware/ASM 11.1.0.6 to the grid
  infrastructure 11.2.0.1 on Solaris sparc 64-bit.
  I also plan on spending the OCR and discs of raw devices to ASM voting
  starts. But how to do? When should I do: upgrade
  process or after the upgrade? When should I start?
  
  Thank you

  create a disk group or use an existing disk group that matches your redundancy needs

  To ocr asm
  ===============
  1 ensure that the clusterware version 11.2.0
  # crsctl query crs activeversion
  Oracle Clusterware version active on the cluster is [11.2.0.1.0]

  2. replace the OCR file by the asm disk group
  #ocrconfig - replaced - replacement<+ASM diskgroup="">

  3 remove the old file ocr
  #ocrconfig - remove

  4. check the integrity of the ocr
  $cluvfy comp ocr n - verbose

  SE asm votedisk
  ======================
  1. Add the voting disk to the asm disk group
  #crsctl replace votedisk<+asm disk="" groupname="">

  Note: According to the disk group redundancy the required number of ocr and voting disk files will be created
  Normal: 2ocr, 3voting disc
  For the great: 3 ocr, voting 5 disc

  do not backup the ocr/votedisk dd in 11.2.0

• OCR and heth vote file

  Hi gurus,
  
  is there any method to check the health of the ocr and voting files. How do we know if the ocr or vote of the files is corrupted.
  
  Thank you!

   returns an individual status for each file as well as a result for the overall OCR integrity check. The following is a sample of the OCRCHECK output:
  
  $ pwd
  /u01/db/crs/10.2.0/bin
  $ ocrcheck
  Status of Oracle Cluster Registry is as follows :
           Version                  :          2
           Total space (kbytes)     :    1049004
           Used space (kbytes)      :      15948
           Available space (kbytes) :    1033056
           ID                       :  941199149
           Device/File Name         : /dev/rhdiskpower52
                                      Device/File integrity check succeeded
  
                                      Device/File not configured
  
           Cluster registry integrity check succeeded
  The following ocrdump utility examples extract various types of OCR information and write it to various targets:
  
  ocrdump
  Writes the OCR content to a file called OCRDUMPFILE in the current directory.
  
  ocrdump MYFILE
  
  $ ocrdump
  
  $crsctl query css votedisk
  
  and also using cluvfy
  

  See the link:-http://download.oracle.com/docs/cd/B19306_01/rac.102/b14197/appsupport.htm#BEHBHFJB