5 Replies Latest reply: Dec 11, 2012 1:16 AM by Mahir M. Quluzade RSS

    Do we need voting disk for standalone ASM?

    789987
      Hi,

      we built ASM on standalone server which has DATA n FLASH diskgroups. Do we also need to have additional diskgroup for storing voting/ocr disk information in one more diskgroup?

      Does standalone need additional diskgroup other than DATA n FLASH?

      Standalone server has voting disk concept?
        • 1. Re: Do we need voting disk for standalone ASM?
          phaeus
          Hello,
          in a Standalone GI Installation you did not need voting or OCR Disks. This things are only needed at cluster level installation.

          regards
          Peter
          • 2. Re: Do we need voting disk for standalone ASM?
            861120
            Please pay attention

            Voting and ocr is not need for standalone configuration, then is not necessary create diskgroup for it.

            Your environments is standalone, isn't it?

            For details about voting and ocr disks: http://docs.oracle.com/cd/E11882_01/rac.112/e16794/votocr.htm

            Regards
            Flávio Soares
            • 3. Re: Do we need voting disk for standalone ASM?
              789987
              Yes my environment is standalone.
              • 4. Re: Do we need voting disk for standalone ASM?
                Levi Pereira
                Hi,

                Although of ASM depend on CSS to work in standalone environment you don't configure voting disk or OCR. You need only be concerned about OLR file. (backup and restore operation). Oracle Restart: how do you manage, create and remove OLR Backups [ID 1273928.1]

                When you install Oracle Grid Infrastructure for a standalone server, Oracle Universal Installer (OUI) configures the single-node version of Oracle Cluster Synchronization Services (CSS).
                The CSS service is required to enable synchronization between an Oracle ASM instance and the database instances that rely on it for database file storage.

                I recommend you create a small diskgroup to store ASM Spfile. ASMCA by default store ASM Spfile on first Diskgroup created, so if you remove this diskgroup ASM won't start.
                ASM 11gR2 Instance Is Unable To Start Due To ASM Spfile Is Missing. [ID 946145.1]

                Because that I recommend you store this file on a Diskgroup separately to avoid headache.

                Regards,
                Levi Pereira
                • 5. Re: Do we need voting disk for standalone ASM?
                  Mahir M. Quluzade
                  Hi,

                  if you are using Oracle Standalone database on ASM, then you not need any VOTING DISK and OCR.
                  Because this need for only Oracle Real Application Cluster - Clusterware.

                  Please watch my videos, please :
                  http://www.youtube.com/watch?v=aB5wVfBnmQ8&feature=g-crec-u - Installing Oracle Database 11g on ASM (Standalone Server)
                  http://www.youtube.com/watch?v=YH8YChP6e_w&feature=g-crec-u - Migration to ASM (AZEROUG Last meeting presentation video)



                  Regards
                  Mahir M. Quluzade
                  www.mahir-quluzade.com